TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 135 of 1417
ABS - CODE S2A 23 (LEFT SIDE - BLUE CHANNEL) - Continued
STEP
2.
ARE WHEEL BEARINGS LOOSE OR DAMAGED?
a.
Raise rear-rear wheels until they are off the ground M939 (Volume 3, WP
0484),
M939A1/A2 (Volume 3, WP
0485). Support vehicle with jack stands.
T0852DAA
WHEEL
BEARINGS
Figure 1.
Wheel Bearing.
b.
Check wheel bearings for excessive play or roughness.
CONDITION/INDICATION
ARE WHEEL BEARINGS LOOSE OR DAMAGED?
DECISION
YES - Replace or adjust wheel bearings (Volume 3, WP
0483). Go to Step (5) to verify problem is solved.
NO - Go to Step (3).
TM 9-2320-272-23-2
0166
0166-2
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