Here's a summary of common malfunctions in running hand pulleys:

1. Wheel Issues

Wear and Tear:

Causes: Normal operation over time, lack of lubrication, or overloading.

Consequences: Reduced efficiency, potential wheel failure, and load drop.

Damage:

Causes: Overloading, improper use, or material fatigue.

Consequences: Wheel cracking, deformation, and potential rope slip or failure.

2. Rope or Cable Issues

Wear and Tear:

Causes: Normal operation over time, lack of lubrication, or overloading.

Consequences: Rope or cable breakage, failure, and potential load drop.

Fraying:

Causes: Normal operation over time, lack of lubrication, or overloading.

Consequences: Reduced rope or cable strength, potential failure, and load drop.

3. Bearing Issues

Wear and Tear:

Causes: Normal operation over time, lack of lubrication, or overloading.

Consequences: Increased friction, noise, and potential bearing failure.

Lubrication Issues:

Causes: Insufficient lubrication or degraded lubricant.

Consequences: Increased wear, overheating, and potential bearing failure.

4. Handle or Lever Issues

Wear and Tear:

Causes: Normal operation over time, lack of maintenance, or overloading.

Consequences: Reduced efficiency, potential handle or lever failure, and difficulty in operation.

Damage:

Causes: Overloading, improper use, or material fatigue.

Consequences: Handle or lever cracking, deformation, and potential failure.

5. Frame or Housing Issues

Wear and Tear:

Causes: Normal operation over time, lack of maintenance, or overloading.

Consequences: Reduced stability, potential frame or housing failure, and difficulty in operation.

Damage:

Causes: Overloading, improper use, or material fatigue.

Consequences: Frame or housing cracking, deformation, and potential failure.

6. Operational Issues

Jamming:

Causes: Debris accumulation, misalignment, or component failure.

Consequences: Difficulty in operation, potential component failure, and load drop.

Stiffness:

Causes: Lack of lubrication, component failure, or debris accumulation.

Consequences: Difficulty in operation, increased effort required, and potential component failure.

7. Maintenance Issues

Lack of Lubrication:

Causes: Insufficient lubrication or failure to lubricate regularly.

Consequences: Increased wear, overheating, and potential component failure.

Dirt and Debris:

Causes: Failure to clean the pulley regularly.

Consequences: Jamming, misalignment, and potential component failure.

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