Determine Whether The Trailer Adjusting Arm Is Working Properly

Visual inspection

1. Check the appearance integrity: First observe whether the appearance of the adjusting arm has obvious damage, cracks or deformation. At the same time, check whether the connection part is tight, and there is no loosening or falling off.

2. Cleanliness Check: Check whether there is oil, dust or other impurities in and around the adjusting arm. Excessive impurities may affect the normal operation of the adjusting arm, and even lead to its stuck or failure.

Functional testing

1. Brake clearance check: in the stationary state of the vehicle, check whether the brake clearance of the wheel meets the specified range. If the brake gap is too large or too small, it may be a sign that the adjusting arm is not working normally.

2. Brake performance test: Perform actual brake test to observe whether the braking response of the vehicle is rapid and stable, and whether the braking distance is within the specified range. If the braking performance is significantly reduced, it may be caused by the failure of the adjusting arm to effectively adjust the brake clearance.

3. Clearance adjustment function test: After the vehicle travels a certain distance (such as every 20,000 kilometers), the brake clearance is checked again. If the brake clearance remains within the normal range at this time, it indicates that the automatic adjustment function of the adjusting arm is normal. If the clearance changes too much, it may be that the adjusting arm is not working properly.

Sound and sensation judgment

1. Sound judgment: During the braking process of the vehicle, pay attention to whether there is abnormal sound in the braking system. If you hear rattling, snapping and other abnormal sounds, it may be caused by wear or stagnation of the internal parts of the adjusting arm.

2. Feel judgment: When the vehicle is braking, the working state of the brake system can be preliminarily judged by feeling the feedback force and travel changes of the brake pedal. If the brake pedal feels unusually heavy or travels too long, it may be caused by the adjustment arm not effectively adjusting the brake clearance.

Professional testing

If the above methods cannot accurately determine whether the adjustment arm is working normally, it is recommended to send the vehicle to a professional maintenance site for testing. Maintenance personnel can use professional testing equipment and tools to conduct a comprehensive inspection of the adjusting arm, and give accurate judgment and treatment opinions.

Matters needing attention

1. Regular maintenance: According to the recommendations of the vehicle manufacturer, regular maintenance and inspection of the brake system, including cleaning, lubrication and fastening of the adjusting arm. This helps to maintain the normal working condition of the adjusting arm and extend its service life.

2. Avoid overload: overload will increase the burden of the brake system and accelerate the wear of the regulating arm. Therefore, overload should be avoided when using the vehicle and the cargo should be evenly distributed to reduce the pressure on the brake system.

3. Pay attention to the use environment: harsh use environment (such as dusty, humid, high temperature, etc.) may accelerate the wear and aging of the adjustment arm. When using vehicles in these environments, more attention should be paid to the maintenance and inspection of the brake system.