{ "dataset_name": "Dock Leveler Symptom Reference Matrix", "version": "1.2.0", "compiled_by": "Uptime Dock & Door Research", "publisher": "Uptime Dock & Door", "compiled_date": "2026-09-17", "verified_date": "2026-09-17", "coverage": "Selected manufacturer documents, not a geographically sampled equipment dataset; federal U.S. general-industry context only for the legal discussion.", "source_document_period": "2018-08-31/2026-08-06, including the historical comparison; month-only issue precision retained in records.", "description": "Source-linked symptom references with model conditions, manual locators, and separately labeled editorial reporting guidance. No fault-to-OSHA classification or failure-rate estimate.", "reuse_note": "No blanket reuse license is assigned. The compilation adds descriptions and organization; manufacturers retain rights in their manuals. No third-party manual or diagram is redistributed.", "missing_value_rule": "Empty means unknown/not supplied, not zero. Comparison zero denotes no separately matched heading.", "key_figures": [ { "id": "F1", "label": "Source-linked matrix entries", "value": 140, "unit": "reference entries", "population": "Selected troubleshooting sections from five named manuals", "geography": "Not geographically sampled", "period": "Manual issue dates December2018–August2026; compiled 2026-09-17", "evidence_type": "Calculated", "formula": "42 + 24 + 26 + 27 + 21 = 140", "source": "dock-leveler-symptom-matrix.csv", "limitation": "Includes a duplicate, warning, design note and inspection prompt; not 140 distinct faults." }, { "id": "F2", "label": "Mechanical historical/newer document entries", "value": { "2018": 34, "2026": 42 }, "unit": "numbered source entries", "evidence_type": "Calculated", "formula": "2018: 5+7+3+4+2+2+5+3+3=34; 2026: 6+7+5+7+6+4+4+3+0=42", "source": "dock-leveler-edition-changes.csv EC-01–EC-09", "limitation": "Different document families; not a change in failure frequency, field performance, or proof of applicable edition." }, { "id": "F3", "label": "Hydraulic historical/newer document entries", "value": { "2018": 14, "2026": 24 }, "unit": "numbered source entries", "evidence_type": "Calculated", "formula": "2018: 6+1+3+4+0+0=14; 2026: 12+2+4+3+2+1=24", "source": "dock-leveler-edition-changes.csv EC-10–EC-15", "limitation": "Includes notes; descriptive comparison of two different manuals only." } ], "files": { "symptom_matrix": "dock-leveler-symptom-matrix.csv", "edition_changes": "dock-leveler-edition-changes.csv", "terminology_crosswalk": "dock-leveler-terminology-crosswalk.csv", "authority_gate": "dock-leveler-authority-gate.csv", "manual_index": "dock-leveler-manual-index.csv", "sources": "dock-leveler-sources.csv", "onpage_crosswalk": "dock-leveler-onpage-crosswalk.csv", "data_dictionary": "dock-leveler-data-dictionary.csv" }, "data": { "symptom_matrix": [ { "row_id": "DLT-001", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs, deck stays put", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor DOES start and run", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Foreign materials may be lodged between the side of the deck and the pit wall", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-002", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs, deck stays put", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor DOES start and run", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "The bumpers may be damaged or missing, allowing the truck to contact and hold the lip", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-003", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs, deck stays put", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor DOES start and run", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Equipment or goods may be parked on the dock leveler", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-004", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs, deck stays put", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor DOES start and run", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Low hydraulic oil in power unit", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-005", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs, deck stays put", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor DOES start and run", "applicability_condition": "Three-phase power supply only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Incorrect motor rotation", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-006", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs, deck stays put", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor DOES start and run", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Relief valve is bypassing", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-007", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs, deck stays put", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor DOES start and run", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Pilot operated to close check valve will not close", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-008", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Deck hesitates before it starts to lift", "source_symptom_reference": "Deck will not begin to raise immediately when motor begins to run", "applicability_condition": "Usually occurs only after the deck cylinder hose has been replaced with a new hose that was not pre-filled with oil", "leveler_type": "Hydraulic", "cause_or_note_summary": "Air trapped in the deck lifting cylinder", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-009", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Total silence when you press the button", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor does not attempt to run, no sound is heard from motor, powerpack or control box", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "No power supply to control box", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-010", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Total silence when you press the button", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor does not attempt to run, no sound is heard from motor, powerpack or control box", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Thermal overload tripped open", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-011", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Total silence when you press the button", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor does not attempt to run, no sound is heard from motor, powerpack or control box", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Faulty control box component, for example a fuse, touch button, contactor or transformer", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-012", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "The breaker trips every time", "source_symptom_reference": "Deck will not raise when touch button is operated. Motor attempts to run, but power supply breaker switch trips to off position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Supply branch circuit overloaded by other equipment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-013", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip does not swing all the way out", "source_symptom_reference": "Lip does not extend fully", "applicability_condition": "Stated for the case where oil level in the reservoir is NOT low", "leveler_type": "Hydraulic", "cause_or_note_summary": "Lip plate bent causing hinge to bind", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-014", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip does not swing all the way out", "source_symptom_reference": "Lip does not extend fully", "applicability_condition": "Stated for the case where oil level in the reservoir is NOT low", "leveler_type": "Hydraulic", "cause_or_note_summary": "Foreign material lodged in the lip hinge area", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-015", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip does not swing all the way out", "source_symptom_reference": "Lip does not extend fully", "applicability_condition": "Stated for the case where oil level in the reservoir is NOT low", "leveler_type": "Hydraulic", "cause_or_note_summary": "Relief valve is bypassing", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-016", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip drops back very slowly, worse in the cold", "source_symptom_reference": "Lip lowers slowly in normal temperatures and very slowly in extremely cold weather. Deck lowering speed is correct", "applicability_condition": "Deck lowering speed is correct; lip lowers slowly at normal temperature and very slowly in extreme cold.", "leveler_type": "Hydraulic", "cause_or_note_summary": "The manual warns against a valve adjustment for this symptom; opening the needle valve can make the deck lower too fast and lock the velocity fuse", "record_kind": "manufacturer_warning", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-017", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip drops back very slowly, worse in the cold", "source_symptom_reference": "Lip lowers slowly in normal temperatures and very slowly in extremely cold weather. Deck lowering speed is correct", "applicability_condition": "Deck lowering speed is correct; lip lowers slowly at normal temperature and very slowly in extreme cold.", "leveler_type": "Hydraulic", "cause_or_note_summary": "Gravity lowers the lip; free movement at the full-length hinge is necessary", "record_kind": "design_note", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-018", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck comes down too fast or too slowly", "source_symptom_reference": "Deck lowering speed is too slow or too fast", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Lowering speed adjustment required", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 28; match the symptom heading and numbered entry where present", "printed_page": "28", "pdf_page": "28", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-019", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck climbs partway then quits while the motor keeps running", "source_symptom_reference": "Deck raises partially and stops. Motor continues to run and power unit makes more noise than normal", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Oil level in reservoir is low", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 29; match the symptom heading and numbered entry where present", "printed_page": "29", "pdf_page": "29", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-020", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck is slower than it used to be", "source_symptom_reference": "Deck raises more slowly than normal and level in reservoir is normal", "applicability_condition": "Stated for the case where reservoir level is normal", "leveler_type": "Hydraulic", "cause_or_note_summary": "Deck or damaged skirts dragging on side of pit", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 29; match the symptom heading and numbered entry where present", "printed_page": "29", "pdf_page": "29", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-021", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck is slower than it used to be", "source_symptom_reference": "Deck raises more slowly than normal and level in reservoir is normal", "applicability_condition": "Stated for the case where reservoir level is normal", "leveler_type": "Hydraulic", "cause_or_note_summary": "Pilot operated to close check valve will not close", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 29; match the symptom heading and numbered entry where present", "printed_page": "29", "pdf_page": "29", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-022", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck is slower than it used to be", "source_symptom_reference": "Deck raises more slowly than normal and level in reservoir is normal", "applicability_condition": "Stated for the case where reservoir level is normal", "leveler_type": "Hydraulic", "cause_or_note_summary": "Faulty powerpack", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 29; match the symptom heading and numbered entry where present", "printed_page": "29", "pdf_page": "29", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-023", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck is stuck up in the air", "source_symptom_reference": "Deck will not lower from fully raised position. Lip does lower", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "The fall-safe velocity fuse located at the bottom of the deck cylinder is in the locked or closed position", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 29; match the symptom heading and numbered entry where present", "printed_page": "29", "pdf_page": "29", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-024", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck is stuck up in the air", "source_symptom_reference": "Deck will not lower from fully raised, lip extended position. Lip does lower", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "The fall-safe velocity fuse located at the bottom of the deck cylinder is in the locked or closed position", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 29; match the symptom heading and numbered entry where present", "printed_page": "29", "pdf_page": "29", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-025", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Hold-down mechanism is not releasing; the release chain or handle may be jammed or broken", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-026", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Foreign materials may be lodged between the side of the deck and the pit wall", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-027", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The bumpers may be damaged or missing, allowing the truck to contact and hold the lip", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-028", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lifting chain may be routed incorrectly", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-029", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Missing or broken spring(s)", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-030", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Main spring adjustment not adjusted properly", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-031", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck comes up too slowly for the lip to flip out", "source_symptom_reference": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Deck may be dragging on the side of the pit, slowing its movement", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-032", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck comes up too slowly for the lip to flip out", "source_symptom_reference": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Foreign material may be lodged between the side of the deck and the pit wall", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-033", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck comes up too slowly for the lip to flip out", "source_symptom_reference": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Side brush seals may be coming loose", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-034", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck comes up too slowly for the lip to flip out", "source_symptom_reference": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Insufficient lubrication at the front/rear hinges or the four arm lubrication points", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-035", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck comes up too slowly for the lip to flip out", "source_symptom_reference": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Someone is standing on the deck while the leveler is being operated", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-036", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck comes up too slowly for the lip to flip out", "source_symptom_reference": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The manual directs attention to the snubber chain without specifying a failed component", "record_kind": "inspection_prompt", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-037", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck comes up too slowly for the lip to flip out", "source_symptom_reference": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Lifting springs may require adjustment", "record_kind": "possible_cause", "source_note": "The manufacturer says to rule out the other listed causes before considering lift-spring adjustment.