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 150 of 1176
TM 9-2320-361-24-1
0008 00
0008 00-22
MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. TRANSFER CASE
LEAKS OIL (Contd)
6. If transfer case rear output
bearing cover gasket is leaking
replace gasket (WP 0451 00).
7. If countershaft rear bearing
cover gasket is leaking, remove
transfer case and replace gasket
(WP 0138 00 and WP 0451 00).
8. If rear output shaft oil seal is
leaking remove transfer case
(WP 0138 00) and replace seal
(WP 0451 00).
9. If rear output shaft bearing
retainer gasket is leaking,
remove transfer case
(WP 0138 00) and replace gasket
(WP 0451 00).
10. If top cover gasket is leaking,
replace (WP 0451 00).
11. If PTO is leaking oil, replace
(WP 0348 00).
12. If transfer case oil leaks
continue, remove transfer case
(WP 0138 00) and disassemble
(WP 0451 00). Check transfer
housing halves for defects.
Replace defective components.
4. TRANSFER CASE
NOISY
1. Drain transfer case fluid
(WP 0020 00) and check for signs
of broken gears, metal shavings,
and contamination.
2. Check transfer case operation in
high and low range and in
neutral.
If broken gears, metal shavings, or
contamination are found in transfer
case or on magnetic drain plug,
replace transfer case (WP 0138 00).
If transfer case is defective, replace
(WP 0138 00).
5. TRANSFER CASE
GRINDS OR POPS
OUT OF GEAR
DURING NORMAL
VEHICLE OPERATION
Drain transfer case fluid
(WP 0020 00) and check for signs of
broken gears, metal shavings, and
contamination.
If broken gears, metal shavings, or
contamination are found in transfer
case or on magnetic drain plug,
replace transfer case (WP 0138 00).
Replace transfer case (WP 0138 00).
Table 6. Transfer Case Troubleshooting Procedures (Contd).
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