Nortrac XT20 Owner's Manual page 42

Fault
(1) Disengaging lever heads are not on the
(2) Oil stain on the friction lining and clutch
3. Tractor
shakes when
(3) The clutch plate is severely warped.
starting.
(4) The bolt for the flywheel and the clutch is
2.16.1.2
Gearbox fault and troubleshooting
Fault
(1) Clutch is not disengaged completely.
1 Putting the
(2) Gearbox interlocking pull rod is too long.
tractor in to
(3) Shift lever fork is severely worn.
gear is difficult
(4) The meshing bush end surface and gear
or impossible.
(1) The gearbox interlocking pull rod is too
(2) Locating slot of the shift fork severely
2 Shift
disengages
(3) The pressure of interlocking pin spring is
automatically.
(4) The bearing on the gear shaft is worn.
(5) Spline of tooth seat worn.
(1) Shift lever fork is worn.
(2) Gearbox guide plate is severely worn.
3 Random (3) The fork slot of the fork and meshing bush
shift.
(4) Locating pin of interlocking pin and shift
(1) The gear wear is severe, the tooth surface is
5. Noise or
knocking
(2) Bearing is worn or damaged.
sound in the
(3) Lube oil is not efficient, or the quality is
gearbox.
2.16.1.3 Rear Axle and Brake Faults and Troubleshooting
Fault
(1) The bearing play of the small conical
(2) Gear engagement is abnormal.
1. An increase
(3) Bearing of conical gear pair or the actual
in noise in the
central drive.
(4) Differential gear shaft is worn or stuck.
(5) Planetary gear or gasket is worn.
(6) Differential gear broken or damaged.
Operation Description
Fault Reasons
same plane.
plate.
loose.
Table 2-5 Gearbox Faults and Troubleshooting
Fault Reasons
end surface is worn or broken.
short.
worn.
inadequate.
is worn.
fork is severely worn.
peeled or the wheel tooth is broken .
not in compliance with the requirements.
2 Rear Axle and Brake Faults and Troubleshooting
Fault reasons
gear is too large.
gear is damaged.
(1) Adjust according to requirements.
(2) Clean friction lining and clutch plate.
(3) Replace driven disk.
(4) Immediately stop the vehicle and
troubleshoot.
(1) Troubleshoot according to the clutch
type.
(2) Shorten the gearbox interlocking pull
rod.
(3) Replace the shift lever.
(4) Replace or repair.
(1) Lengthen the gearbox 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) Repair or replace the shift lever.
(2) Replace the gearbox guide plate.
(3) Replace the fork and meshing bush.
(4) Replace the interlocking pin and shift
fork shaft.
(1) Replace gear.
(2) Replace bearing.
(3) Fill or replace lube oil.
(1) Adjust according to requirements.
(2) Readjust according to requirements.
(3) Replace bearing or gear.
(4) Replace the differential gear shaft.
(5) Replace the planetary gear or shims.
(6) Replace the differential bearing.
36
Troubleshooting
Troubleshooting
Troubleshooting