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-038", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip swings out then falls straight back", "source_symptom_reference": "The lip does not lock after fully extending", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip lock is not engaging; the spring may be broken or stretched, or the lock may have seized", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-039", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip swings out then falls straight back", "source_symptom_reference": "The lip does not lock after fully extending", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip actuator is bent or broken", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-040", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip swings out then falls straight back", "source_symptom_reference": "The lip does not lock after fully extending", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Foreign material is lodged in the lip lock mechanism", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-041", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip swings out then falls straight back", "source_symptom_reference": "The lip does not lock after fully extending", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Foreign object between the spools of the lip and the deck", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-042", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip swings out then falls straight back", "source_symptom_reference": "The lip does not lock after fully extending", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip spool is seizing, rusted or damaged", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-043", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not walk down, or fights you", "source_symptom_reference": "The deck will not walk down or is difficult to walk down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Foreign material in the pit may be blocking the mechanism", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-044", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not walk down, or fights you", "source_symptom_reference": "The deck will not walk down or is difficult to walk down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Side safety skirts are damaged and jammed against the wall", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-045", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not walk down, or fights you", "source_symptom_reference": "The deck will not walk down or is difficult to walk down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The dock strut is engaged", "record_kind": "possible_cause", "source_note": "Do not remove a support or enter the pit to test this possibility; report recent service history.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-046", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not walk down, or fights you", "source_symptom_reference": "The deck will not walk down or is difficult to walk down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The ratchet assembly may be damaged", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-047", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not walk down, or fights you", "source_symptom_reference": "The deck will not walk down or is difficult to walk down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Weather seals, skirts or deck may be dragging against the pit wall", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-048", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not walk down, or fights you", "source_symptom_reference": "The deck will not walk down or is difficult to walk down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lift springs are improperly adjusted; tension may have been mistakenly increased to troubleshoot another problem", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-049", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not walk down, or fights you", "source_symptom_reference": "The deck will not walk down or is difficult to walk down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The ratchet assembly may be damaged", "record_kind": "duplicate_source_entry", "source_note": "Repeated in the source table; matches DLT-046. Retained to make the source-entry count reproducible.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 26; match the symptom heading and numbered entry where present", "printed_page": "26", "pdf_page": "26", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-050", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck springs back up after being walked down", "source_symptom_reference": "The deck does not stay down: it springs back up after being walked down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The pull chain is stuck in the open position", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-051", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck springs back up after being walked down", "source_symptom_reference": "The deck does not stay down: it springs back up after being walked down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The ratchet pawl teeth are broken", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-052", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck springs back up after being walked down", "source_symptom_reference": "The deck does not stay down: it springs back up after being walked down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The ratchet assembly mounts are broken", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-053", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck springs back up after being walked down", "source_symptom_reference": "The deck does not stay down: it springs back up after being walked down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The ratchet pawl has a foreign object preventing it from locking into place", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-054", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck springs back up after being walked down", "source_symptom_reference": "The deck does not stay down: it springs back up after being walked down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Mis-adjusted auto collar", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-055", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck springs back up after being walked down", "source_symptom_reference": "The deck does not stay down: it springs back up after being walked down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "One or both springs damaged or missing in the ratchet assembly", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-056", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Damaged or missing dock bumpers allow the truck to park too close to the dock leveler", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-057", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Height difference between the dock and truck bed may be greater than recommended", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-058", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip actuator assembly may be damaged, causing the lip to extend too early in the cycle", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-059", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip actuator requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-060", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Cannot park the leveler with the truck still there", "source_symptom_reference": "The lip will not clear the rear of the truck when attendant attempts to park the dock while the truck is parked", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Damaged or missing dock bumpers allow the truck to park too close to the dock leveler", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-061", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Cannot park the leveler with the truck still there", "source_symptom_reference": "The lip will not clear the rear of the truck when attendant attempts to park the dock while the truck is parked", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Height difference between the dock and truck bed may be greater than recommended", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-062", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Cannot park the leveler with the truck still there", "source_symptom_reference": "The lip will not clear the rear of the truck when attendant attempts to park the dock while the truck is parked", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip actuator requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-063", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Cannot park the leveler with the truck still there", "source_symptom_reference": "The lip will not clear the rear of the truck when attendant attempts to park the dock while the truck is parked", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip crown is set too high", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-064", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip stays out after the truck pulls away", "source_symptom_reference": "The lip does not release or swing down when the truck departs", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip lock may have seized due to lack of lubrication, or due to foreign material in the pit", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-065", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip stays out after the truck pulls away", "source_symptom_reference": "The lip does not release or swing down when the truck departs", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "The lip lock may be held in the locked position by foreign material in the pit", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-066", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip stays out after the truck pulls away", "source_symptom_reference": "The lip does not release or swing down when the truck departs", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "No traffic has crossed the deck to break the lip lock", "record_kind": "possible_cause", "source_note": "This is not permission to put traffic on an unsupported or malfunctioning leveler.", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 27; match the symptom heading and numbered entry where present", "printed_page": "27", "pdf_page": "27", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-067", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Press the button and nothing lifts", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "The blower motor may have failed or been mis-wired", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-068", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Press the button and nothing lifts", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "The control station is not functioning properly", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-069", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Press the button and nothing lifts", "source_symptom_reference": "Deck will not raise", "applicability_condition": "Optional equipment only", "leveler_type": "Air-powered", "cause_or_note_summary": "Overload relay may have been tripped", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-070", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Press the button and nothing lifts", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Air bag may have been damaged", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-071", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Press the button and nothing lifts", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Main power feed may be disconnected or a fuse may have blown", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-072", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Press the button and nothing lifts", "source_symptom_reference": "Deck will not raise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Blower intake may be blocked", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-073", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not come back down", "source_symptom_reference": "Deck will not lower", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Debris may have accumulated under the platform", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-074", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not come back down", "source_symptom_reference": "Deck will not lower", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Maintenance stand may still be engaged", "record_kind": "possible_cause", "source_note": "Do not remove a support or enter the pit to test this possibility; report recent service history.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-075", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck will not come back down", "source_symptom_reference": "Deck will not lower", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Blower intake may be blocked", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-076", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck lifts slowly", "source_symptom_reference": "Deck raises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Air bag may be damaged", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-077", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck lifts slowly", "source_symptom_reference": "Deck raises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Cargo and other weight sources may be sitting on the deck", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-078", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck lifts slowly", "source_symptom_reference": "Deck raises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Blower intake may be blocked", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-079", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck lifts slowly", "source_symptom_reference": "Deck raises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Blower uncoupled from bag", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-080", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck lifts slowly", "source_symptom_reference": "Deck raises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Inadequate voltage", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-081", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip stays hanging down", "source_symptom_reference": "The lip will not extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Debris may be in the lip hinge", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-082", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip stays hanging down", "source_symptom_reference": "The lip will not extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Lip deployment mechanism may be damaged", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-083", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip stays hanging down", "source_symptom_reference": "The lip will not extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Damaged air bag", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-084", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip stays hanging down", "source_symptom_reference": "The lip will not extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Blower uncoupled from bag", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-085", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip stays hanging down", "source_symptom_reference": "The lip will not extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Incorrect voltage relative to blower motor voltage", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "45", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-086", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip will not fold back in", "source_symptom_reference": "The lip remains in the extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Lip may be bent or damaged", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 46; match the symptom heading and numbered entry where present", "printed_page": "46", "pdf_page": "46", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-087", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip will not fold back in", "source_symptom_reference": "The lip remains in the extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "The lip deployment mechanism may be damaged", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 46; match the symptom heading and numbered entry where present", "printed_page": "46", "pdf_page": "46", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-088", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip will not fold back in", "source_symptom_reference": "The lip remains in the extended position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Debris may have collected in the lip hinge", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 46; match the symptom heading and numbered entry where present", "printed_page": "46", "pdf_page": "46", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-089", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Damaged or missing dock bumpers allow the truck to park too close to the leveler", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 46; match the symptom heading and numbered entry where present", "printed_page": "46", "pdf_page": "46", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-090", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "Height difference between the dock and transport vehicle bed may be greater than recommended", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 46; match the symptom heading and numbered entry where present", "printed_page": "46", "pdf_page": "46", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-091", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "The lip actuator assembly may be damaged, causing the lip to begin extending too early in the cycle", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 46; match the symptom heading and numbered entry where