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 1183 of 1313
TWO PRESSURE MODES INDICATED WITH STEADY MODE LIGHTS - Continued
STEP
7.
DO AIR LINES BETWEEN QUICK RELEASE VALVES AND PNEUMATIC CONTROLLER HAVE CRACKS
OR OTHER DAMAGE?
a.
Refer to point to point schematics.
T0978DAA
QUICK
RELEASE
VALVES
PNEUMATIC
CONTROLLER
(CAB)
RELIEF
VALVE
QUICK
RELEASE
VALVE
Figure 5.
Quick Release Valves And Pneumatic Controller.
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 QUICK RELEASE VALVES AND PNEUMATIC CONTROLLER HAVE CRACKS OR
OTHER DAMAGE?
DECISION
YES - Replace damaged air lines (Volume 5, WP
0805). Go to Step (23) to verify problem is solved.
NO - Go to Step (8).
TM 9-2320-272-23-1
0144
0144-6
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