Operation Description
43
Gearshift disengages
automatically
(1) The gearshift interlocking rod is too short
(2) The locating slot of the shifting fork shaft
is severely worn
(3) The spring pressure of the interlocking
latch is insufficient
(4) The bearing on the gear shaft is worn,
making the shaft tilt
(5) The spline of the tooth holder is worn
(1) Lengthen the gearshift
interlocking pull rod
(2) Replace the shift fork
(3) Adjust or replace the
interlocking pin spring
(4) Replace the bearing
(5)Replace the tooth holder
(1) The shift lever fork is worn
(2) The gear guide plate is severely worn
(3) The fork slot of the shifting fork and the
meshing bush are worn
(4) Locating pin of interlocking pin and shift
fork is severely worn
(1) Repair or replace the
shift lever
(2) Replace the gearbox
guide plate
(3) Replace the shifting fork and
the meshing bushing
(4) Replace the interlocking pin
and the shift fork shaft
Noise or impact sound
from the gear box
(1) The gear is excessively worn and/or the
tooth surface has chipped off
(2) The bearing is badly worn or damaged
(3) The lubricating oil is insufficient or
oil quality does not conform to
the specifications
(1) Replace the gear
(2) Replace the bearing
(3) Fill or replace lube oil
2.18.1.3 Rear Axle Faults and Brake Faults Troubleshooting (Table 2-4)
Table 2-4 Rear Axle Faults and Troubleshooting
Increased noise in the
central drive
(1) The bearing play of the small conical gear
is too large
(2) Gear engagement is abnormal
(3) The bearing of the conical gear pair or the
gear pair is damaged
(4) The differential shaft is worn or locked
(5) The planetary gear or gasket is worn
(6) The differential bearing is worn
or damaged
(1) Adjust according
to requirements
(2) Readjust according
to requirements
(3) Replace the bearing or
the gear
(4) Replace the differential
gear shaft
(5) Replace the planetary gear
or gasket
(6) Replace the
differential bearing
Small conical gear
and the differential
bearing overheat
(1) The pre-load force is too high
(2) Poor lubrication
(3) Backlash at gear pair side of conical gear
(1) Readjust the pre-load force of
the bearing
(2) Check the lubricating oil level
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