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 1023 of 1313
INSUFFICIENT BRAKES (VEHICLE STOPPING DISTANCE TOO LONG, NO APPARENT AIR SYSTEM
FAILURE WITH GAUGES AT NORMAL OPERATING PRESSURE, WARNING BUZZER NOT SOUNDING) -
Continued
STEP
18.
IS LIMITING VALVE DELIVERING PROPER AIR PRESSURE?
a.
Stop engine and open all draincocks until brake system air pressure is vented.
b.
Close all draincocks.
c.
Return vent line to original condition.
Air Delivery Line
T0218DAA
Limiting Valve
Transducer
Air Delivery Line
Tee Fitting
Limiting Valve
Delivery Port
Figure 17.
Limiting Valve.
TM 9-2320-272-23-1
0120
0120-34
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