The faults in front suspension system may be relating to multiple systems, including steering gear, front axle, tires, wheels, etc. When abnormal conditions occur during driving (such as noise, running deviation, vibration and abnormal damage), stop the vehicle immediately and do a thorough inspection to calibrate the items relating to the following:
a. If pressure of tires is normal;
b. If tires have non-uniform wear;
c. If tires are in unbalanced or damaged;
d. If the fsteners of each bracket are loose;
e. If steering components are worn and loose, such as tie rod ball;
f. If suspension components are damaged and loose, such as wear resisting washer between lifting lug and leaf spring eye or bracket;
g. If front axle and wheel alignment is correct;
h. If lubrication failure and oil, water or air leakage.
i. If the cylinder type shock absorber is malfunction
Please note the following points:
1. It is necessary to replace the thrust rod repair kit after the truck has run for 4 months, (20,000km).
2. It is necessary to replace the leaf spring seat wear block after the truck has run for 4 months (20,000km).
3. When the clearance between the guide cover plate and the leaf spring is ≥3mm, it is necessary to add adjusting shims to keep the clearance ≤0.5mm;
4. If the wear extent of the guide cover plate is ≥ 5mm, it is necessary to replace it.
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