To maintain and improve the service life of an explosion-proof steel wire rope electric hoist, it is crucial to follow a comprehensive maintenance plan. Here are some key steps and considerations:

Regular Cleaning and Inspection

Keep the exterior and surrounding area of the hoist clean, removing any debris or flammable materials that could hinder safe operation.

Regularly inspect the explosion-proof components and ensure they are intact and functioning properly.

Check for any cracks or mechanical deformations in the housing that could compromise its explosion-proof capabilities.

Ventilation and Temperature Control

Ensure the hoist operates in a well-ventilated environment to prevent overheating.

Monitor the surface temperature of the housing and ensure it does not exceed the maximum temperature specified by the manufacturer.

Mechanical Integrity

Ensure that the hoist operates without external damage, or friction between components.

Check for any loose bolts or springs and tighten them as necessary.

Inspect the cable inlet devices for proper sealing and replace any damaged or aged seals.

Electrical Safety

Regularly check the grounding wires for tightness, corrosion, or breaks.

Verify that the explosion-proof electrical components are intact and functioning correctly.

Test the insulation resistance of motors, electrical appliances, and wiring periodically.

Specific Maintenance for Explosion-Proof Features

For positive-pressure explosion-proof hoists, ensure that the internal gas is free of explosive or harmful substances, and that the gas volume and pressure meet specifications.

Check and maintain the micro-pressure (pressure) relays for proper functioning.

For oil-filled explosion-proof hoists, monitor the oil level and replenish it as needed. Ensure that the oil temperature does not exceed the specified limit and check for any blockages in the exhaust device or leaks in the oil tank.

Emergency Measures

Operators should take immediate emergency measures and shut down the hoist if any of the following situations occur: sudden overload, phase failure, abnormal high temperature or smoking of the motor or switch, friction due to loose components, or severe mechanical load faults that endanger electrical safety.

Scheduled Maintenance

Perform general maintenance regularly, including cleaning the exterior of the hoist, checking for and replacing worn parts, testing insulation resistance, and ensuring adequate lubrication.

Schedule professional maintenance every six months or one year to restore the explosion-proof performance of the hoist. This should be carried out by technicians with advanced explosion-proof electrical skills.

Replacement of Parts

When replacing parts, ensure they comply with the safety documentation provided by the manufacturer and do not adversely affect the explosion-proof performance of the hoist.

Training and Awareness

Provide training to operators on the proper use and maintenance of the explosion-proof steel wire rope electric hoist.

Raise awareness among operators about the importance of explosion-proof safety and the potential consequences of improper operation or maintenance.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment