TB-9-2320-335-13&P HMMWV Operator and Field Maintenance, Parts, Tools M1151A1 M1152A1 M1165A1 Download
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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