TB-9-2320-335-13-P
TRUCK, UTILITY: EXPANDED CAPACITY, IAP/ARMOR READY
TECHNICAL BULLETIN; OPERATOR AND FIELD MAINTENANCE AND REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL) INSTRUCTIONS
MAY 2008
TB-9-2320-335-13-P - Page 18 of 680
TB 9-2320-335-13&P
1-8
1-26. SERVICE BRAKE SYSTEM OPERATION
C
MASTER CYLINDER/RESERVOIR
– Stores brake fluid and converts mechanical pedal pressure
to hydraulic pressure.
A
HYDRO-BOOSTER
– Converts hydraulic power from the steering pump to mechanical power to
the master cylinder, providing power assist during braking.
E
ACCUMULATOR
– Stores hydraulic pressure for additional power-assisted braking in case of loss
of pressure in steering system.
D
PROPORTIONING VALVE
– Provides balanced front-to-rear braking and activates brake warning
lamp in case of brake system malfunction.
G
BRAKE LINKAGE
– Directs brake pedal pressure to hydro-booster.
F
BRAKE PEDAL
– Provides operator control for stopping vehicle.
The service brake system covered in this manual is an inboard-mounted, four-wheel, disc brake,
hydraulically-assisted system. Major components of the braking system are:
B
BRAKE PRESSURE LIMITER
– Limits front brake line pressure to prevent brake lockup.
S/N 299999 AND BELOW
S/N 300000
AND ABOVE
C
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