Nortrac 35XT - Tractor Faults and Troubleshooting

Maintenance Instructions
42
Fault Causes Troubleshooting
3. The tractor shakes when
starting.
(1) The heads of the three clutch
fingers are not in the same plane.
(2) The clutch plate and the clutch
fingers have grease on them.
(3) The clutch fingers are warped.
(4) The fastening screw for the
flywheel and the clutch has come
loose.
(1) Make adjustments according to
requirements.
(2) Clean the friction plate and the clutch
fingers with solvent.
(3) Replace the clutch fingers.
(4) Stop the tractor immediately and repair
the fault.
2.16.1.2 Gearbox Faults and Troubleshooting
Table 2-3 Gearbox Faults and Troubleshooting
Fault Causes Troubleshooting
1. Putting the tractor into
gear is difficult or
impossible.
(1) Clutch has not disengaged completely.
(2) Gearshift interlocking rod is too long.
(3) The shift lever fork is severely worn.
(4) The end face of the engagement sleeve or
the end face of the gear is worn or broken.
(1) Troubleshoot according to
the clutch type.
(2) Shorten the gearshift
interlocking pull rod.
(3) Replace the shift lever.
(4) Replace or repair.
2. 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.
3. Random gear shifting.
(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.
4. 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.