TM 5-3800-205-10-1
TROUBLESHOOTING PROCEDURES - CONTINUED
0012 00
Table 1. Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
DIFFERENTIAL LOCK CONTROL - CONTINUED
f. Repeat step d. Machine
should resist turning when
differential lock is engaged.
g. Release differential lock
pedal.
1. If problem still exists, go to test
2.
Differential Lock Control Will Not
1. Turn machine slightly while
step 2.
Disengage When Pedal is Released.
decreasing engine RPM as an
aid in unlocking differential
lock control.
2. Perform differential lock
2. If problem still exists, or if
operation check as follows:
was
observed
during test step e, notify Unit
Maintenance.
WARNING
If machine is parked indoors, DO NOT run engine unless exhaust fumes are vented to the outside.
Failure to follow this warning may cause injury or death due to carbon monoxide poisoning.
a. Start engine and allow air
pressure to reach cut-out
pressure of 125 psi (860
kPa)
b. Lift empty bowl.
c. Apply parking brake.
d. With tractor and scraper in
a straight position, slowly
move
machine
while
tapping differential lock
pedal.
e. Machine should not resist
turning when differential
lock is released.
f. Release differential lock
pedal.
