Ask for functional evidence behind the control labels
An emergency-lowering label cannot establish that the function works under its defined loss-of-power or fault condition. Qualified personnel need to test the installed controls, priority logic and protections using the selected manufacturer’s method.
Include upper and lower controls, overrides, interlocks, emergency functions and the stowed travel condition. Begin with the static condition of the structure, pins, hoses, guards and supports. Visibly damaged or incomplete equipment is not ready to be energized.
Record the setup, load and control logic used in each check
Movement alone is not a pass if the required control priority or protection is absent. Bypassing a device or presenting a generic factory video cannot establish unit-specific acceptance. The record must preserve the tested method and any exceptions.
Scroll horizontally to view all columns.
| Decision | What to establish | Condition or limit |
|---|---|---|
| Static condition | Inspect structure, pins, hoses, guards, labels and support system. | Do not energize visibly damaged or incomplete equipment. |
| Control hierarchy | Verify upper, lower, override and emergency functions. | Control movement without the correct priority logic is not a pass. |
| Limits and interlocks | Test each required condition using the approved method. | Never defeat a device or simulate a pass without recording the method. |
| Release record | Link setup, load, result, exception and closure to the vehicle. | Generic factory videos are not unit-specific acceptance evidence. |
Require closed findings before release or personnel elevation
Match each result to the vehicle and installed configuration, then retain corrective work and repeat checks. The applicable manufacturer and qualified inspector determine the sequence and limits. This checklist provides no proof load, insulation test or regulatory inspection method.
Information to prepare for this review
- Approved model, installation and control documents
- Vehicle and equipment identity
- Manufacturer test procedure and test load
- Safe level test area and exclusion zone
- Required interlocks, limits, alarms and emergency modes
- Exception, correction and release authority
Records to request and keep
- Vehicle and platform identity reconciliation
- Static structural and hydraulic inspection
- Mode-by-mode control, limit and emergency test
- Signed exception closure and release record
Common mistakes and what to check instead
- Testing motion before static inspection: Check structure, support, hoses, pins and guards first.
- Checking only platform controls: Verify lower controls, override and emergency lowering as specified.
- Bypassing an interlock for convenience: Stop, diagnose, correct and retest the safety function.
Scope of this guide
This checklist does not define a proof load, insulation test or regulatory inspection.
Qualified inspectors and the exact manufacturer procedure remain controlling.
Do not test, release or elevate personnel with structural, hydraulic, control, interlock, emergency-lowering or inspection-status defects.
Sources and applicability
Controls the project-input, quotation, approval and inspection workflow described in this guide.
Provides public checklists and worksheets; the signed project documents remain controlling.
Defines the relevant product family and published configuration boundaries. Project-specific ratings require the selected OEM documents.
Official U.S. reference supporting manufacturer load limits, controls, outriggers, brakes and travel checks. It is not a destination approval or KEEYAK rating.
Official U.S. guidance for worksite assessment, training, inspection, platform load, reach and stabilization. Local rules may differ.