present", "printed_page": "46", "pdf_page": "46", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-092", "symptom_group": "G7", "symptom_group_name": "Lip fouls the trailer", "plain_language_symptom": "Lip bangs into the back of the trailer", "source_symptom_reference": "The lip strikes the rear of the truck as the deck raises, stops, or slows down, and lip does not extend in the locked position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Air-powered", "cause_or_note_summary": "The lip actuator requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Blue Giant", "source_document": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "document_date": "2026-08-06", "source_location": "Troubleshooting, printed p. 46; match the symptom heading and numbered entry where present", "printed_page": "46", "pdf_page": "46", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-093", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Total silence when you press the button", "source_symptom_reference": "Platform does not rise. Motor does not energize", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Motor overload device tripped", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 42; match the symptom heading and numbered entry where present", "printed_page": "42", "pdf_page": "44", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-094", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Total silence when you press the button", "source_symptom_reference": "Platform does not rise. Motor does not energize", "applicability_condition": "Starter applies to three-phase units; relay applies to single-phase units.", "leveler_type": "Hydraulic", "cause_or_note_summary": "Motor starter (three-phase) or motor relay (single-phase) not energizing", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 42; match the symptom heading and numbered entry where present", "printed_page": "42", "pdf_page": "44", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-095", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor hums but will not turn", "source_symptom_reference": "Platform does not rise. Motor hums, but does not run", "applicability_condition": "Three-phase units only", "leveler_type": "Hydraulic", "cause_or_note_summary": "No voltage present on one line; the motor is said to be single-phased", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-096", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor runs but the deck stays put", "source_symptom_reference": "Platform does not rise. Motor runs in reverse", "applicability_condition": "Three-phase units only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Reversed phase sequence", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-097", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor energizes but does not run", "source_symptom_reference": "Platform does not rise. Motor energizes, but does not run", "applicability_condition": "Single-phase units only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Line voltage too low", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-098", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor energizes but does not run", "source_symptom_reference": "Platform does not rise. Motor energizes, but does not run", "applicability_condition": "Single-phase units only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Faulty motor centrifugal switch", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-099", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Motor energizes but does not run", "source_symptom_reference": "Platform does not rise. Motor energizes, but does not run", "applicability_condition": "Single-phase units only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Faulty motor capacitor", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-100", "symptom_group": "G8", "symptom_group_name": "Will not self-store", "plain_language_symptom": "Leveler will not store itself after the truck leaves", "source_symptom_reference": "Platform does not automatically return to the cross-traffic position or operates abnormally", "applicability_condition": "Units equipped with Auto Return To Dock only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Auto return proximity switch not sensing target correctly", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-101", "symptom_group": "G8", "symptom_group_name": "Will not self-store", "plain_language_symptom": "Leveler will not store itself after the truck leaves", "source_symptom_reference": "Platform does not automatically return to the cross-traffic position or operates abnormally", "applicability_condition": "Units equipped with Auto Return To Dock only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Faulty proximity switch", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-102", "symptom_group": "G8", "symptom_group_name": "Will not self-store", "plain_language_symptom": "Leveler will not store itself after the truck leaves", "source_symptom_reference": "Platform does not automatically return to the cross-traffic position or operates abnormally", "applicability_condition": "Units equipped with Auto Return To Dock only", "leveler_type": "Hydraulic", "cause_or_note_summary": "Loose or corroded wire connections, or a broken wire", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the original sound/message and equipment identity. Electrical testing or panel access requires personnel qualified for the work and the applicable safety procedure.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 43; match the symptom heading and numbered entry where present", "printed_page": "43", "pdf_page": "45", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-103", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pump operating in pressure relief mode but the deck stays put", "source_symptom_reference": "Platform does not rise. Pump operates in pressure relief mode", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Heavy object(s) on platform; for safety reasons the dock leveler is designed to lift only the platform's own weight", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-104", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pump operating in pressure relief mode but the deck stays put", "source_symptom_reference": "Platform does not rise. Pump operates in pressure relief mode", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Dock leveler binding", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-105", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pump operating in pressure relief mode but the deck stays put", "source_symptom_reference": "Platform does not rise. Pump operates in pressure relief mode", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Pressure relief set too low", "record_kind": "possible_cause", "source_note": "Motor full-load current limits in the manual constrain authorised adjustment; no setting or procedure is supplied here.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-106", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck is slower than it used to be", "source_symptom_reference": "Platform rises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Low hydraulic fluid", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-107", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck is slower than it used to be", "source_symptom_reference": "Platform rises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Contaminated hydraulic system", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-108", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck is slower than it used to be", "source_symptom_reference": "Platform rises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Damaged or blocked hydraulic hose(s) or valve(s)", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-109", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck is slower than it used to be", "source_symptom_reference": "Platform rises slowly", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Pressure relief set too low", "record_kind": "possible_cause", "source_note": "Motor full-load current limits in the manual constrain authorised adjustment; no setting or procedure is supplied here.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-110", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Motor bogs down at the top of the stroke", "source_symptom_reference": "Pump motor loads down when platform reaches the full raised position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Pressure relief set too high", "record_kind": "possible_cause", "source_note": "Motor full-load current limits in the manual constrain authorised adjustment; no setting or procedure is supplied here.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 44; match the symptom heading and numbered entry where present", "printed_page": "44", "pdf_page": "46", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-111", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "Deck stops short of full height", "source_symptom_reference": "Platform does not rise to full height", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Low hydraulic fluid", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-112", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip drops before the deck reaches the trailer", "source_symptom_reference": "Lip does not stay extended when leveler lowers", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "S1 sequence valve requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-113", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Deck goes up but the lip stays hanging down", "source_symptom_reference": "Platform DOES rise to full height, but lip DOES NOT extend or extend fully", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Low hydraulic fluid", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-114", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Deck goes up but the lip stays hanging down", "source_symptom_reference": "Platform DOES rise to full height, but lip DOES NOT extend or extend fully", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "S2 sequence valve requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-115", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Deck goes up but the lip stays hanging down", "source_symptom_reference": "Lip does not extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "S2 sequence valve requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-116", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Lip flips out before the deck is up", "source_symptom_reference": "Lip extends almost immediately when the RAISE button is pressed; platform rises after lip is fully extended", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "S2 sequence valve requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-117", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck drops and catches hard on the way down", "source_symptom_reference": "Platform locks into safety as platform lowers; lip drops to vertical position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Platform lowering speed is too fast; NV1 needle valve requires adjustment", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-118", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck drops and catches hard on the way down", "source_symptom_reference": "Platform locks into safety as platform lowers; lip drops to vertical position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Faulty velocity fuse", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-119", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Deck drops and catches hard on the way down", "source_symptom_reference": "Platform locks into safety as platform lowers; lip drops to vertical position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Hydraulic", "cause_or_note_summary": "Incorrect or aged hydraulic fluid", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "-", "document_date": "2021-04", "source_location": "Troubleshooting, printed p. 45; match the symptom heading and numbered entry where present", "printed_page": "45", "pdf_page": "47", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-120", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Platform does not rise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Heavy object(s) on platform; for safety reasons the dock leveler is designed to lift only the platform's own weight", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 30; match the symptom heading and numbered entry where present", "printed_page": "30", "pdf_page": "32", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-121", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Platform does not rise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Disconnected or broken release chain", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 30; match the symptom heading and numbered entry where present", "printed_page": "30", "pdf_page": "32", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-122", "symptom_group": "G1", "symptom_group_name": "Will not rise", "plain_language_symptom": "Pull the chain and nothing happens", "source_symptom_reference": "Platform does not rise", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Dock leveler binding", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 30; match the symptom heading and numbered entry where present", "printed_page": "30", "pdf_page": "32", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-123", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "It takes a hard pull and the deck barely comes up", "source_symptom_reference": "Platform rises slowly or does not rise to the full raised position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Heavy object(s) on platform", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 30; match the symptom heading and numbered entry where present", "printed_page": "30", "pdf_page": "32", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-124", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "It takes a hard pull and the deck barely comes up", "source_symptom_reference": "Platform rises slowly or does not rise to the full raised position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Dock leveler binding", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Record the visible condition from a safe position and notify the responsible supervisor; this row does not authorize load removal, trailer movement, or a test cycle.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 30; match the symptom heading and numbered entry where present", "printed_page": "30", "pdf_page": "32", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-125", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "It takes a hard pull and the deck barely comes up", "source_symptom_reference": "Platform rises slowly or does not rise to the full raised position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Insufficient main spring tension", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 30; match the symptom heading and numbered entry where present", "printed_page": "30", "pdf_page": "32", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-126", "symptom_group": "G2", "symptom_group_name": "Rises slowly or not fully", "plain_language_symptom": "It takes a hard pull and the deck barely comes up", "source_symptom_reference": "Platform rises slowly or does not rise to the full raised position", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Damaged or worn hold-down mechanism", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 30; match the symptom heading and numbered entry where present", "printed_page": "30", "pdf_page": "32", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-127", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Platform reaches full height, but the lip does not fully extend", "source_symptom_reference": "Platform rises to full height, but lip does not fully extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Lip assist chain disconnected or broken", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-128", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Platform reaches full height, but the lip does not fully extend", "source_symptom_reference": "Platform rises to full height, but lip does not fully extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Insufficient main spring tension", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-129", "symptom_group": "G3", "symptom_group_name": "Lip will not extend", "plain_language_symptom": "Platform reaches full height, but the lip does not fully extend", "source_symptom_reference": "Platform rises to full height, but lip does not fully extend", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Insufficient lip assist force", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-130", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Platform did not lower during normal walk-down", "source_symptom_reference": "Platform does not lower when operator walks out onto the platform", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Excessive main spring tension", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-131", "symptom_group": "G5", "symptom_group_name": "Will not lower or walk down", "plain_language_symptom": "Platform did not lower during normal walk-down", "source_symptom_reference": "Platform does not lower when operator walks out onto the platform", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Damaged or worn hold-down mechanism", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-132", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip slams down during walk-down", "source_symptom_reference": "Lip folds too fast during normal walk-down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Insufficient lip assist force", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-133", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip slams down during walk-down", "source_symptom_reference": "Lip folds too fast during normal walk-down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Disconnected, worn or broken gas shock", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-134", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck pops back up under the forklift", "source_symptom_reference": "Platform does not stay down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Binding or stuck release chain", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-135", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck pops back up under the forklift", "source_symptom_reference": "Platform does not stay down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Dirt impacted in the ratchet bar teeth", "record_kind": "possible_cause", "source_note": "Poweramp HM prohibits lubricating the ratchet assembly; see printed pp. 25 and 31.