Maintenance Of Leaf Springs And Brakes Of Heavy-Duty Trailers
The leaf springs and brakes of heavy-duty trailers are the core load-bearing and braking components. Their working conditions are closely related, and single maintenance can easily lead to secondary faults.
Therefore, during maintenance, a combined inspection and coordinated operation should be carried out. The specific points are as follows:
When repairing the leaf spring, it is necessary to simultaneously check the condition of the brake fixed bolts.
The leaf spring is prone to deformation under heavy load for a long time. Excessive deformation may cause the brake bracket to shift, affecting the braking accuracy. If any looseness, rust, or displacement of the bolts is found, they should be tightened or replaced in time.
When replacing the brake, it is essential to pay close attention to the bearing condition of the leaf spring.
Measure the depression of the leaf spring using professional tools. If it exceeds 2 cm, it indicates that its bearing capacity has decreased, and it cannot provide a stable installation foundation for the brake. In this case, it is necessary to conduct a simultaneous repair or replacement of the leaf spring to prevent uneven force distribution in the brake and potential failures.
Practical Maintenance Suggestions:
- Based on the heavy-duty trailer operation conditions, it is recommended to conduct a check on the leaf springs and brakes every 10,000 kilometers of driving.
- The key points to inspect include the deformation amount of the leaf springs, cracks, and the attenuation of elasticity. At the same time, verify the wear degree of the brake pads and the braking clearance. By conducting a combined inspection, potential problems can be identified in advance, avoiding the risk of driving accidents caused by the omission of maintenance for a single component.
