The load limiter (also known as limit switch) of a chain hoist is a critical safety device that ensures that the equipment automatically stops when it reaches a predetermined load or position. The method of debugging a load limiter mainly involves testing its functionality and accuracy. The following are some specific debugging steps and precautions:

1、 Preparation work

Refer to the instruction manual: Firstly, carefully read the user manual or technical manual of the chain hoist to understand the specific type, working principle, installation position, and debugging requirements of the load limiter.

Safety inspection: Before debugging, a comprehensive safety inspection of the equipment should be conducted to ensure that all components (including chains, sprockets, motors, etc.) are in good condition and that the electrical system has no safety hazards such as short circuits or leakage.

Tool preparation: Prepare necessary debugging tools such as multimeters, screwdrivers, test blocks, etc.

2、 Debugging steps

Check the connection: Confirm whether the electrical connection of the load limiter is correct, without looseness or poor contact.

Functional testing:

Empty load test: Under no-load conditions, manually operate the hoist to approach the trigger position of the load limiter, observe whether the load limiter can accurately operate and cut off the power supply.

Simulated load test: Use a test block of appropriate weight to simulate the load and repeat the above testing steps to verify the reliability of the load limiter under different load conditions.

Adjustment settings: If the load limiter is inaccurate or operates too early/too late during the testing process, appropriate adjustments should be made according to the instructions in the user manual or technical manual. The adjustment content may include fine-tuning of the trigger position, adjustment of electrical parameters, etc.

Multiple verifications: After the adjustment is completed, multiple tests are required to verify the accuracy and stability of the load limiter. Ensure that the load limiter can operate correctly and protect equipment safety under different loads and operating conditions.

3、 Precautions

Safe operation: During the debugging process, it is necessary to strictly follow the safety operation regulations and wear necessary protective equipment (such as safety helmets, gloves, etc.) to prevent accidental injuries.

Professional guidance: If encountering difficulties or uncertain situations during the debugging process, it is necessary to promptly consult the manufacturer's technical personnel or engineers with relevant professional knowledge for guidance.

Record data: Throughout the entire debugging process, detailed records of test data, adjustment process, and identified issues should be kept for subsequent analysis and improvement.

Regular maintenance: After debugging is completed, the load limiter should be inspected and maintained regularly to ensure its long-term good working condition.

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