King Long XMQ6127J series, Operating Manual

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Common trouble and elimination
C-13
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