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 250 of 1313
PRIMARY SERVICE AIRBRAKE SYSTEM OPERATION - Continued
P. REAR FRONT BRAKE CHAMBERS
- Converts air pressure to mechanical force which applies rear
service brakes.
D
C
G
K
M
P
B
A
E
F
J
O
H
I
N
TO SPRING BRAKE
SYSTEM
TO SPRING BRAKE SYSTEM
FROM
SUPPLY
SYSTEM
L
G0042DAA
PRIMARY CONSTANT
PRESSURE SYSTEM
SUPPLY SYSTEM
PRIMARY SIGNAL
SYSTEM
Figure 30.
Primary Service Airbrake System Components.
TM 9-2320-272-23-1
0003
0003-45
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