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 1203 of 1313
FOUR PRESSURE MODE LIGHTS FLASHING - Continued
STEP
1.
DO AIR LINES BETWEEN WHEEL VALVE AND WHEEL RIM HAVE CRACKS OR OTHER DAMAGE?
a.
Measure and record pressure of each tire (TM 9-2320-272-10).
T0419DAA
AIR SEALS
WHEEL
VALVE
Figure 1.
Wheel Valve.
b.
Refer to point to point schematics.
WARNING
Air system components are subject to high pressure. Always relieve pressure before
loosening or removing air system components. Failure to comply may result in injury or
death to personnel.
c.
For all tires significantly outside pressure limits, inspect air lines between wheel valve and wheel rim for
cracks and damage.
CONDITION/INDICATION
DO AIR LINES BETWEEN WHEEL VALVE AND WHEEL RIM HAVE CRACKS OR OTHER DAMAGE?
DECISION
YES - Front air lines damaged. Replace damaged air line (Volume 3, WP
0490). Go to Step (10) to verify problem
is solved.
YES - Rear air lines are damaged. Replace damaged air line (Volume 3, WP
0491). Go to Step (10) to verify
problem is solved.
NO - Go to Step (2).
TM 9-2320-272-23-1
0145
0145-2
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