TM 5-3800-205-10-2
TROUBLESHOOTING PROCEDURES - CONTINUED
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Table 1. Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
DIFFERENTIAL LOCK CONTROL - CONTINUED
e. With tractor and water
1.
Differential Lock Control Will Not
distributor in a straight
Engage When Pedal is Pressed -
position, push and hold
Continued.
differential lock pedal
down.
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 tank.
c. Apply parking brake.
d. With tractor and water
distributor in a straight
position, slowly move
machine while tapping
differential lock pedal.
