Problem 12: Transmission Will Not Shift into
High Gear in SELF-DEPLOY Mode
Probable Cause(s):
• Machine in EARTHMOVING mode
• Drive belts too tight
• Engine power lower than normal
1. Machine in EARTHMOVING mode:
a. With the blackout light switch in the STOP
LIGHT or SERVICE DRIVE position, observe the
self-deploy indicator, the blade down indicator,
and the blade down alarm. If the self-deploy
indicator is not illuminated, the blade down
indicator is illuminated, and the blade down
alarm is sounding, go to Step b. If the self-
deploy indicator is illuminated, the blade down
indicator is not illuminated, and the blade down
alarm is not sounding, go the Step 2.
b. Fully raise the blade and observe the self-deploy
indicator, the blade down indicator and the
blade down alarm. If the self-deploy indicator is
not illuminated, the blade down indicator is
illuminated, and the blade down alarm is
sounding, go to Step d. If the self-deploy
indicator is illuminated, the blade down indicator
is not illuminated, and the blade down alarm is
not sounding, go the Step 2.
c. Operate the machine. If the machine still will not
go into high gear, go to Step 2.
d. Report to Unit Maintenance that the machine is
stuck in the EARTHMOVING mode.
2. Drive belts too tight:
a. Determine if the procedures for emergency drive
belt tension or emergency suspension charging
have been performed recently. If either of these
procedures have been completed, go to Step b.
If these procedures have not been completed,
go to Step 3.
b. Inform Unit Maintenance that the suspension
system must be recharged as soon as possible.
3. Engine power lower than normal:
a. Refer to “Problem 10, Engine Power Less Than
Normal” in this section. If low engine power is
determined not to be the problem, go to Step b.
b. Refer the shifting problem to Unit Maintenance
for repair.
Problem 13: Transmission Overheats During
Normal Operation
Probable Cause(s):
• Low power train oil level
• Engine or hydraulic system overheating
1. Low power train oil level:
a. Check the power train oil level. If the power train
oil level is low, go to Step b. If the power train oil
level is normal, go to Step 2.
b. Check for visible leaks in the power train
hydraulic system. If leaks are found, go to Step
d. If no leaks are found, go to Step c.
c. Add the appropriate amount and grade of oil to
the power train hydraulic system, and operate
the machine again. If the power train oil
continues to overheat, go to Step 2.
d. Refer the problem to Unit Maintenance for
repair.
2. Engine or hydraulic system overheating:
a. Determine if the engine or the hydraulic system
is overheating. If either or both of these systems
are overheating, have the problem corrected. If
neither of these systems are overheating, go to
Step b.
b. Refer the overheating problem to Unit
Maintenance for repair.
Problem 14: Parking Brake Will Not Release
Probable Cause(s):
• Service brake not engaged or transmission not in
NEUTRAL
• Emergency brake release valve closed
1. Service brake not engaged or transmission not in
NEUTRAL:
a. Move the transmission control lever to
NEUTRAL. Go to Step b.
95
Operation Section
Troubleshooting
TM5-2430-200-10
