Regular and comprehensive inspections and maintenance of tractor units are crucial for ensuring their safe operation. Neglecting daily checks of critical components can lead to safety hazards; for example, a fuel tank leak could trigger a multi-vehicle rear-end collision.
Single Axle Tractor Mount Inspection
1. During the first-level maintenance, inspect all components of the tractor mount, paying particular attention to the wear of the traction pin, traction pin plate, and semi-cross shaft, and lubricate these parts; tighten the support bolts, replacing them if necessary; adjust the clearance between the locking hook and the traction pin using the adjusting screw, and then tighten it with the nut.
2. When disassembling and inspecting the traction seat, carefully check for cracks and severe wear. If cracks or severe wear cause deformation or excessive thinness, replace the seat. Inspect the locking hole; use the traction pin for fit testing. If wear exceeds limits, resulting in large clearances, repair by welding and machining to the required dimensions, or replace the locking hook, locking block, and wear ring. Check the fit clearance between the support and the body; if loose, replace the rubber elastic bushing. Inspect the locking mechanism; engagement and disengagement should be smooth and crisp, and the safety device should be secure and reliable. If any abnormalities are found, check the locking hook spring and the numbered handle spring. Inspect the safety mechanism; if the spring elasticity is weakened, replace it.
Dual-Axis Traction Seat Inspection and Maintenance: In addition to the same inspection and maintenance items as for single-axis traction seats, pay attention to the following points:
1. Inspect the integral horizontal and vertical shafts. If deformation or severe wear is found, weld to the required dimensions, repair, or replace. Ensure the traction seat can swing flexibly laterally and longitudinally, and that the fit clearances meet standards. 2. Check the lateral swing angle and the buffer devices on both sides. If the lateral swing angle is too large, adjust it using the wedge blocks on both sides. Replace the buffer springs or rubber blocks if they are worn out.
