Common trouble and elimination
C-11
Fault
symptom
Possible cause
Eliminating method
Leakage of
the rear
axle
lubrication
4.
Blocking or damage of the
ventilation plug
5.
Axle housing cracks
6.
Damageor distortion of the
coupling flange sealing surface
7.
Malfunction of bearing leads to
radial run out of coupling
flange
8.
Axle housing distortion caused
by overloading
5.
Clean or replace the ventilation
plug
6.
Repair or replace the axle housing
7.
Adjust or replace the coupling
flange
8.
Replace the bearing
9.
Adjust or replace the axle housing
Hub
bearing
jamming
1.
Excessive pre-tightening force
of the hub bearing
2.
Inadequate lubrication of the
bearing or incorrect usage of the
grease
3.
The bearing is defiled by the
dust
4.
Water entering bearing due to
malfunction of sealing ring
1.
Adjust the pre-tightening force
2.
Intensify the lubrication or replace
the grease
3.
Clean and intensify the lubrication
4.
Replace the sealing ring
Front axle and steering system
Fault
symptom
Possible cause
Eliminating method
Steering
wheel
shimmy
1.
The steering system
1)
Steering gear housing bolt or
steering column supporting
loose
2)
Looseness of the steering
connection point
3)
Excessive clearance of the
steering gear housing
2.
The front axle
1)
Umbalance or abrasion of the
rim, the spoke and the wheel
2)
Abrasion of the front wheel
bearing
3)
Excessive abrasion of the king
pin or the bushing
4)
Deformation of the knuckle
5)
Improper wheel alignment
1
）
Tighten to specified torque
2
）
Adjust the junction
3
）
Adjust the clearance
1
）
Balance all the components and
replace faulted components.
2
）
Replace the bearing
3
）
Adjust or replace the faulted parts
4
）
Replace the knuckle
5
）
Check and adjust the wheel
alignment
Summary of Contents for XMQ6127J series
Page 30: ...Technical parameter and complete vehicle description 0 K 1...
Page 31: ...Technical parameter and complete vehicle description 0 K 1 3 System Function...
Page 32: ...Technical parameter and complete vehicle description 0 K 1...
Page 33: ...Technical parameter and complete vehicle description 0 K 1...
Page 136: ...Appendix A 4 Air braking schematic diagram...
Page 137: ...Appendix A 4 Electric schematic diagram of the complete vehicle 1...
Page 138: ...Appendix A 5 Electric schematic diagram of the complete vehicle 2...
Page 139: ...Appendix A 5 Electric schematic diagram of the complete vehicle 3...
Page 140: ...Appendix A 5 Electric schematic diagram of the complete vehicle 4...
