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 1244 of 1313
SYSTEM FAILS TO DEFLATE, PARTIALLY DEFLATES, OR TIRE PRESSURES ARE IMBALANCED -
Continued
STEP
4.
DO AIR LINES BETWEEN PNEUMATIC CONTROLLER, QUICK RELEASE VALVES, AND WHEELS HAVE
CRACKS OR OTHER DAMAGE?
a.
Refer to point to point schematics.
T0429DAA
QUICK
RELEASE
VALVE
RELIEF
VALVE
PNEUMATIC
CONTROLLER
(CAB)
QUICK
RELEASE
VALVES
Figure 4.
Air Lines.
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.
b.
Inspect air lines between quick release valves and pneumatic controller for cracks and damage.
CONDITION/INDICATION
DO AIR LINES BETWEEN PNEUMATIC CONTROLLER, QUICK RELEASE VALVES, AND WHEELS HAVE
CRACKS OR OTHER DAMAGE?
DECISION
YES - Replace damaged air lines (Volume 5, WP
0805). Go to Step (11) to verify problem is solved.
NO - Go to Step (5).
TM 9-2320-272-23-1
0148
0148-5
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