TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 1056 of 1313
VEHICLE REAR BRAKES GRAB OR DRAG - Continued
STEP
2.
IS THERE OIL CONTAMINATION ON REAR SERVICE BRAKES?
Visually check brakeshoe lining and drum for oil contamination.
T0235DAA
BRAKE
DRUM
BRAKE
SHOE
Figure 2.
Brake Drum.
CONDITION/INDICATION
IS THERE OIL CONTAMINATION ON REAR SERVICE BRAKES?
DECISION
YES - Replace brakeshoe linings (Volume 3, WP
0426) and axle seals M939/A1 (Volume 3, WP
0480),
M939A2 (Volume 3, WP
0482), and clean drum M939/A1 (Volume 3, WP
0480),
M939A2 (Volume 3, WP
0482). Go to Step (7) to verify problem is solved.
NO - Go to Step (3).
TM 9-2320-272-23-1
0122
0122-3
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