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-136", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck pops back up under the forklift", "source_symptom_reference": "Platform does not stay down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Broken or damaged ratchet assembly teeth", "record_kind": "possible_cause", "source_note": "Poweramp HM prohibits lubricating the ratchet assembly; see printed pp. 25 and 31.", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-137", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck pops back up under the forklift", "source_symptom_reference": "Platform does not stay down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Disconnected or broken hold-down pivot pins", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-138", "symptom_group": "G6", "symptom_group_name": "Will not stay down", "plain_language_symptom": "Deck pops back up under the forklift", "source_symptom_reference": "Platform does not stay down", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Damaged or worn hold-down mechanism", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-139", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip stays out after the truck pulls away", "source_symptom_reference": "Lip does not fold after truck departs", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Lip hinge binding due to lack of lubrication", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." }, { "row_id": "DLT-140", "symptom_group": "G4", "symptom_group_name": "Lip will not fold back", "plain_language_symptom": "Lip stays out after the truck pulls away", "source_symptom_reference": "Lip does not fold after truck departs", "applicability_condition": "No additional condition stated in this row", "leveler_type": "Mechanical", "cause_or_note_summary": "Excessive lip assist force", "record_kind": "possible_cause", "source_note": "", "uptime_handoff_guidance": "Report the symptom and applicable manual to trained, authorized service personnel. Do not reach into the mechanism, adjust it, or enter the pit to confirm this possibility.", "guidance_type": "Editorial guidance; not an OSHA classification, diagnosis, or authorization", "evidence_type": "Source-reported; checked in named manufacturer document", "manufacturer": "Poweramp (Systems, LLC)", "source_document": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "-", "document_date": "2018-12", "source_location": "Troubleshooting, printed p. 31; match the symptom heading and numbered entry where present", "printed_page": "31", "pdf_page": "33", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "scope_limit": "Applies only to equipment/configurations covered by the named document. Not a national frequency estimate or an exhaustive diagnosis." } ], "edition_changes": [ { "row_id": "EC-01", "leveler_type": "Mechanical", "symptom_2026": "Deck will not raise", "net_change": "1", "what_changed": "Dropped the locking roller from the hold-down cause and dropped lifting arm cam roller knocked off cam. Added lifting chain may be routed incorrectly and main spring adjustment not adjusted properly", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "5", "entries_2026": "6", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-02", "leveler_type": "Mechanical", "symptom_2026": "The deck does not raise quickly enough to swing the lip up into the fully extended position", "net_change": "0", "what_changed": "Both headings have seven numbered entries. The 2026 list discusses loose brush seals, a person standing on the deck, the snubber chain, and different lubrication points; several older cam/hinge details are absent. Entry counts do not measure failure frequency.", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "7", "entries_2026": "7", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-03", "leveler_type": "Mechanical", "symptom_2026": "The lip does not lock after fully extending", "net_change": "2", "what_changed": "Added foreign object between the spools of the lip and the deck, and lip spool seizing, rusted or damaged", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "3", "entries_2026": "5", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-04", "leveler_type": "Mechanical", "symptom_2026": "The deck will not walk down or is difficult to walk down", "net_change": "3", "what_changed": "The 2026 heading adds difficulty walking down. It adds the engaged dock strut and expanded drag/spring-adjustment notes. Its seven entries include the same damaged-ratchet possibility twice.", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "4", "entries_2026": "7", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-05", "leveler_type": "Mechanical", "symptom_2026": "The deck does not stay down: it springs back up after being walked down", "net_change": "4", "what_changed": "Two numbered entries in the older heading versus six in the newer heading; the newer list distinguishes release-chain, pawl, mounting, obstruction, collar, and ratchet-spring issues. No risk or frequency ranking is inferred.", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "2", "entries_2026": "6", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-06", "leveler_type": "Mechanical", "symptom_2026": "The lip strikes the rear of the truck as the deck raises, stops, or slows down", "net_change": "2", "what_changed": "Added lip actuator assembly damaged causing the lip to extend too early, and lip actuator requires adjustment", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "2", "entries_2026": "4", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-07", "leveler_type": "Mechanical", "symptom_2026": "The lip will not clear the rear of the truck when attendant attempts to park the dock", "net_change": "-1", "what_changed": "Removed lip actuator assembly damaged causing the lip to be held out too late in the cycle", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "5", "entries_2026": "4", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-08", "leveler_type": "Mechanical", "symptom_2026": "The lip does not release or swing down when the truck departs", "net_change": "0", "what_changed": "The older similarly named heading discusses actuator damage/adjustment and lubrication. The newer heading discusses lip-lock seizure, an obstruction holding the lock, and no traffic crossing to release the lock. Some newer wording also resembles the separate older \"lip does not lock\" heading (EC-09); this is not a one-to-one replacement claim.", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "3", "entries_2026": "3", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-09", "leveler_type": "Mechanical", "symptom_2026": "The lip does not lock (listed separately in 2018)", "net_change": "-3", "what_changed": "Three additional entries appear under this separate older heading. They must be included in the older total of 34. There is no separately identical heading in the newer table; related lip-lock wording appears elsewhere.", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 21.0, printed pp. 32–33", "newer_location": "Section 13.0, printed pp. 26–27", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Mechanical Dock Leveler Owner's Manual 038-1083E", "newer_edition": "Rev.1.6, 2026-08-06", "entries_2018": "3", "entries_2026": "0", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-10", "leveler_type": "Hydraulic", "symptom_2026": "Deck will not raise", "net_change": "6", "what_changed": "The single 2018 entry is split into four separate symptoms in the current edition, sorted by what the motor does: motor runs, motor hesitates after a hose change, total silence, and the breaker trips", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 20.0, printed pp. 31–32", "newer_location": "Section 12.0, printed pp. 28–29", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Hydraulic Dock Leveler Owner's Manual 038-1084E", "newer_edition": "Rev.1.7, 2026-08-06", "entries_2018": "6", "entries_2026": "12", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-11", "leveler_type": "Hydraulic", "symptom_2026": "Deck will not lower", "net_change": "1", "what_changed": "Split into two entries by lip position. The 2018 travel-time setting instruction is replaced by a plain statement that the fall-safe velocity fuse is locked closed", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 20.0, printed pp. 31–32", "newer_location": "Section 12.0, printed pp. 28–29", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Hydraulic Dock Leveler Owner's Manual 038-1084E", "newer_edition": "Rev.1.7, 2026-08-06", "entries_2018": "1", "entries_2026": "2", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-12", "leveler_type": "Hydraulic", "symptom_2026": "Deck raises slowly", "net_change": "1", "what_changed": "Split into deck raises partially and stops with the motor still running, and deck raises more slowly than normal with reservoir level normal", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 20.0, printed pp. 31–32", "newer_location": "Section 12.0, printed pp. 28–29", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Hydraulic Dock Leveler Owner's Manual 038-1084E", "newer_edition": "Rev.1.7, 2026-08-06", "entries_2018": "3", "entries_2026": "4", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-13", "leveler_type": "Hydraulic", "symptom_2026": "Lip does not extend fully", "net_change": "-1", "what_changed": "Gained the condition oil level in reservoir is not low. Dropped the sequence valve cause", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 20.0, printed pp. 31–32", "newer_location": "Section 12.0, printed pp. 28–29", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Hydraulic Dock Leveler Owner's Manual 038-1084E", "newer_edition": "Rev.1.7, 2026-08-06", "entries_2018": "4", "entries_2026": "3", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-14", "leveler_type": "Hydraulic", "symptom_2026": "Lip lowers slowly, worse in extreme cold (new entry)", "net_change": "2", "what_changed": "This heading is absent from the compared 2018 hydraulic table. The 2026 owner manual includes a valve-adjustment warning and a gravity/hinge note, conditional on deck lowering speed already being correct. These are notes, not two independent failed components.", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 20.0, printed pp. 31–32", "newer_location": "Section 12.0, printed pp. 28–29", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Hydraulic Dock Leveler Owner's Manual 038-1084E", "newer_edition": "Rev.1.7, 2026-08-06", "entries_2018": "0", "entries_2026": "2", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." }, { "row_id": "EC-15", "leveler_type": "Hydraulic", "symptom_2026": "Deck lowering speed is too slow or too fast", "net_change": "1", "what_changed": "The 2026 owner manual separately lists lowering-speed adjustment. This extra heading completes the 24-entry newer hydraulic table; the older table does not give it a separate heading.", "older_document": "Pit Style Dock Levelers Installation & Technical Manual 038-1073EI", "older_edition": "Rev.1, 2018-08-31", "verified_date": "2026-09-17", "comparison_scope": "2018 installation/technical manual versus 2026 owner manual; different documents, not proof that either applies to a particular installed unit.", "older_source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "newer_source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "older_location": "Section 20.0, printed pp. 31–32", "newer_location": "Section 12.0, printed pp. 28–29", "evidence_type": "Calculated entry counts and editorial comparison of source text", "newer_document": "Hydraulic Dock Leveler Owner's Manual 038-1084E", "newer_edition": "Rev.1.7, 2026-08-06", "entries_2018": "0", "entries_2026": "1", "count_definition": "Numbered entries, including repeated entries and notes; zero means no separately matched heading in this comparison, not absence of that fault in equipment." } ], "terminology_crosswalk": [ { "row_id": "T-01", "what_people_call_it": "the deck, the ramp, the plate", "poweramp_term": "Platform", "what_it_does": "The drive-on surface a forklift crosses", "why_the_name_matters": "These are useful primary search terms within the respective manuals; they are not mutually exclusive vocabulary.", "sources": "038-1083E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Deck", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-02", "what_people_call_it": "the flap, the tongue, the flipper", "poweramp_term": "Lip", "what_it_does": "The hinged plate that bridges onto the trailer bed", "why_the_name_matters": "Both makers agree, so lip is the safe word to use on the phone", "sources": "038-1083E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Lip", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-03", "what_people_call_it": "the safety bar, the prop, the brace", "poweramp_term": "Maintenance Prop", "what_it_does": "A support component for a raised deck, used with the other supports and energy-control measures specified for that equipment.", "why_the_name_matters": "A component name alone does not establish the required support arrangement; the air manual contains differing inspection wording.", "sources": "038-1083E; 038-1084E; 038-1206E; 832-317 decal; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Dock Strut (mechanical/hydraulic); Maintenance Strut (air-powered and shown decals)", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-04", "what_people_call_it": "the second brace", "poweramp_term": "Additional means of support (not automatically a second maintenance prop)", "what_it_does": "A secondary support used with the strut", "why_the_name_matters": "Blue Giant mechanical/hydraulic manuals specify strut plus stand. Air manual sections 6.1 and 6.3 have differing inspection language; do not choose the weaker instruction. Poweramp recommendations are model-specific.", "sources": "038-1083E; 038-1084E; 038-1206E", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Service Stand", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-05", "what_people_call_it": "the catch, the pawl, the ratchet", "poweramp_term": "Hold-Down Mechanism (ratchet bar, ratchet pawl, pawl spring)", "what_it_does": "Keeps a spring-lifted deck from popping back up", "why_the_name_matters": "Record failure to stay down as a symptom rather than guessing which hold-down component failed.", "sources": "038-1083E; 4111-0007", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Ratchet Hold-Down Assembly (ratchet bar, pawl assembly, pawl retainer spring)", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-06", "what_people_call_it": "the pull chain, the release", "poweramp_term": "Platform Release Ring and hold-down release chain", "what_it_does": "What the operator pulls to raise a mechanical leveler", "why_the_name_matters": "Broken or disconnected release components are listed possibilities. Use only already-safe observations; do not expose the mechanism to inspect them.", "sources": "038-1083E; 4111-0007", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Hold-Down Release Ring and ratchet chain assembly", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-07", "what_people_call_it": "the catch legs, the drop stops", "poweramp_term": "Safety Legs", "what_it_does": "Limit how far the deck falls if trailer support is suddenly removed", "why_the_name_matters": "The Blue Giant mechanical manual describes a model-specific stopping function approximately 2.5 inches below dock level. This does not diagnose an unexpected drop.", "sources": "038-1083E", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Fall-Safe legs (mechanical fall-safe option)", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-08", "what_people_call_it": "the pump, the motor, the power unit", "poweramp_term": "Powerpack (Motor/Pump/Reservoir)", "what_it_does": "Raises a hydraulic deck", "why_the_name_matters": "A pump is one component; powerpack names the motor/pump/reservoir assembly. Confirm the actual part before