King Long XMQ6127 series, Operating Manual

Page: 142 / 162

Common trouble and elimination
C-10
Rear axle
Fault
symptom
Possible cause Eliminating method
Abnormal
sound from
the rear
axle
(abnormal
sound)
When the vehicle is starting
1)
Excessive clearance between
the differential gear
2) Excessive clearance between
the driving and the driven gear
3) Looseness of the connecting
flange and the propeller shaft
4) Too small pretightening force of
the drive gear bearing
5) Looseness of the fixing bolt and
nut of the driving gear
When the vehicle turning
1) There has abrasion or damage
to the axle shaft gear, driving
gear, spider, thrust shim and the
axle shaft bearing and etc
2) Too low oil level
1
）
Adjust the clearance
2
）
Adjust the clearance
3
）
Tighten it to specified torque
4
）
Adjust the pretightening force
5
）
Tighten it to specified torque
1
）
Adjust or replace the faulted parts
2
）
Fill up the lubrication
Abnormal
sound of
the rear
axle
( improper
sound)
When the vehicle is running:
1)
Excessive clearance between
the driving and the driven gear
2) Abrasion or damage of the
bearing
3) Abrasion or damage of the gear
4) Too low oil level
When running with inertance
1) Too small clearance between
the driving and the driven gear
2) Abrasion or damage of the
bearing
3) Incorrect gear engaging position
4) Too low oil level
1) Adjust the clearance
2)
Replace the bearing
3) Make adjustment or replacement
4) Fill up the lubrication
1) Adjust the clearance
2)
Replace the bearing
3) Adjust or replace the faulted parts
4) Fill up the lubrication
Leakage of
the rear
axle
lubrication
1. Abrasion, looseness or damage
of the oil seal
2. Looseness of the differential
lock bolt or damage of the
gasket
3. Damage of the differential
carrieer mating surface
Looseness of the oil draining plug or
damage of the gasket
1. Replace the oil seal
2.
Tighten to specified torque and
replace gasket
3. Make trimming and replace the
differential housing if necessary
4. Replace the gasket and tighten
screw plug to specified torque