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 1094 of 1313
AIR PRESSURE EXCEEDS MAXIMUM (GAUGES SHOW OVER 130 PSI [896 KPA]), SAFETY VALVE OPENS
TO RELEASE PRESSURE - Continued
STEP
2.
IS GOVERNOR SIGNAL LINE IN GOOD CONDITION?
a.
Visually check governor signal line for leaks and crimping. Refer to point to point schematics.
T0267DAA
Air Governor
Signal Line
Figure 2.
Air Governor Signal Line.
b.
Remove governor signal line and inspect for clogging.
CONDITION/INDICATION
IS GOVERNOR SIGNAL LINE IN GOOD CONDITION?
DECISION
NO - Clear or replace damaged air line (Volume 5, WP
0805). Go to Step (4) to verify problem is solved.
YES - Go to Step (3) to verify problem is solved.
TM 9-2320-272-23-1
0129
0129-3
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