ordering.", "sources": "038-1084E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Hydraulic Powerpack (powerpack, pump, motor, tank)", "source_urls": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-09", "what_people_call_it": "the thing that locks it up", "poweramp_term": "Velocity Fuse", "what_it_does": "Restricts rapid descent in the hydraulic system described by the applicable manual.", "why_the_name_matters": "A fuse may be closed or faulty. A stopped platform does not establish that the fuse is functioning correctly.", "sources": "038-1084E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Fall-safe velocity fuse (part # 033-661)", "source_urls": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-10", "what_people_call_it": "the little catches at the front", "poweramp_term": "Lip Keepers", "what_it_does": "Where the folded lip rests when the leveler is parked", "why_the_name_matters": "Agreed term across both makers", "sources": "038-1083E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Lip Keepers", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-11", "what_people_call_it": "the night lock", "poweramp_term": "Cross-traffic position", "what_it_does": "Night lock refers to the storage support/keeper context; cross-traffic position names the stored platform position.", "why_the_name_matters": "These terms are related, not interchangeable part names.", "sources": "038-1084E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Night lock", "source_urls": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-12", "what_people_call_it": "the guard plates at the sides", "poweramp_term": "Toe Guards", "what_it_does": "Close the side gap as the deck moves", "why_the_name_matters": "Guard type and coverage depend on the unit and its options; do not infer protection from the generic part name.", "sources": "038-1083E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Toe Guards", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-13", "what_people_call_it": "the rubber blocks on the dock face", "poweramp_term": "Dock Bumpers", "what_it_does": "Stop the trailer before it reaches the building or the lip", "why_the_name_matters": "Damaged or missing bumpers are listed under no-rise, lip-contact and parking symptoms. Check the applicable model rather than assuming one bumper type fits every dock.", "sources": "038-1083E; 038-1206E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Laminated Bumpers", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-14", "what_people_call_it": "the spring that flips the lip out", "poweramp_term": "Lip Assist Spring, Lip (Snubber) Spring, Lip Banger", "what_it_does": "These are different lip-extension components, not synonyms for one spring.", "why_the_name_matters": "In the Poweramp HM component diagram the lip banger, lip assist spring and snubber spring are separately identified.", "sources": "038-1083E; 4111-0007", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Lip Activating Spring and Lip Assist Spring", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-15", "what_people_call_it": "the big springs underneath", "poweramp_term": "Lift (Main) Spring Assembly", "what_it_does": "Raise a mechanical deck", "why_the_name_matters": "Stored spring energy is a servicing hazard; a generic adjustment instruction is not an equipment-specific procedure.", "sources": "038-1083E decal 038-1037EFS; 4111-0007 decal 1751-0728", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Main Spring / lift springs", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-16", "what_people_call_it": "the air bladder", "poweramp_term": "Not compared: Poweramp air manual is outside this matrix", "what_it_does": "A blower inflates it to lift the deck", "why_the_name_matters": "The bag, blower coupling and intake are distinct things to report to authorized service personnel.", "sources": "038-1206E", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Air bag", "source_urls": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-17", "what_people_call_it": "the sensor that stores it by itself", "poweramp_term": "Auto Return To Dock (ARTD) proximity switch and target", "what_it_does": "Blue Giant home sensing supports equipment interlocks; Poweramp ARTD sensing supports the optional automatic-return function.", "why_the_name_matters": "Related position-sensing devices can have different control jobs. A home sensor does not by itself establish automatic-return capability.", "sources": "038-1083E; 038-1084E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Home Interlock Sensor (part # 026-G019)", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-18", "what_people_call_it": "the valves on the pump", "poweramp_term": "RV1 main relief, S1 and S2 sequence valves, NV1 needle valve", "what_it_does": "Set system pressure, lip timing and lowering speed", "why_the_name_matters": "Valve names identify the relevant manual section; they do not establish which component caused a particular fault.", "sources": "038-1084E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Relief Valve, Sequence Valve, Flow Control Valve, Check Valve, Lip Solenoid", "source_urls": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-19", "what_people_call_it": "stump-out", "poweramp_term": "Not used as a symptom heading in the selected Poweramp tables", "what_it_does": "Terminology warning: manufacturers also use stump-out in product descriptions; it is not restricted to dealer slang.", "why_the_name_matters": "Kelley uses stump-out on its aFX product page. Describe the actual movement rather than using the term as a diagnosis.", "sources": "KELLEY-TERM", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Not used as a symptom heading in the selected Blue Giant tables", "source_urls": "https://www.kelleydocksolutions.com/products/dock-levelers/air-powered-dock-levelers/afx-air-powered-dock-leveler", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-20", "what_people_call_it": "the tag, the plate with the numbers", "poweramp_term": "Model and serial number decal on the left platform joist near the lip", "what_it_does": "Equipment identity and rating information; the exact fields depend on the manufacturer and unit.", "why_the_name_matters": "Use records or a safely accessible plate. Do not enter the pit or raise failed equipment to photograph it.", "sources": "038-1083E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Serial Plate Decal (038-1082EF)", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-21", "what_people_call_it": "end loading, below-dock loading", "poweramp_term": "Below Dock Endloading", "what_it_does": "Working the leveler below dock height to reach freight at the trailer door", "why_the_name_matters": "Normal loading and endloading have different model-specific sequences. Report the mode in use when the fault occurred; do not try another sequence as a workaround.", "sources": "038-1083E; 038-1084E; 4111-0004", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Below Level / End Loading", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." }, { "row_id": "T-22", "what_people_call_it": "the cover plate", "poweramp_term": "No one-to-one equivalent established", "what_it_does": "A cover plate identified in the Blue Giant mechanical component list.", "why_the_name_matters": "The Blue Giant maintenance checklist refers to lubrication beneath part 2002286. This is not permission to lubricate a Poweramp ratchet assembly.", "sources": "038-1083E", "verified_date": "2026-09-17", "blue_giant_term_in_cited_edition": "Cover Plate (part # 2002286) with a lubrication point beneath it", "source_urls": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "evidence_type": "Source-reported terminology; explanations and cross-brand limitations are editorial", "source_scope": "Named document editions in the manual index; nomenclature is not a parts-compatibility claim." } ], "authority_gate": [ { "row_id": "SG-01", "task_at_the_leveler": "Looking at the leveler from the dock floor while it is parked", "regulatory_scope": "Observation from a safe location, without exposure to unexpected movement or hazardous energy, does not itself establish covered servicing.", "uptime_guidance": "Record what is already visible. Do not enter the pit, raise the deck or remove a guard to obtain information.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-02", "task_at_the_leveler": "Taking a pallet or a load off the top of the deck", "regulatory_scope": "1910.147 applicability depends on the servicing task, hazardous-energy exposure and applicable exclusions/exceptions; a fault description alone does not decide it.", "uptime_guidance": "A load or trailer-position problem is not blanket permission to move it. Keep people off failed equipment; the responsible supervisor must plan any unloading or trailer movement safely.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-03", "task_at_the_leveler": "Repositioning or refusing a trailer because the lip is fouling it", "regulatory_scope": "1910.147 applicability depends on the servicing task, hazardous-energy exposure and applicable exclusions/exceptions; a fault description alone does not decide it.", "uptime_guidance": "A load or trailer-position problem is not blanket permission to move it. Keep people off failed equipment; the responsible supervisor must plan any unloading or trailer movement safely.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-04", "task_at_the_leveler": "Sweeping debris out of the lip hinge or the pit", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-05", "task_at_the_leveler": "Clearing something jammed between the deck and the pit wall", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-06", "task_at_the_leveler": "Greasing the lip hinge, the platform hinge or the arm points", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-07", "task_at_the_leveler": "Inspecting under the raised deck", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Blue Giant mechanical/hydraulic: strut plus stand. Air 6.1 distinguishes limited inspection/cleaning, but 6.3 and troubleshooting require both; obtain clarification, not a weaker support shortcut.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-08", "task_at_the_leveler": "Any under-deck work beyond cleaning or looking", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-09", "task_at_the_leveler": "Working under an air-powered leveler rated 10,000 lb or more, or with a deck longer than 108 in.", "regulatory_scope": "This is a model/edition-specific manufacturer support instruction, not an OSHA capacity threshold.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Blue Giant air 038-1206E Rev.1.4, section 6.3 p.15: rated capacity at least 10,000 lb OR deck longer than 108 in calls for a second strut or second stand. Resolve conflicting support descriptions with the manufacturer for the unit.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "038-1206E; OSHA-147", "source_urls": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-10", "task_at_the_leveler": "Adjusting main lift spring tension", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-11", "task_at_the_leveler": "Removing or replacing main lift springs", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-12", "task_at_the_leveler": "Adjusting a relief, sequence, flow-control or needle valve", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-13", "task_at_the_leveler": "Opening the control panel, or resetting an overload relay", "regulatory_scope": "Electrical exposures are addressed by 1910 Subpart S, including 1910.333; other machine-energy hazards can also require 1910.147 controls.", "uptime_guidance": "Use personnel trained/qualified for the electrical work and the applicable deenergizing, verification and lockout procedure; do not open panels or repeat resets as a generic troubleshooting step.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-333; OSHA-147; 4111-0004", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.333 | https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-14", "task_at_the_leveler": "Electrical installation, disconnect or final connection work", "regulatory_scope": "Electrical exposures are addressed by 1910 Subpart S, including 1910.333; other machine-energy hazards can also require 1910.147 controls.", "uptime_guidance": "Use personnel trained/qualified for the electrical work and the applicable deenergizing, verification and lockout procedure; do not open panels or repeat resets as a generic troubleshooting step.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-333; OSHA-147; 4111-0004", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.333 | https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-15", "task_at_the_leveler": "Entering the pit for any reason", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-16", "task_at_the_leveler": "Cleaning the ratchet bar and pawl on a mechanical hold-down", "regulatory_scope": "Cleaning, unjamming, inspection, adjustment or maintenance can be covered where unexpected energization/start-up or stored-energy release could cause injury; employer procedures and applicability must be assessed for the actual task.", "uptime_guidance": "Trained, authorized service personnel must use the employer energy-control procedure and equipment-specific support instructions. No procedure is provided here.", "model_specific_support_note": "Poweramp HM 4111-0007 printed pp.25,31 prohibits grease/oil on the ratchet bar/cam and lubrication of the ratchet assembly; other specified pivot lubrication is distinct.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-17", "task_at_the_leveler": "Pressing the stop button, or switching the control station off, and calling that isolation", "regulatory_scope": "1910.147(b) excludes pushbuttons, selector switches and control-circuit devices from the definition of an energy-isolating device.", "uptime_guidance": "A control stop is not proof of safe isolation. Authorized personnel must address all relevant energy sources and verify the required state.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; OSHA-333", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.333", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-18", "task_at_the_leveler": "Putting a load on the deck to hold a popping leveler down", "regulatory_scope": "Manufacturer stop-use instructions, not a legal classification of a fault.", "uptime_guidance": "Do not use a load or the overhead door to hold down a malfunctioning leveler. Keep it out of service.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-147; 038-1083E; 038-1084E; 038-1206E; 4111-0004; 4111-0007", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147 | https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us | https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us | https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf | https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" }, { "row_id": "SG-19", "task_at_the_leveler": "Bridging a failed leveler with a plate or dock board to keep loading", "regulatory_scope": "1910.21(b) includes dock levelers in dockboards; 1910.26 addresses load, movement and run-off protection, including the paragraph (b)(2) exception.", "uptime_guidance": "Do not improvise a crossing over failed equipment. Any alternative requires its own suitable equipment, supports and safety assessment; keep the unsafe bay out of use.", "model_specific_support_note": "Use the applicable model/manual; support arrangement and crew size are not universal.", "personnel_note": "Assigned competence, authorization and crew size must fit the actual task; no universal two-person OSHA rule is claimed.", "sources": "OSHA-21; OSHA-22; OSHA-26", "source_urls": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.21 | https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.22 | https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.26", "verified_date": "2026-09-17", "evidence_type": "Rule/OEM facts plus explicitly editorial task guidance; not an OSHA ruling on an individual job" } ], "manual_index": [ { "row_id": "M-01", "manufacturer": "Blue Giant", "document_title": "Mechanical Dock Leveler Owner's Manual", "document_number": "038-1083E", "revision": "1.6", "issue_date": "2026-08-06", "access": "Public", "troubleshooting_section": "Sec 13.0", "printed_pages": "26-27", "symptoms_listed": "8", "source_url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "note": "Published edition verified at the manufacturer URL; match the equipment model, serial applicability and installed options. Not a claim that this is the newest or applicable edition for every unit.", "entries_in_matrix": "42", "verification_scope": "Cover, relevant troubleshooting section and cited supporting passages checked; site-wide latest-edition inventory not established." }, { "row_id": "M-02", "manufacturer": "Blue Giant", "document_title": "Hydraulic Dock Leveler Owner's Manual", "document_number": "038-1084E", "revision": "1.7", "issue_date": "2026-08-06", "access": "Public", "troubleshooting_section": "Sec 12.0", "printed_pages": "28-29", "symptoms_listed": "11", "source_url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "note": "Published edition verified at the manufacturer URL; match the equipment model, serial applicability and installed options. Not a claim that this is the newest or applicable edition for every unit.", "entries_in_matrix": "24", "verification_scope": "Cover, relevant