114
Fault symptom
Possible cause
Eliminating method
Misproportion or
untimely tire wear
3. Others
1) Breakdown caused by the abrupt
starting or the emergent braking
2) Overloading
1) Correct the driving pattern
2) Make the loading according to the
specified capacity
Heavy operation of the
steering wheel (the
steering system
breakdown)
1. Too low oil level
2. Lubricant deterioration or
impurity in it
3. Abrasion of the steering junction
4. Fault of the power steering
system
5. Excessive lubricant resistance
caused by the pipeline sunken
6. Too low oil pressure caused by
the ineffective hydraulic pump
7. There has air in the hydraulic
pipeline
8. Malfunction of rotary valve
9. Abrasion or damage of the
power cylinder and damage of
the piston O -ring
10. Too much leakage of the oil
inside the steering gear housing
1. Add the lubricant to the given level
2. Replace the lubricant
3. Replace the ball stud
4. Overhaul and eliminate trouble.
5. Measure the backpressure and
repair or replace the pipeline in case
of the set value exceeded
6. Measure the oil pressure and the flow
volume; disassemble and repair the
hydraulic pump if the set value
belowed
7. Bleed air and add oil.
8. Disassemble and repair rotary valve.
9. Disassemble and repair.
10. Disassmeble and repair steering
housing.
Heavy operation of the
steering wheel
(breakdown of the front
axle)
1. Improper adjustment of the
wheel alignment (excessive
caster angle)
2. Too little clearance between the
king pin and bushing
3. Inverse installation of the thrust
bearing
4. Inadequate lubrication of the
front axle parts
5. Over tight or loose connection
of the bull
6. Too low tire pressure
7. Excessive abrasion of the tire
1. Check and adjust the wheel alignment
2. Check and adjust the clearance
3. Adjust the installation
4. Add the grease to the front axle
5. Check and lubricate the bulb stud
6. Inflate to the rated pressure
7. Replace the tire
There has oil spillage in
the steering oil tank
1. Clogging of the strainer or the
filter element
2. There has air in the pipeline
1. Clean the filter strainer or replace the
filter element
2. Add the oil and make the exhaustion
