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 1140 of 1313
SPRING BRAKES DO NOT SET (GAUGES AT NORMAL OPERATING PRESSURES, AIR EXHAUSTING NOT
HEARD WHEN PARKING BRAKE APPLIED) - Continued
STEP
2.
IS THE PARKING BRAKE FULLY APPLIED?
Verify that the parking brake is fully applied.
T0309DAA
PARKING
BRAKE
LEVER
SPRING
BRAKE
ASSEMBLY
Figure 2.
Spring Brake Assembly.
CONDITION/INDICATION
IS THE PARKING BRAKE FULLY APPLIED?
DECISION
NO - Fully apply parking brakes. Go to Step (5) to verify problem is solved.
YES - Go to Step (3).
TM 9-2320-272-23-1
0136
0136-3
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