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 49 of 680
2-27
TB 9-2320-335-13&P
Flush and bleed the brake system
(para. 7-2.1).
Master cylinder test procedure:
1. With the engine off, pump the brake pedal
six or seven times, or until the pedal
becomes noticeably stiffer and harder to
depress.
2. Press hard on the brake pedal. If the pedal
keeps going down to the floor, either the
master cylinder is bad or there is a leak in
the hydraulic system.
Replace master cylinder (para. 7-5.1).
Check the individual lines going to each brake.
Check the supply and return lines to the
hydro-booster unit. Replace brake line
(para. 7-7.1).
NOTE
Brake hydraulic system must be bled of air
whenever hydraulic lines are broken.
Bleed service brake (para. 7-2.1).
MASTER
CYLINDER
RESERVOIR
DUST BOOT
PISTON
PISTON SEAL
HARD
BRAKE LINE
BRAKE PADS
CALIPER
MASTER
CYLINDER
RESERVOIR
(S/N 299999 AND BELOW)
(S/N 300000 AND ABOVE)
(S/N 299999 AND BELOW)
(S/N 300000 AND ABOVE)
ROTOR
REFERENCE INFORMATION
BRAKE SYSTEM
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