A detailed ELECTRIC HOISTSEMI ANNUAL preventive maintenance checklists
1. Visual Inspection
2. Electrical System Check
3. Mechanical Components Inspection
4. Load Testing
- Attach a calibrated load to the hook.
- Gradually increase the load to the hoist's rated capacity.
- Observe the hoist's operation throughout the lift.
- Record any discrepancies in performance.
- Lift the load to the maximum height.
- Lower the load slowly to the ground.
- Hold the load at various heights for 30 seconds.
- Ensure no slippage or failure occurs during these actions.
- Listen for grinding, rattling, or squeaking sounds.
- Feel for excessive vibrations on the hoist body.
- Check for loose components or abnormal movements.
- Document any irregularities for further inspection.
- Operate the hoist without any load and observe its function.
- Perform the load test with the rated load as previously mentioned.
- Compare the performance metrics between no-load and full-load.
- Ensure smooth operation in both scenarios without delay.
- Attach the test load securely to the hoist.
- Gradually lift the load to the rated capacity level.
- Ensure the hoist operates smoothly without strain.
- Note any performance issues during the lift.
- Lift the load to a predetermined height.
- Lower the load smoothly to the ground.
- Hold the load for a specified period.
- Check for any slipping or failure during holding.
- Listen for abnormal sounds while lifting and lowering.
- Feel for vibrations in the hoist body.
- Note any irregularities and their timing during the test.
- Report any issues immediately for further inspection.
- Run the hoist without any load first.
- Observe the operation speed and responsiveness.
- Then perform the same tests under full load.
- Compare results and note any discrepancies.
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