troubleshooting section and cited supporting passages checked; site-wide latest-edition inventory not established." }, { "row_id": "M-03", "manufacturer": "Blue Giant", "document_title": "Air-Powered Dock Leveler Owner's Manual", "document_number": "038-1206E", "revision": "1.4", "issue_date": "2026-08-06", "access": "Public", "troubleshooting_section": "Sec 13.0", "printed_pages": "45-46", "symptoms_listed": "6", "source_url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "note": "Published edition verified at the manufacturer URL; match the equipment model, serial applicability and installed options. Not a claim that this is the newest or applicable edition for every unit. Differing support wording within this document is described in the article.", "entries_in_matrix": "26", "verification_scope": "Cover, relevant troubleshooting section and cited supporting passages checked; site-wide latest-edition inventory not established." }, { "row_id": "M-08", "manufacturer": "Poweramp (Systems, LLC)", "document_title": "EH Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0004", "revision": "n/a", "issue_date": "2021-04", "access": "Public", "troubleshooting_section": "Troubleshooting", "printed_pages": "42-45", "symptoms_listed": "14", "source_url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "note": "Published edition verified at the manufacturer URL; match the equipment model, serial applicability and installed options. Not a claim that this is the newest or applicable edition for every unit.", "entries_in_matrix": "27", "verification_scope": "Cover, relevant troubleshooting section and cited supporting passages checked; site-wide latest-edition inventory not established." }, { "row_id": "M-09", "manufacturer": "Poweramp (Systems, LLC)", "document_title": "HM Series Dock Leveler Owner's/User's Manual", "document_number": "4111-0007", "revision": "n/a", "issue_date": "2018-12", "access": "Public", "troubleshooting_section": "Troubleshooting", "printed_pages": "30-31", "symptoms_listed": "7", "source_url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "note": "Published edition verified at the manufacturer URL; match the equipment model, serial applicability and installed options. Not a claim that this is the newest or applicable edition for every unit.", "entries_in_matrix": "21", "verification_scope": "Cover, relevant troubleshooting section and cited supporting passages checked; site-wide latest-edition inventory not established." }, { "row_id": "M-HIST", "manufacturer": "Blue Giant", "document_title": "Pit Style Dock Levelers Installation & Technical Manual", "document_number": "038-1073EI", "revision": "1", "issue_date": "2018-08-31", "access": "Manufacturer-authored historical PDF hosted by a third-party dealer", "troubleshooting_section": "20.0 hydraulic; 21.0 mechanical", "printed_pages": "31–33", "symptoms_listed": "4 hydraulic; 9 mechanical", "source_url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "verified_date": "2026-09-17", "note": "Historical comparison only. Different document from the 2026 owner manuals, not a verified direct revision chain.", "entries_in_matrix": "0", "verification_scope": "Historical table text checked; not an issuer-hosted current-operation source." } ], "sources": [ { "source_key": "038-1083E", "publisher": "Blue Giant Equipment Corporation", "document": "Mechanical Dock Leveler Owner's Manual", "edition_or_date": "Rev.1.6; 2026-08-06", "source_class": "Manufacturer document hosted by issuer", "url": "https://www.bluegiant.com/getattachment/9195bfdf-7bd5-47e8-9407-03e5f650be00/038-1083E_Mechanical_Dock_Leveler_Owner_Rev.1.6_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "verification_scope": "Named edition and relevant claims checked; no field validation or universal latest-edition claim.", "source_location": "Troubleshooting pp.26–27; support p.9; maintenance pp.10–12; operation pp.13–15; decals p.17; components pp.18–25", "verification_method": "Text checked; screenshots used where available" }, { "source_key": "038-1084E", "publisher": "Blue Giant Equipment Corporation", "document": "Hydraulic Dock Leveler Owner's Manual", "edition_or_date": "Rev.1.7; 2026-08-06", "source_class": "Manufacturer document hosted by issuer", "url": "https://www.bluegiant.com/getattachment/e7fb5e93-b859-48a5-ba9f-6c76e0f6fb81/038-1084E_Hydraulic_Dock_Leveler_Owner_Rev.1.7_6-Aug-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "verification_scope": "Named edition and relevant claims checked; no field validation or universal latest-edition claim.", "source_location": "Troubleshooting pp.28–29; support p.10; oils p.11; operation pp.13–15; interlock p.30", "verification_method": "Text checked; screenshots used where available" }, { "source_key": "038-1206E", "publisher": "Blue Giant Equipment Corporation", "document": "Air-Powered Dock Leveler Owner's Manual", "edition_or_date": "Rev.1.4; 2026-08-06", "source_class": "Manufacturer document hosted by issuer", "url": "https://www.bluegiant.com/getattachment/0e74a99e-83ea-4d54-b30e-1a41401bee3f/038-1206E_Air-Powered_Dock_Leveler_Owner_Rev.1.4_6-AUG-2026.pdf?ext=.pdf&lang=en-us", "verified_date": "2026-09-17", "verification_scope": "Named edition and relevant claims checked; no field validation or universal latest-edition claim.", "source_location": "Troubleshooting pp.45–46; support sections6.1–6.3 pp.13–16; parts p.34; sample wiring p.56", "verification_method": "Text checked; screenshots used where available" }, { "source_key": "4111-0004", "publisher": "Poweramp / Systems, LLC", "document": "EH Series Owner's/User's Manual", "edition_or_date": "April2021", "source_class": "Manufacturer document hosted by issuer", "url": "https://www.poweramp.com/files/2021-10/P_EH_4111-0004_Apr%202021.pdf", "verified_date": "2026-09-17", "verification_scope": "Named edition and relevant claims checked; no field validation or universal latest-edition claim.", "source_location": "Troubleshooting pp.42–45; support pp.29,42; oils pp.30–31; operation p.24; ARTD pp.38–40", "verification_method": "Text checked; screenshots used where available" }, { "source_key": "4111-0007", "publisher": "Poweramp / Systems, LLC", "document": "HM Series Owner's/User's Manual", "edition_or_date": "December2018", "source_class": "Manufacturer document hosted by issuer", "url": "https://www.poweramp.com/files/P_HM_4111-0007_Dec2018.pdf", "verified_date": "2026-09-17", "verification_scope": "Named edition and relevant claims checked; no field validation or universal latest-edition claim.", "source_location": "Troubleshooting pp.30–31; ratchet warning pp.25,31; components p.9; operation p.21", "verification_method": "Text checked; screenshots used where available" }, { "source_key": "038-1073EI", "publisher": "Blue Giant Equipment Corporation", "document": "Pit Style Dock Levelers Installation & Technical Manual", "edition_or_date": "Rev.1; 2018-08-31", "source_class": "Manufacturer-authored document hosted by Door Doctor", "url": "https://doordoctor.com/images/PDF/Mechanical_Dock_Leveler_Installation_Manual_EN.pdf", "verified_date": "2026-09-17", "verification_scope": "Historical reference text only; not authenticated as a current issuer-hosted operating manual.", "source_location": "Sections20.0–21.0 pp.31–33", "verification_method": "Readable PDF text checked; page-image fetch attempts failed" }, { "source_key": "OSHA-147", "publisher": "U.S. Occupational Safety and Health Administration", "document": "The control of hazardous energy", "edition_or_date": "Federal text checked 2026-09-17", "source_class": "Federal regulation", "url": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.147", "verified_date": "2026-09-17", "verification_scope": "Federal general-industry context; task/exposure and jurisdiction limits retained.", "source_location": "1910.147(a)(1), (a)(2), (b), (c)(1), (c)(7)", "verification_method": "Official OSHA text retrieved through web search/browser" }, { "source_key": "OSHA-21", "publisher": "U.S. Occupational Safety and Health Administration", "document": "Scope and definitions", "edition_or_date": "Federal text checked 2026-09-17", "source_class": "Federal regulation", "url": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.21", "verified_date": "2026-09-17", "verification_scope": "Federal general-industry context; task/exposure and jurisdiction limits retained.", "source_location": "1910.21(b), definition of dockboard", "verification_method": "Official OSHA text retrieved through web search/browser" }, { "source_key": "OSHA-22", "publisher": "U.S. Occupational Safety and Health Administration", "document": "General requirements", "edition_or_date": "Federal text checked 2026-09-17", "source_class": "Federal regulation", "url": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.22", "verified_date": "2026-09-17", "verification_scope": "Federal general-industry context; task/exposure and jurisdiction limits retained.", "source_location": "1910.22(d)(1)–(3)", "verification_method": "Official OSHA text retrieved through web search/browser" }, { "source_key": "OSHA-26", "publisher": "U.S. Occupational Safety and Health Administration", "document": "Dockboards", "edition_or_date": "Federal text checked 2026-09-17", "source_class": "Federal regulation", "url": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.26", "verified_date": "2026-09-17", "verification_scope": "Federal general-industry context; task/exposure and jurisdiction limits retained.", "source_location": "1910.26(a)–(e), including (b)(2)", "verification_method": "Official OSHA text retrieved through web search/browser" }, { "source_key": "OSHA-333", "publisher": "U.S. Occupational Safety and Health Administration", "document": "Electrical work practices", "edition_or_date": "Federal text checked 2026-09-17", "source_class": "Federal regulation", "url": "https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.333", "verified_date": "2026-09-17", "verification_scope": "Federal general-industry context; task/exposure and jurisdiction limits retained.", "source_location": "1910.333(a), (b)(2)(ii)(B), (b)(2)(iv), (c)(2)", "verification_method": "Official OSHA text retrieved through web search/browser" }, { "source_key": "ANSI-MH301", "publisher": "ANSI / MHI", "document": "ANSI MH30.1-2022: Performance and Testing Requirements for Dock Leveling Devices", "edition_or_date": "2022", "source_class": "Standards issuer/seller listing", "url": "https://webstore.ansi.org/standards/mhia/ansimh302022", "verified_date": "2026-09-17", "verification_scope": "Title, identifier and listing scope only. Full paid text not read.", "source_location": "Catalog listing", "verification_method": "Listing text only" }, { "source_key": "BG-LIB", "publisher": "Blue Giant Equipment Corporation", "document": "Document Library", "edition_or_date": "Accessed 2026-09-17", "source_class": "Manufacturer resource directory", "url": "https://www.bluegiant.com/en/resources/document-library/", "verified_date": "2026-09-17", "verification_scope": "Directory located; not a complete latest-revision/access-status audit.", "source_location": "Directory", "verification_method": "Web directory text" }, { "source_key": "KELLEY-TERM", "publisher": "Kelley", "document": "aFX Air-Powered Dock Leveler", "edition_or_date": "Web page checked 2026-09-17", "source_class": "Manufacturer product description", "url": "https://www.kelleydocksolutions.com/products/dock-levelers/air-powered-dock-levelers/afx-air-powered-dock-leveler", "verified_date": "2026-09-17", "verification_scope": "Confirms manufacturer use of the word stump-out; no performance/warranty claim adopted.", "source_location": "Opening product description", "verification_method": "Issuer page text" }, { "source_key": "BG-CONTROLS", "publisher": "Blue Giant Equipment Corporation", "document": "Loading Dock Touch Controls", "edition_or_date": "Web page checked 2026-09-17", "source_class": "Manufacturer product directory", "url": "https://www.bluegiant.com/en/products/dock-equipment/touch-controls/", "verified_date": "2026-09-17", "verification_scope": "Identifies control families; not a model-specific reset or wiring procedure.", "source_location": "Touch controls list", "verification_method": "Issuer page text" } ], "onpage_crosswalk": [ { "table_id": "FT-01", "visible_row": "1", "observation": "Motor runs, deck stays put", "visible_cause_or_note_summary": "Foreign material lodged between the side of the deck and the pit wall", "matrix_row_ids": "DLT-001", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "2", "observation": "Motor runs, deck stays put", "visible_cause_or_note_summary": "Bumpers damaged or missing, letting the truck contact and hold the lip", "matrix_row_ids": "DLT-002", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "3", "observation": "Motor runs, deck stays put", "visible_cause_or_note_summary": "Equipment or goods parked on the leveler", "matrix_row_ids": "DLT-003", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "4", "observation": "Motor runs, deck stays put", "visible_cause_or_note_summary": "Low hydraulic oil in power unit", "matrix_row_ids": "DLT-004", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "5", "observation": "Motor runs, deck stays put", "visible_cause_or_note_summary": "Incorrect motor rotation", "matrix_row_ids": "DLT-005", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "6", "observation": "Motor runs, deck stays put", "visible_cause_or_note_summary": "Relief valve is bypassing", "matrix_row_ids": "DLT-006", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "7", "observation": "Motor runs, deck stays put", "visible_cause_or_note_summary": "Pilot-operated check valve will not close", "matrix_row_ids": "DLT-007", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "8", "observation": "Deck hesitates, then lifts", "visible_cause_or_note_summary": "Air trapped in the deck lifting cylinder. *Usually occurs only after the deck cylinder hose has been replaced with a hose that was not pre-filled with oil.*", "matrix_row_ids": "DLT-008", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "9", "observation": "Total silence", "visible_cause_or_note_summary": "No power supply to control box", "matrix_row_ids": "DLT-009", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "10", "observation": "Total silence", "visible_cause_or_note_summary": "Thermal overload tripped open", "matrix_row_ids": "DLT-010", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "11", "observation": "Total silence", "visible_cause_or_note_summary": "Faulty control box component — fuse, touch button, contactor or transformer", "matrix_row_ids": "DLT-011", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "12", "observation": "Breaker trips", "visible_cause_or_note_summary": "The branch circuit is overloaded by other equipment; the circuit may not meet the power unit's requirements", "matrix_row_ids": "DLT-012", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "13", "observation": "Motor hums, won't turn", "visible_cause_or_note_summary": "No voltage on one line — the motor is \"single-phased\"", "matrix_row_ids": "DLT-095", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "14", "observation": "Motor runs backwards", "visible_cause_or_note_summary": "Phase reversed", "matrix_row_ids": "DLT-096", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "15", "observation": "Motor energizes but does not run", "visible_cause_or_note_summary": "Line voltage too low / faulty centrifugal switch / faulty capacitor", "matrix_row_ids": "DLT-097, DLT-098, DLT-099", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-01", "visible_row": "16", "observation": "Platform does not rise; the manual describes pump pressure-relief operation", "visible_cause_or_note_summary": "Heavy object on platform; leveler binds; pressure relief set too low", "matrix_row_ids": "DLT-103, DLT-104, DLT-105", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "1", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Hold-down mechanism is not releasing; release chain or handle jammed or broken", "matrix_row_ids": "DLT-025", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "2", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Foreign materials lodged between the side of the deck and the pit wall", "matrix_row_ids": "DLT-026", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "3", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Bumpers damaged or missing, letting the truck hold the lip", "matrix_row_ids": "DLT-027", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "4", "observation": "Chain does nothing", "visible_cause_or_note_summary": "The lifting chain may be routed incorrectly", "matrix_row_ids": "DLT-028", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "5", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Missing or broken spring(s)", "matrix_row_ids": "DLT-029", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "6", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Main spring adjustment not adjusted properly", "matrix_row_ids": "DLT-030", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "7", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Heavy object on platform — the leveler lifts only its own weight", "matrix_row_ids": "DLT-120", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "8", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Disconnected or broken release