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 554 of 1313
UNEVEN TIRE WEAR - Continued
CONDITION/INDICATION
ARE WHEEL BEARINGS IN GOOD OPERATING CONDITION?
DECISION
NO - Moderate play, adjustment required. Adjust wheel bearing(s) (Volume 3, WP
0483). Go to Step (4) to verify
problem is solved.
NO - Excessive play, front wheel bearing damage. Replace damaged wheel bearings
M939/A1 (Volume 3, WP
0479), M939/A2 (Volume 3, WP
0481). Go to Step (4) to verify problem is solved.
NO - Excessive play, rear wheel bearing damaged. Replace rear wheel bearings
M939/A1 (Volume 3, WP
0480), M939/A2 (Volume 3, WP
0482). Go to Step (4) to verify problem is solved.
YES - Go to Step (4) to verify problem is solved.
STEP
4.
IS YOUR ORIGINAL UNEVEN TIRE WEAR PROBLEM STILL PRESENT?
a.
Ensure vehicle is returned to normal operating condition.
b.
Check to see if your uneven tire wear problem still exists.
CONDITION/INDICATION
IS YOUR ORIGINAL UNEVEN TIRE WEAR PROBLEM STILL PRESENT?
DECISION
YES - Notify supervisor.
NO - Problem fixed.
END OF WORK PACKAGE
TM 9-2320-272-23-1
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