Common trouble and elimination
6-5
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.
Damage or 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
Summary of Contents for XMQ6900 Series
Page 19: ...Operation Instruction 3 1 Figure 17 Set MotPPR Figure 18 Clear Trip A Figure 19 Clear Trip B...
Page 31: ...Operation Instruction 3 3 CC350 355 series A C Operation...
Page 32: ...Operation Instruction 3 3...
Page 33: ...Operation Instruction 3 3...
Page 34: ...Operation Instruction 3 3...
Page 35: ...Operation Instruction 3 3...
Page 44: ...Operation Instruction 3 4 1 9 Retarder operation...
Page 45: ...Operation Instruction 3 4 Section 1 1 2 1 10 Stopping parking...
Page 49: ...Operation Instruction 3 4 1 14 1 Emergency operation...
Page 50: ...Operation Instruction 3 5 WABCO ABS BASIC INTRODUCTION...
Page 51: ...Operation Instruction 3 5...
Page 52: ...Operation Instruction 3 5...
Page 53: ...Operation Instruction 3 5...
Page 54: ...Operation Instruction 3 5...
Page 55: ...Operation Instruction 3 6 ECAS System Introduction for tourist bus use 1 System introduction...
Page 56: ...Operation Instruction 3 6 3 System function...
Page 57: ...Operation Instruction 3 6...
Page 169: ...Appendix 7 6 Air braking schematic diagram...
Page 170: ...Appendix 7 7 Electric schematic diagram of the complete car 1...
Page 171: ...Appendix 7 7 Electric schematic diagram of the complete car 2...
Page 172: ...Appendix 7 7 Electric schematic diagram of the complete car 3...
Page 173: ...Appendix 7 7 Electric schematic diagram of the complete car 4...
