When encountering issues with a wire rope electric hoist in a shopping mall, such as not functioning properly or not "doing its homework" (i.e., not performing as expected), several steps can be taken to troubleshoot and resolve the problem. Here are some practical solutions:

1. Initial Inspection

Check Power Supply: Ensure that the hoist is properly connected to a stable power source. Verify that the circuit breakers or fuses are not tripped or blown.

Inspect Controls: Check the pendant control or remote control for any signs of damage or malfunction. Ensure that the buttons or levers are functioning correctly.

2. Safety and Operational Checks

Emergency Stop: Test the emergency stop button to ensure it works and can quickly halt the hoist in case of an emergency.

Limit Switches: Check the limit switches to see if they are functioning correctly. These switches prevent the hoist from overtraveling its designated range.

Load Indicators: If equipped, verify that load indicators are displaying accurate information.

3. Mechanical Inspection

Wire Rope: Inspect the wire rope for any signs of wear, fraying, or corrosion. Replace it if necessary.

Sheaves and Drums: Check the sheaves and drums for wear and ensure they are properly aligned.

Bearings and Lubrication: Inspect bearings for wear and ensure they are adequately lubricated.

4. Electrical and Electronic Checks

Motor and Gearbox: Listen for any unusual noises that may indicate a problem with the motor or gearbox.

Controllers and Sensors: Check any electronic controllers or sensors for proper function. This may involve using diagnostic tools or consulting the hoist's manual.

5. Troubleshooting with Manufacturer's Guidelines

Refer to Manual: Consult the hoist's owner's manual for specific troubleshooting steps and guidelines.

Contact Manufacturer: If the issue persists, contact the hoist's manufacturer or a certified service technician for assistance.

6. Preventive Maintenance

Regular Inspections: Schedule regular inspections and maintenance checks to catch potential problems before they become critical.

Lubrication: Keep all moving parts properly lubricated to reduce wear and extend the hoist's lifespan.

Training: Ensure that operators are properly trained on how to use and maintain the hoist.

7. Safety Considerations

Lockout/Tagout: Always follow lockout/tagout procedures when working on or near the hoist to prevent accidental energization.

Personal Protective Equipment (PPE): Wear appropriate PPE, such as safety glasses, gloves, and hard hats, when performing inspections or maintenance.

8. Documentation and Record Keeping

Maintenance Logs: Keep detailed maintenance logs to track inspections, repairs, and replacements.

Incident Reports: Document any incidents or malfunctions, including the steps taken to resolve them.

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