Nortrac 40XT - Four-Wheel Drive System Faults and Troubleshooting

Operation Description
44
Fault
Causes
Troubleshooting
is too small
and add if necessary
(3) Readjust the gear backlash
Abnormal noises from
the final drive
(1) The bearing, gear or shaft is damaged
(1) Replace the bearing, gear
or shaft
No braking control
(1) The free play of the brake pedal is
too large
(2) The brake shoes are severely worn
or warped
(3) The engagement of the brake pedal
is misadjusted
(1) Readjust the free play of the
brake pedal
(2) Replace the brake shoes
(3) Adjust the engagement of the
brake pedal according to
the specifications
Brakes get hot
(1) The brake shoes do not return
(2) The brake shoes do not completely
disengage from the brake drums
(1) Replace the return spring
(2) Make adjustments according
to requirements
The tractor pulls in one
direction when braking
(1) The free play of the left and right brake
pedals are not the same
(2) The brake shoes on one side are damaged
or worn unevenly
(3) The air pressure of the two rear tires is not
the same
(1) Adjust
(2) Replace the brake shoes
(3) Check and inflate the tires
according to the specifications
2.18.1.4 Four-Wheel Drive System Faults and Troubleshooting
Table 2-5 Front Drive Axle Faults and Troubleshooting
Fault
Causes
Troubleshooting
The front tire has
excessive wear
(1) The rim or the radial plate of the front
wheel is deformed
(2) The toe-in has been improperly adjusted
(3) The bearing pins of the steering knuckle
and the oil cylinder are severely worn
(4) The tire pressure is too low
(5) The front drive axle does not disengage
during operation
(6) The drive tread of the front tire is
mounted backwards
(1) Align the front wheel rim or
the radial plate
(2) Adjust the toe-in
(3) Replace the bearing pin(s)
(4) Inflate the tires according to
the specifications
(5) Disengage the front drive axle
or repair it
(6) Reinstall the tire according
to requirements
The front wheel shakes
(1) The fastening nuts and bolts for the
ball pins, oil cylinder and the steering arm
are loose
(2) The toe-in has been improperly adjusted
(3) The clearance of the bearing is too great,
or the bearing is severely worn
(4) The rim of the front wheel is
severely deformed
(1) Check and tighten
(2) Adjust the toe-in
(3) Adjust or replace the bearing
(4) Align or replace the front
wheel rim
Loud noise (four wheel
(1) Engagement trace of the front central
(1) Readjust the gear