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

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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