TM 5-3805-255-14
0016
Table 4. Transmission Troubleshooting Procedures for the H100C Loader.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Before troubleshooting problems with the transmission, perform the following
diagnostic checks:
Engine output.
Transmission sump oil level.
Cleanliness of oil and oil filter.
Airflow through oil cooler.
Condition of all oil lines and fittings.
Condition of all wiring and connections.
Proper linkage positioning of all valves and levers.
All drive lines and mounting brackets for tightness.
1. Check for low transmission oil
Add correct amount and type of fluid
1. Converter Stall.
level.
(WP 0018). If problem still exists, go
to step 2.
2. Check for foaming oil.
a. Low oil level. Add oil as
needed (WP 0018).
b. Water in oil. Drain oil
c. Oil line suction leak.
d. Improper oil. If problem still
exists, go to step 3.
3. Check for plugged or restricted
Replace lines (WP 0047). If problem
accessory drive and torque
still exists, notify Sustainment
converter housing lines.
Maintenance.
1. Check for improper loader
a. Operate in correct range.
2. High Oil Temperature.
operation.
b. Downshift into lower range.
c. If loader remains in stall too
long or if problem still exists,
go to step 2.
2. Check transmission oil level.
Add correct amount and type of fluid
(WP 0018). If problem still exists, go
to step 3.
3. Check for foaming oil and air
a. Add correct amount and type
leaks in suction lines.
of fluid (WP 0018).
b. Repair or replace suction lines.
If problem still exists, go to
step 4.
4. Check for clogged oil cooler.
Clean or replace oil cooler (WP 0036).
If problem still exists, notify Sustain-
ment Maintenance.
