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 1076 of 1313
NO AIR PRESSURE (WARNING BUZZER SOUNDING, AIR PRESSURE NOT BUILDING TO NORMAL
OPERATING RANGE AS INDICATED BY GAUGES) - Continued
T0256DAA
Outlet Line
Figure 3.
Air Compressor Outlet Line.
c.
Feel compressor outlet line for heat.
d.
If compressor outlet line is hot (under great pressure), compressor is operating normally.
e.
If compressor outlet line is not hot, carefully loosen fitting until air is heard escaping.
f.
If air is escaping, compressor is operating normally.
CONDITION/INDICATION
IS AIR COMPRESSOR OPERATING NORMALLY?
DECISION
NO - Notify supervisor that air compressor is faulty. Action may not be possible at this level of maintenance.
YES - Go to Step (3).
TM 9-2320-272-23-1
0126
0126-5
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