10. FRONT/REAR AXLE
10–2
Inspection & Overhaul
Inspection and overhaul if any of problem
s below happens to front and rear axle.
Descriptions Causes
1. Unstable moving during accelerating,
decelerating
or constant speed.
2. Abnormal sound in front rear axle;
3. Engine power transmission failure to front or
rear wheels.
A. Bearing broken;
B. Gear clearance over/under size;
C. Gear severely worn;
D. Gear blocked;
E. Drive shaft broken
F. lack of lubricant
G. Foreign matter in front or rear gear
Note：A、B、C problem
s are hard to distinguish. Analysis is needed based on actual break-down
catagories. Make sure engine works all right before disassembly of front or rear axle
Observation and Judgement
1. Never ignore abnormal sound:
a. Abnormal sounds during accelerating, decelerating have little to do with
engine working, but possibly with gear worn.
b. Constant abnormal sounds during accelerating or decelerating might be
cause by gear clearance wrongly adjusted during assembling.
Note: Wrong assembly or adjustment of the front or rear axle will aggravate
gear worn and block;
c. Slight sounds will be noticed during low-speed driving, and should not be heard during
high-speed driving. This is caused by gear block.
Note：In case of above mentioned times, stop the vehicle immediately for
inspection until they are solved, or will cause accident.
2. Check lubrication;
3. Check lubricant leakage;
a. Rear axle surface oil stain inspection before through inspection;
b. Oil stain on ground on the parking lot；
c. Lubricant splash inspection. Check if there is gear case or oil seal leakage.
Replace broken parts if necessary.
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