The scope of automotive technical maintenance operations is determined by the mileage of the car. The more mileage a car travels, the greater its maintenance level. Generally, it is divided into primary and secondary maintenance and routine maintenance. The larger the number of stages, the more operation content. As far as the steering system is concerned, it is mainly to fasten the bolts and nuts of the steering gear, the steering horizontal and straight rod, the leaf spring suspension, the wheels, and the axle shaft. Lubricate the steering kingpin, front and rear steel plate spring pins, steering tie rods, wheel hub bearings, etc.
(1) Daily maintenance
Daily maintenance is centered on lubrication and tightening. Keep the front axle and steering system of the car in good technical condition to ensure the normal operation of the car in daily driving. The main tasks are routine items: check and tighten the screws and nuts on the exposed parts, lubricate the turning points according to the regulations, and eliminate the faults found.
(2) One-level maintenance
The first-level maintenance focuses on inspection and adjustment to maintain good working performance of the front axle and steering system components of the vehicle, and to ensure normal operation within the mileage of the first-level maintenance interval. The main work content: check the fastening of each connection part of the axle, check the steering mechanism from the outside, check the working condition of the main reducer for the front axle drive vehicle, adjust and eliminate the found fault: remove and wash the wheel bearing, add , Replace the grease, add the gear oil of the steering gear (for the front axle driving vehicle still need to add the main reducer), the tire rotation, etc.
(3) Secondary maintenance
The secondary maintenance centers on assembly disassembly, cleaning, inspection, and adjustment, to maintain the working performance of the components of the front axle and steering system, and to ensure normal operation within the mileage of the secondary maintenance interval. Its main content includes all items of daily maintenance, cleaning, inspection and adjustment of the steering gear (for front axle driving vehicles, including the final drive), dismantling and cleaning the front axle of the car, and checking the front axle, steering arm, steering knuckle, and king pin And the technical status of the bushing and thrust bearing.
