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 1073 of 1313
NO AIR PRESSURE (WARNING BUZZER SOUNDING, AIR PRESSURE NOT BUILDING TO NORMAL
OPERATING RANGE AS INDICATED BY GAUGES) - Continued
STEP
1.
ARE AIR LINES OR FITTINGS LEAKING?
a.
Start engine.
T0254DAA
Sec.
Gage
Primary
Gage
Primary (lower)
Air Gauge Port
Treadle
Valve
Spring Brake
Air Reservoir
Primary - Upper
Tank
Wet Tank
Secondary - Lower
Tank
Figure 1.
Air Supply System.
TM 9-2320-272-23-1
0126
0126-2
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