A detailed ELECTRIC HOIST ANNUAL preventive maintenance checklists
General Safety Checks
Electrical System Inspection
Mechanical Components Examination
Performance Testing
- Attach a calibrated load to the hoist.
- Gradually raise the load to the rated capacity.
- Monitor for any signs of strain or failure.
- Lower the load safely and repeat if necessary.
- Lift a standard load and time the duration.
- Compare the timing with manufacturer's specifications.
- Lower the load and repeat the timing.
- Document any discrepancies in speed.
- Raise and lower the hoist to the limit switch points.
- Confirm that the hoist stops appropriately.
- Adjust limit switches if necessary.
- Test multiple times for consistency.
- Activate the hoist using the remote control.
- Test all functions: lift, lower, and emergency stop.
- Ensure signals are received promptly.
- Check battery and connections if issues occur.
- Engage the hoist to lift and lower loads in both directions.
- Move the hoist horizontally at various heights.
- Observe the operation for fluidity and responsiveness.
- Ensure no jerking or stalling occurs during movement.
- Attach a load to the hoist.
- Activate the hoist and allow it to reach a stable lift.
- Engage the emergency stop to ensure it halts promptly.
- Check for any delay or failure in the braking action.
- Lift a load and observe the hoist's behavior.
- Check for any wobbling or tilting during lifting.
- Lower the load slowly and monitor for stability.
- Ensure that the load remains centered and balanced.
- Operate the hoist at various speeds and loads.
- Listen for grinding, squeaking, or rattling sounds.
- Feel for excessive vibrations in the hoist structure.
- Document any irregular sounds for further inspection.
- Gradually increase the load on the hoist.
- Observe the hoist's response as it approaches its rated capacity.
- Confirm the overload protection engages and stops operation.
- Ensure an alarm or indicator is activated, if applicable.
- Test the hoist at minimum and maximum speed settings.
- Verify smooth acceleration and deceleration during adjustments.
- Check for any erratic speed changes or delays.
- Ensure settings return to normal after adjustments.
- Visual inspection of cables for fraying or kinks.
- Check hooks for deformation or cracks.
- Examine the hoist frame for rust or structural damage.
- Ensure safety latches on hooks operate correctly.
- Conduct a series of lifts and lowers with a consistent load.
- Monitor the motor and housing temperature throughout.
- Check for any performance degradation over repeated cycles.
- Ensure all functions operate smoothly after multiple cycles.
- Create a log of all testing observations.
- Document any unusual sounds, vibrations, or performance issues.
- Note any required follow-up actions or repairs.
- Share findings with maintenance personnel for review.
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