TM-9-2320-283-34-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
DECEMBER 1983
TM-9-2320-283-34-1 - Page 50 of 624
TM 9-2320-283-34-1
TROUBLESHOOTING
2-7.
TROUBLESHOOTING PROCEDURES (Continued).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8.
OIL LEAKING AT OUTPUT SHAFT.
Check rear oil seal and rear cover for damage or wear.
Repair rear cover (para 3-46).
9.
TRANSMISSION SLIPS IN ALL FORWARD GEARS.
Step 1.
Check for low main oil pressure (para 3-57).
a.
Replace internal oil filter (TM 9-2320-283-20).
b.
Replace valve body (para 3-30 and para 3-54).
c.
Replace or repair torque converter pump (para 3-31, para 3-38, and para 3-53).
Step 2.
Check forward clutch for damage or wear.
Replace or repair forward clutch (para 3-32, para 3-40, and para 3-51).
Step 3.
Check front support for damage or wear.
Replace or repair front support (para 3-39).
10.
TRANSMISSION SLIPS IN FIRST AND REVERSE ONLY.
Check low-reverse clutch for damage or wear.
Replace low-reverse clutch (para 3-33 and para 3-50).
11.
TRANSMISSION SLIPS IN FIFTH AND REVERSE ONLY.
Check fourth clutch for damage or wear.
Replace or repair fourth clutch (para 3-32, para 3-41, and para 3-51).
2-6
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