Operating Instructions
3.17.1.2 Faults and Troubleshooting Methods of Transmission
Table 3-4 Faults and Troubleshooting Methods of Transmission
1. Difficulty in
gear
engagement or
gear
engagement
failure
(1) The clutch is not disengaged completely.
(2) The gear shift interlocking lever is too long.
(3) The gear shift lever fork head is seriously
worn.
(4) The engagement sleeve end face and the
gear end face are worn or damaged.
(1) Troubleshoot according to clutch
troubleshooting methods
(2) Appropriately shorten the gear shift
interlocking lever.
(3) Replace the gear shift lever.
(4) Replacement or repair
2. Spontaneous
out-of-gear
(1) The gear shift interlocking lever is too short.
(2) The shift fork shaft locating groove is
seriously worn.
(3) The interlocking pin spring pressure is
insufficient.
(4) The bearing on the gear shaft is worn to tilt
the shaft.
(5) The gear seat spline is worn.
(1) Lengthen the gear shift interlocking
lever appropriately.
(2) Replace the shift fork shaft
(3) Adjust or replace the interlocking pin
spring.
(4) Replace the bearing
(5) Replace the gear base
3. Incorrect
gear
engagement
(1) The gear shift lever fork head is worn.
(2) The shift guide plate groove is seriously
worn.
(3) The shift groove of shift fork and
engagement sleeve is worn.
(4) The interlocking pin and the shift fork shaft
locating groove are worn.
(1) Repair or replace the shift lever
(2) Replace the shift guide plate.
(3) Replace the shift fork and engagement
sleeve.
(4) Replace the interlocking pin and shift
fork shaft.
4. Noise or
knocking sound
in gearbox
(1) The gear is excessively worn and the tooth
surface is peeled off.
(2) Serious wear or damage to bearings
(3) The lubricating oil is insufficient or the oil
quality is not in conform to the regulations.
(1) Replace the gear
(2) Replace the bearing
(3) Add or replace lubricating oil
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