chain", "matrix_row_ids": "DLT-121", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-02", "visible_row": "9", "observation": "Chain does nothing", "visible_cause_or_note_summary": "Dock leveler binds — possible obstruction", "matrix_row_ids": "DLT-122", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "1", "observation": "Climbs partway, stops, motor keeps running and the unit is louder than usual", "visible_cause_or_note_summary": "Oil level in reservoir is low", "matrix_row_ids": "DLT-019", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "2", "observation": "Slower than it used to be, reservoir level normal", "visible_cause_or_note_summary": "Deck or damaged skirts dragging on the side of the pit", "matrix_row_ids": "DLT-020", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "3", "observation": "Slower than it used to be, reservoir level normal", "visible_cause_or_note_summary": "Pilot-operated check valve will not close", "matrix_row_ids": "DLT-021", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "4", "observation": "Slower than it used to be, reservoir level normal", "visible_cause_or_note_summary": "Faulty powerpack", "matrix_row_ids": "DLT-022", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "5", "observation": "Rises slowly", "visible_cause_or_note_summary": "Low fluid / contaminated system / damaged or blocked hose or valve / relief set too low", "matrix_row_ids": "DLT-106, DLT-107, DLT-108, DLT-109", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "6", "observation": "Motor bogs down at the top", "visible_cause_or_note_summary": "Pressure relief set too high", "matrix_row_ids": "DLT-110", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "7", "observation": "Stops short of full height", "visible_cause_or_note_summary": "Low hydraulic fluid", "matrix_row_ids": "DLT-111", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "8", "observation": "Hard pull, deck barely lifts", "visible_cause_or_note_summary": "Heavy object on platform", "matrix_row_ids": "DLT-123", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "9", "observation": "Hard pull, deck barely lifts", "visible_cause_or_note_summary": "Leveler binds", "matrix_row_ids": "DLT-124", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "10", "observation": "Hard pull, deck barely lifts", "visible_cause_or_note_summary": "Insufficient main spring tension", "matrix_row_ids": "DLT-125", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "11", "observation": "Hard pull, deck barely lifts", "visible_cause_or_note_summary": "Damaged or worn hold-down mechanism", "matrix_row_ids": "DLT-126", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "12", "observation": "Too slow for the lip to swing out", "visible_cause_or_note_summary": "Deck dragging on the pit side; debris at the pit wall; side brush seals coming loose; lack of lubrication at the front and rear hinges and the four points on the arm; **someone standing on the deck**; a snubber-chain inspection prompt; lift-spring adjustment is considered only after the other listed causes", "matrix_row_ids": "DLT-031, DLT-032, DLT-033, DLT-034, DLT-035, DLT-036, DLT-037", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-03", "visible_row": "13", "observation": "Lifts slowly", "visible_cause_or_note_summary": "Damaged bag; cargo on the deck; blocked blower intake; blower uncoupled from the bag; inadequate voltage", "matrix_row_ids": "DLT-076, DLT-077, DLT-078, DLT-079, DLT-080", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "1", "observation": "Lip doesn't swing fully out *(and reservoir level is not low)*", "visible_cause_or_note_summary": "Lip plate bent, causing the hinge to bind", "matrix_row_ids": "DLT-013", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "2", "observation": "Lip doesn't swing fully out *(and reservoir level is not low)*", "visible_cause_or_note_summary": "Foreign material lodged in the lip hinge area", "matrix_row_ids": "DLT-014", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "3", "observation": "Lip doesn't swing fully out *(and reservoir level is not low)*", "visible_cause_or_note_summary": "Relief valve is bypassing", "matrix_row_ids": "DLT-015", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "4", "observation": "Deck reaches full height, lip doesn't extend", "visible_cause_or_note_summary": "Low hydraulic fluid", "matrix_row_ids": "DLT-113", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "5", "observation": "Deck reaches full height, lip doesn't extend", "visible_cause_or_note_summary": "S2 sequence valve requires adjustment", "matrix_row_ids": "DLT-114", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "6", "observation": "Lip flips out early, before the deck is up", "visible_cause_or_note_summary": "S2 sequence valve requires adjustment", "matrix_row_ids": "DLT-116", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "7", "observation": "Lip drops back before the deck reaches the trailer", "visible_cause_or_note_summary": "S1 sequence valve requires adjustment", "matrix_row_ids": "DLT-112", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "8", "observation": "Lip swings out then falls straight back", "visible_cause_or_note_summary": "Lip lock not engaging — spring broken or stretched, or the lock has seized", "matrix_row_ids": "DLT-038", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "9", "observation": "Lip swings out then falls straight back", "visible_cause_or_note_summary": "Lip actuator bent or broken", "matrix_row_ids": "DLT-039", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "10", "observation": "Lip swings out then falls straight back", "visible_cause_or_note_summary": "Foreign material in the lip lock mechanism", "matrix_row_ids": "DLT-040", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "11", "observation": "Lip swings out then falls straight back", "visible_cause_or_note_summary": "Foreign object between the spools of the lip and the deck", "matrix_row_ids": "DLT-041", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "12", "observation": "Lip swings out then falls straight back", "visible_cause_or_note_summary": "Lip spool seizing, rusted or damaged", "matrix_row_ids": "DLT-042", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "13", "observation": "Deck rises, lip stays hanging", "visible_cause_or_note_summary": "Lip assist chain disconnected or broken", "matrix_row_ids": "DLT-127", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "14", "observation": "Deck rises, lip stays hanging", "visible_cause_or_note_summary": "Insufficient main spring tension, or insufficient lip assist force", "matrix_row_ids": "DLT-128, DLT-129", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "15", "observation": "Lip stays hanging", "visible_cause_or_note_summary": "Debris in the lip hinge", "matrix_row_ids": "DLT-081", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "16", "observation": "Lip stays hanging", "visible_cause_or_note_summary": "Lip deployment mechanism damaged", "matrix_row_ids": "DLT-082", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "17", "observation": "Lip stays hanging", "visible_cause_or_note_summary": "Damaged air bag, or blower uncoupled from the bag", "matrix_row_ids": "DLT-083, DLT-084", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-04", "visible_row": "18", "observation": "Lip stays hanging", "visible_cause_or_note_summary": "Incorrect voltage relative to blower motor voltage", "matrix_row_ids": "DLT-085", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "1", "observation": "Lip stays out after the truck leaves", "visible_cause_or_note_summary": "Lip lock seized from lack of lubrication, or foreign material in the pit", "matrix_row_ids": "DLT-064", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "2", "observation": "Lip stays out after the truck leaves", "visible_cause_or_note_summary": "Lip lock held in the locked position by foreign material in the pit", "matrix_row_ids": "DLT-065", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "3", "observation": "Lip stays out after the truck leaves", "visible_cause_or_note_summary": "**No traffic has crossed the deck to break the lip lock**", "matrix_row_ids": "DLT-066", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "4", "observation": "Lip stays out after the truck leaves", "visible_cause_or_note_summary": "Lip hinge binding due to lack of lubrication", "matrix_row_ids": "DLT-139", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "5", "observation": "Lip stays out after the truck leaves", "visible_cause_or_note_summary": "Excessive lip assist force", "matrix_row_ids": "DLT-140", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "6", "observation": "Lip stuck out, won't come back in", "visible_cause_or_note_summary": "Lip bent or damaged; deployment mechanism damaged; debris in the lip hinge", "matrix_row_ids": "DLT-086, DLT-087, DLT-088", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "7", "observation": "Lip slams down during walk-down", "visible_cause_or_note_summary": "Insufficient lip assist force", "matrix_row_ids": "DLT-132", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "8", "observation": "Lip slams down during walk-down", "visible_cause_or_note_summary": "Disconnected, worn or broken gas shock", "matrix_row_ids": "DLT-133", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "9", "observation": "Lip lowers slowly, worse in extreme cold; **deck lowering speed is already correct**", "visible_cause_or_note_summary": "**A valve adjustment will not correct this problem.** Opening the needle valve will cause the deck to lower too quickly, which will in turn cause the fail-safe velocity fuse to lock", "matrix_row_ids": "DLT-016", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-05", "visible_row": "10", "observation": "Lip lowers slowly, worse in extreme cold; **deck lowering speed is already correct**", "visible_cause_or_note_summary": "The lip lowers by gravity and must pivot freely on its full-length hinge", "matrix_row_ids": "DLT-017", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "1", "observation": "Stuck up, lip does lower", "visible_cause_or_note_summary": "The fall-safe velocity fuse at the bottom of the deck cylinder is in the locked or closed position", "matrix_row_ids": "DLT-023", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "2", "observation": "Stuck up with the lip extended, lip does lower", "visible_cause_or_note_summary": "Same — velocity fuse locked closed", "matrix_row_ids": "DLT-024", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "3", "observation": "Comes down too fast or too slowly", "visible_cause_or_note_summary": "Lowering speed adjustment required", "matrix_row_ids": "DLT-018", "source_keys": "038-1084E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "4", "observation": "Drops, then catches hard partway down", "visible_cause_or_note_summary": "Lowering speed too fast — needle valve adjustment; faulty velocity fuse; incorrect or aged hydraulic fluid", "matrix_row_ids": "DLT-117, DLT-118, DLT-119", "source_keys": "4111-0004", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "5", "observation": "Won't come down", "visible_cause_or_note_summary": "Debris accumulated under the platform", "matrix_row_ids": "DLT-073", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "6", "observation": "Won't come down", "visible_cause_or_note_summary": "**Maintenance stand may still be engaged**", "matrix_row_ids": "DLT-074", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "7", "observation": "Won't come down", "visible_cause_or_note_summary": "Blower intake blocked", "matrix_row_ids": "DLT-075", "source_keys": "038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "8", "observation": "Won't walk down, or fights you", "visible_cause_or_note_summary": "Foreign material in the pit blocking the mechanism", "matrix_row_ids": "DLT-043", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "9", "observation": "Won't walk down, or fights you", "visible_cause_or_note_summary": "Side safety skirts damaged and jammed against the wall", "matrix_row_ids": "DLT-044", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "10", "observation": "Won't walk down, or fights you", "visible_cause_or_note_summary": "**The dock strut is engaged**", "matrix_row_ids": "DLT-045", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "11", "observation": "Won't walk down, or fights you", "visible_cause_or_note_summary": "The ratchet assembly may be damaged", "matrix_row_ids": "DLT-046, DLT-049", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "12", "observation": "Won't walk down, or fights you", "visible_cause_or_note_summary": "Weather seals, skirts or deck dragging against the pit wall", "matrix_row_ids": "DLT-047", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "13", "observation": "Won't walk down, or fights you", "visible_cause_or_note_summary": "**Lift springs improperly adjusted; tension may have been mistakenly increased to troubleshoot another problem**", "matrix_row_ids": "DLT-048", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "14", "observation": "Platform did not lower during normal walk-down", "visible_cause_or_note_summary": "Excessive main spring tension", "matrix_row_ids": "DLT-130", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-06", "visible_row": "15", "observation": "Platform did not lower during normal walk-down", "visible_cause_or_note_summary": "Damaged or worn hold-down mechanism", "matrix_row_ids": "DLT-131", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "1", "observation": "Springs back up after being walked down", "visible_cause_or_note_summary": "The pull chain is stuck in the open position", "matrix_row_ids": "DLT-050", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "2", "observation": "Springs back up after being walked down", "visible_cause_or_note_summary": "The ratchet pawl teeth are broken", "matrix_row_ids": "DLT-051", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "3", "observation": "Springs back up after being walked down", "visible_cause_or_note_summary": "The ratchet assembly mounts are broken", "matrix_row_ids": "DLT-052", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "4", "observation": "Springs back up after being walked down", "visible_cause_or_note_summary": "A foreign object is preventing the ratchet pawl from locking into place", "matrix_row_ids": "DLT-053", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "5", "observation": "Springs back up after being walked down", "visible_cause_or_note_summary": "Mis-adjusted auto collar", "matrix_row_ids": "DLT-054", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "6", "observation": "Springs back up after being walked down", "visible_cause_or_note_summary": "One or both springs damaged or missing in the ratchet assembly", "matrix_row_ids": "DLT-055", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "7", "observation": "Platform does not stay down", "visible_cause_or_note_summary": "Binding or stuck release chain", "matrix_row_ids": "DLT-134", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "8", "observation": "Platform does not stay down", "visible_cause_or_note_summary": "Dirt impacted in the ratchet bar teeth", "matrix_row_ids": "DLT-135", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "9", "observation": "Platform does not stay down", "visible_cause_or_note_summary": "Broken or damaged ratchet assembly teeth", "matrix_row_ids": "DLT-136", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "10", "observation": "Platform does not stay down", "visible_cause_or_note_summary": "Disconnected or broken hold-down pivot pins", "matrix_row_ids": "DLT-137", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-07", "visible_row": "11", "observation": "Platform does not stay down", "visible_cause_or_note_summary": "Damaged or worn hold-down mechanism", "matrix_row_ids": "DLT-138", "source_keys": "4111-0007", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "1", "observation": "Lip strikes the rear of the truck as the deck raises, stops or slows, and doesn't extend into the locked position", "visible_cause_or_note_summary": "Damaged or missing dock bumpers let the truck park too close", "matrix_row_ids": "DLT-056, DLT-089", "source_keys": "038-1083E; 038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "2", "observation": "Lip strikes the rear of the truck as the deck raises, stops or slows, and doesn't extend into the locked position", "visible_cause_or_note_summary": "Height difference between dock and truck bed greater than recommended", "matrix_row_ids": "DLT-057, DLT-090", "source_keys": "038-1083E; 038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "3", "observation": "Lip strikes the rear of the truck as the deck raises, stops or slows, and doesn't extend into the locked position", "visible_cause_or_note_summary": "Lip actuator assembly damaged, causing the lip to extend too early in the cycle", "matrix_row_ids": "DLT-058, DLT-091", "source_keys": "038-1083E; 038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "4", "observation": "Lip strikes the rear of the truck as the deck raises, stops or slows, and doesn't extend into the locked position", "visible_cause_or_note_summary": "Lip actuator requires adjustment", "matrix_row_ids": "DLT-059, DLT-092", "source_keys": "038-1083E; 038-1206E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "5", "observation": "Can't park the leveler with the truck still at the dock", "visible_cause_or_note_summary": "Damaged or missing dock bumpers", "matrix_row_ids": "DLT-060", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "6", "observation": "Can't park the leveler with the truck still at the dock", "visible_cause_or_note_summary": "Height difference greater than recommended", "matrix_row_ids": "DLT-061", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "7", "observation": "Can't park the leveler with the truck still at the dock", "visible_cause_or_note_summary": "Lip actuator requires adjustment", "matrix_row_ids": "DLT-062", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." }, { "table_id": "FT-08", "visible_row": "8", "observation": "Can't park the leveler with the truck still at the dock", "visible_cause_or_note_summary": "The lip crown is set too high", "matrix_row_ids": "DLT-063", "source_keys": "038-1083E", "evidence_note": "Grouped source summaries; handoff column is Uptime editorial guidance, not an OSHA permission category." } ], "data_dictionary": [ { "file": "dock-leveler-symptom-matrix.csv", "field": "row_id", "type": "text", "definition": "Stable entry identifier. Existing DLT/EC/T/SG identifiers are preserved; EC-15 and M-HIST are additions.