TM-9-2320-361-24-1

2-1/2 TON, 6X6, M44A2 SERIES TRUCKS

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2

AUGUST 2006

  TM-9-2320-361-24-1 - Page 108 of 1176

MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. TRANSMISSION NOISY
1. Ensure Power Takeoff (PTO) is
not engaged, if applicable.
2. Check propeller shafts condition.
Remove propeller shafts and
inspect (WP 0139 00).
3. Check clutch for proper
adjustment.
4. Check transmission fluid level
(WP 0020 00).
5. Drain transmission fluid and
check for signs of broken gears,
metal shavings, and
contamination (WP 0020 00).
6. Check mounting of transmission
to engine (WP 0132 00).
If PTO is engaged, disengage.
If propeller shaft assemblies are
worn or defective, repair or replace
(WP 0139 00).
Adjust clutch linkage as necessary
(WP 0047 00).
Fill transmission fluid to proper level
(WP 0020 00).
If broken gears or metal shavings are
found, replace transmission
(WP 0131 00 and WP 0132 00).
Tighten loose components or replace
damaged components (WP 0132 00).
2. TRANSMISSION LEAKS
OIL
1. Check transmission fluid level
(WP 0020 00).
2. Check drainplug for leaks.
3. Check breather for restrictions.
4. Check transmission output seal
for leaks.
If fluid level is too high, drain to
proper level (WP 0020 00).
If drainplug is leaking, tighten.
If breather is restricted, refer to
WP 0128 00.
Replace seals (WP 0450 00).
3. CLUTCH PEDAL WILL
NOT TRAVEL OR
DEPRESS
1. Check transmission fluid level
(WP 0020 00).
2. Check clutch linkage to ensure it
is connected and properly
adjusted (WP 0047 00).
If fluid level is low, add fluid
(WP 0020 00).
Adjust clutch linkage as necessary
(WP 0047 00).
TM 9-2320-361-24-1
0006 00
0006 00-12
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)
Table 7. Transmission Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. VEHICLE CREEPS WITH
CLUTCH DEPRESSED
Check clutch pedal free travel.
Clutch pedal should have 1.5–2 in.
(3.8–5 cm) free travel.
1. If clutch requires adjustment, refer
to WP 0047 00.
2. If free travel will not adjust, check
for bent or broken parts. Replace
damaged parts (WP 0047 00).
Table 8. Clutch Troubleshooting Procedures.


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