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 1247 of 1313
SYSTEM FAILS TO DEFLATE, PARTIALLY DEFLATES, OR TIRE PRESSURES ARE IMBALANCED -
Continued
STEP
7.
DO HUB AIR SEALS LEAK?
a.
Refer to point to point schematics.
T0898DAA
AIR SEALS
WHEEL
VALVE
Figure 7.
Hub Air Seals.
b.
Perform leak test (Volume 3, WP
0487) on hub air seals.
CONDITION/INDICATION
DO HUB AIR SEALS LEAK?
DECISION
YES - Front air seals leak. Replace faulty seals (Volume 3, WP
0481). Go to Step (11) to verify problem is
solved.
YES - Rear air seals leak. Replace faulty seals (Volume 3, WP
0482). Go to Step (11) to verify problem is solved.
NO - Go to Step (8).
TM 9-2320-272-23-1
0148
0148-8
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