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "symptom_group", "type": "text", "definition": "One of eight editorial presentation groups G1–G8; not a measured fault category.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "symptom_group_name", "type": "text", "definition": "Editorial name of the group.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "plain_language_symptom", "type": "text", "definition": "Reader-facing description, not an exact quotation or a diagnosis.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "source_symptom_reference", "type": "text", "definition": "Manufacturer symptom heading/reference, with minor punctuation/spacing normalization; consult the linked original.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "applicability_condition", "type": "text", "definition": "Conditions expressly attached to this scenario; not an instruction to test, open or energize equipment.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "leveler_type", "type": "text", "definition": "Mechanism/design scope described by the manual.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "cause_or_note_summary", "type": "text", "definition": "Brief fact/point from the named source, not a repair procedure or a probability.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "record_kind", "type": "text", "definition": "possible_cause, manufacturer_warning, design_note, inspection_prompt, or duplicate_source_entry.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "source_note", "type": "text", "definition": "Source caveat, duplicate flag, or context; blank means no additional note, not no hazard.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "uptime_handoff_guidance", "type": "text", "definition": "Editorial observation/handoff guidance; not an OEM quotation or an OSHA permission classification.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "guidance_type", "type": "text", "definition": "Explicit editorial evidence label.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "evidence_type", "type": "text", "definition": "Describes source-reported facts, calculated entry counts, or editorial synthesis.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "manufacturer", "type": "text", "definition": "Issuer/brand for the named equipment reference.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "source_document", "type": "text", "definition": "Source document. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "document_number", "type": "text", "definition": "Document number. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "revision", "type": "text", "definition": "Revision as printed; blank/not applicable is not revision zero.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "document_date", "type": "text", "definition": "Manufacturer issue date as shown; month-only values are retained rather than inventing a day.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "source_location", "type": "text", "definition": "Exact source section/page scope for spot-checking.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "printed_page", "type": "integer as CSV text", "definition": "Number printed on the cited manual page; integer, unit=page.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "pdf_page", "type": "integer as CSV text", "definition": "1-based physical PDF page for the linked file; differs from printed page in Poweramp manuals.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "source_url", "type": "text", "definition": "Working source URL retrieved during research; source availability can change.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "verified_date", "type": "text", "definition": "Actual source-check date in ISO YYYY-MM-DD, separate from publication.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-symptom-matrix.csv", "field": "scope_limit", "type": "text", "definition": "Scope limit. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "row_id", "type": "text", "definition": "Stable entry identifier. Existing DLT/EC/T/SG identifiers are preserved; EC-15 and M-HIST are additions.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "leveler_type", "type": "text", "definition": "Mechanism/design scope described by the manual.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "symptom_2026", "type": "text", "definition": "Symptom 2026. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "net_change", "type": "integer as CSV text", "definition": "entries_2026 minus entries_2018; unit=source entries. Not a machine performance comparison.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "what_changed", "type": "text", "definition": "What changed. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "older_document", "type": "text", "definition": "Older document. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "older_edition", "type": "text", "definition": "Older edition. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "verified_date", "type": "text", "definition": "Actual source-check date in ISO YYYY-MM-DD, separate from publication.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "comparison_scope", "type": "text", "definition": "Comparison scope. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "older_source_url", "type": "text", "definition": "Older source url. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "newer_source_url", "type": "text", "definition": "Newer source url. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "older_location", "type": "text", "definition": "Older location. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "newer_location", "type": "text", "definition": "Newer location. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "evidence_type", "type": "text", "definition": "Describes source-reported facts, calculated entry counts, or editorial synthesis.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "newer_document", "type": "text", "definition": "Newer document. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "newer_edition", "type": "text", "definition": "Newer edition. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "entries_2018", "type": "integer as CSV text", "definition": "Count of numbered entries under the matched older heading; includes duplicate/notes. Zero means no separately matched heading.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "entries_2026", "type": "integer as CSV text", "definition": "Same count rule for the newer document; not failure frequency.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-edition-changes.csv", "field": "count_definition", "type": "text", "definition": "How entry counts are interpreted and what they do not establish.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "row_id", "type": "text", "definition": "Stable entry identifier. Existing DLT/EC/T/SG identifiers are preserved; EC-15 and M-HIST are additions.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "what_people_call_it", "type": "text", "definition": "What people call it. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "poweramp_term", "type": "text", "definition": "Term in the cited Poweramp documents; no equivalent established is not absence from all Poweramp products.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "what_it_does", "type": "text", "definition": "What it does. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "why_the_name_matters", "type": "text", "definition": "Why the name matters. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "sources", "type": "text", "definition": "Source keys resolved through dock-leveler-sources.csv.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "verified_date", "type": "text", "definition": "Actual source-check date in ISO YYYY-MM-DD, separate from publication.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "blue_giant_term_in_cited_edition", "type": "text", "definition": "Term in the named Blue Giant documents; not asserted universal/current across products.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "source_urls", "type": "text", "definition": "Primary reference URLs separated by |; IDs may also point to a manufacturer-authored historical third-party copy when expressly labeled.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "evidence_type", "type": "text", "definition": "Describes source-reported facts, calculated entry counts, or editorial synthesis.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-terminology-crosswalk.csv", "field": "source_scope", "type": "text", "definition": "Source scope. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "row_id", "type": "text", "definition": "Stable entry identifier. Existing DLT/EC/T/SG identifiers are preserved; EC-15 and M-HIST are additions.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "task_at_the_leveler", "type": "text", "definition": "Task at the leveler. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "regulatory_scope", "type": "text", "definition": "Applicability explanation, not a legal determination for a job.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "uptime_guidance", "type": "text", "definition": "Uptime guidance. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "model_specific_support_note", "type": "text", "definition": "Conditional source support context; not directions for deploying a support.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "personnel_note", "type": "text", "definition": "Task-specific competence/authorization reminder, not a universal headcount.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "sources", "type": "text", "definition": "Source keys resolved through dock-leveler-sources.csv.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "source_urls", "type": "text", "definition": "Primary reference URLs separated by |; IDs may also point to a manufacturer-authored historical third-party copy when expressly labeled.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "verified_date", "type": "text", "definition": "Actual source-check date in ISO YYYY-MM-DD, separate from publication.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-authority-gate.csv", "field": "evidence_type", "type": "text", "definition": "Describes source-reported facts, calculated entry counts, or editorial synthesis.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "row_id", "type": "text", "definition": "Stable entry identifier. Existing DLT/EC/T/SG identifiers are preserved; EC-15 and M-HIST are additions.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "manufacturer", "type": "text", "definition": "Issuer/brand for the named equipment reference.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "document_title", "type": "text", "definition": "Document title. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "document_number", "type": "text", "definition": "Document number. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "revision", "type": "text", "definition": "Revision as printed; blank/not applicable is not revision zero.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "issue_date", "type": "text", "definition": "Manufacturer date; YYYY-MM or YYYY-MM-DD precision retained.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "access", "type": "text", "definition": "Access. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "troubleshooting_section", "type": "text", "definition": "Troubleshooting section. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "printed_pages", "type": "text", "definition": "Printed pages. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "symptoms_listed", "type": "text", "definition": "Number of manual-specific symptom headings; not distinct universal diagnoses.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "source_url", "type": "text", "definition": "Working source URL retrieved during research; source availability can change.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "verified_date", "type": "text", "definition": "Actual source-check date in ISO YYYY-MM-DD, separate from publication.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "note", "type": "text", "definition": "Note. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "entries_in_matrix", "type": "text", "definition": "Number of rows from that document in the 140-row matrix; zero for historical-only reference.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-manual-index.csv", "field": "verification_scope", "type": "text", "definition": "What was actually checked and limits on currentness or coverage.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "source_key", "type": "text", "definition": "Source key. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "publisher", "type": "text", "definition": "Publisher. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "document", "type": "text", "definition": "Document. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "edition_or_date", "type": "text", "definition": "Edition or date. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "source_class", "type": "text", "definition": "Source class. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "url", "type": "text", "definition": "Url. See the row-specific source and scope notes.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "verified_date", "type": "text", "definition": "Actual source-check date in ISO YYYY-MM-DD, separate from publication.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "verification_scope", "type": "text", "definition": "What was actually checked and limits on currentness or coverage.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "source_location", "type": "text", "definition": "Exact source section/page scope for spot-checking.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-sources.csv", "field": "verification_method", "type": "text", "definition": "Text and/or page-image inspection status.", "missing_value_rule": "Empty cell = unknown/not provided; never substitute zero. Explicit no-matched-heading zeros apply only to comparison counts.", "units_or_scope": "Source records/manual pages or categorical references; no sampled facilities, national denominator, frequency, costs or failure rates." }, { "file": "dock-leveler-onpage-crosswalk.csv", "field": "table_id", "type": "text", "definition": "Fault table ID FT-01 through FT-08 in article order.", "missing_value_rule": "Blank means not supplied; no zero imputation.", "units_or_scope": "Editorial table-to-source mapping only." }, { "file": "dock-leveler-onpage-crosswalk.csv", "field": "visible_row", "type": "text", "definition": "1-based row within the named visible fault table.", "missing_value_rule": "Blank means not supplied; no zero imputation.", "units_or_scope": "Editorial table-to-source mapping only." }, { "file": "dock-leveler-onpage-crosswalk.csv", "field": "observation", "type": "text", "definition": "The exact displayed observation cell; not a diagnosis.", "missing_value_rule": "Blank means not supplied; no zero imputation.", "units_or_scope": "Editorial table-to-source mapping only." }, { "file": "dock-leveler-onpage-crosswalk.csv", "field": "visible_cause_or_note_summary", "type": "text", "definition": "The exact displayed cause/note cell, including portable Markdown formatting.", "missing_value_rule": "Blank means not supplied; no zero imputation.", "units_or_scope": "Editorial table-to-source mapping only." }, { "file": "dock-leveler-onpage-crosswalk.csv", "field": "matrix_row_ids", "type": "text", "definition": "Source matrix DLT IDs supporting that row, comma-separated.", "missing_value_rule": "Blank means not supplied; no zero imputation.", "units_or_scope": "Editorial table-to-source mapping only." }, { "file": "dock-leveler-onpage-crosswalk.csv", "field": "source_keys", "type": "text", "definition": "Source keys.", "missing_value_rule": "Blank means not supplied; no zero imputation.", "units_or_scope": "Editorial table-to-source mapping only." }, { "file": "dock-leveler-onpage-crosswalk.csv", "field": "evidence_note", "type": "text", "definition": "Evidence note.", "missing_value_rule": "Blank means not supplied; no zero imputation.", "units_or_scope": "Editorial table-to-source mapping only." } ] } }