A detailed ELECTRIC HOIST SEMI ANNUAL preventive maintenance checklists
1. Visual Inspection
2. Hoist Mechanism
- Examine the hook for any visible deformation.
- Look for cracks or signs of metal fatigue.
- Check the hook's locking mechanism for proper functionality.
- Inspect the entire length of the wire rope or chain.
- Look for frayed strands or signs of wear.
- Ensure no kinks or twists are present in the rope or chain.
- Run the hoist through its full range of motion.
- Listen for any unusual noises during operation.
- Check for any jerky movements or irregularities.
- Identify all moving parts that require lubrication.
- Use the recommended lubricant as per the manufacturer's guidelines.
- Apply lubricant evenly and avoid over-lubrication.
- Check sheaves for grooves or wear patterns.
- Look for any cracks or damage on pulleys.
- Ensure all components are aligned correctly.
- Inspect all mounting brackets for rust or corrosion.
- Ensure all bolts and nuts are tight and secure.
- Look for any signs of structural damage.
- Test the limit switches by operating the hoist.
- Ensure switches engage and disengage at correct heights.
- Adjust switches if necessary for proper function.
- Clean the hoist drum of any accumulated debris.
- Check that the rope or chain is seated properly in the drum.
- Ensure no tangles or misalignments exist.
- Examine gears for wear, chips, or damage.
- Ensure proper lubrication is applied to all gears.
- Check for smooth operation during tests.
- Inspect all metal parts for rust or corrosion.
- Use appropriate treatment to remove corrosion.
- Apply protective coatings to prevent future corrosion.
- Activate the emergency stop switch during operation.
- Ensure the hoist stops immediately and safely.
- Reset the system after testing.
- Check all electrical connections for tightness.
- Inspect for any signs of corrosion or wear.
- Clean connections if necessary to ensure conductivity.
- Use a level to check the hoist's alignment.
- Adjust mounting if the hoist is not level.
- Ensure all installation standards are met.
- Locate the load rating label on the hoist.
- Ensure it is legible and not obscured.
- Verify that the rating matches the hoist's specifications.
Use in Manifestly