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 589 of 1313
SHIMMY - Continued
STEP
3.
ARE WHEEL BEARINGS IN GOOD OPERATING CONDITION?
a.
Visually check front and rear wheels bearings for adjustment and damage.
T0562DAA
Figure 3.
Wheel Bearing Assembly.
b.
Raise vehicle wheels until they are off the ground M939 (Volume 3, WP
0484),
M939A1/A2 (Volume 3, WP
0485).
NOTE
Excessive play indicates improperly adjusted or damaged bearings.
c.
Lift up on bottom of tire using a prybar to determine bearing play.
CONDITION/INDICATION
ARE WHEEL BEARINGS IN GOOD OPERATING CONDITION?
DECISION
NO - Moderate play, adjustment required. Adjust wheel bearing(s) (Volume 3, WP
0483).
NO - Excessive play, front wheel bearing damaged. Replace damaged wheel bearings
M939/A1 (Volume 3, WP
0479), M939A2 (Volume 3, WP
0481). Go to Step (6) to verify problem is solved.
NO - Excessive play, rear wheel bearing damaged. Replace rear wheel bearings
M939/A1 (Volume 3, WP
0480), M939A2 (Volume 3, WP
0482). Go to Step (6) to verify problem is solved.
YES - Go to Step (4).
TM 9-2320-272-23-1
0055
0055-4
Back to Top
