1-26. SERVICE BRAKE SYSTEM OPERATION
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:
BRAKE LINKAGE Directs brake pedal pressure to hydro-booster.
HYDRO-BOOSTER Converts hydraulic power from the steering pump to mechanical power to
the master cylinder, providing power assist during braking.
MASTER CYLINDER/RESERVOIR Stores brake fluid and converts mechanical pedal pressure
to hydraulic pressure.
PROPORTIONING VALVE Provides balanced front-to-rear braking and activates brake warning
lamp in case of brake system malfunction.
ACCUMULATOR Stores hydraulic pressure for additional power-assisted braking in case of loss
of pressure in steering system.
BRAKE PEDAL Provides operator control for stopping vehicle.
BRAKE PRESSURE LIMITER Limits front brake line pressure to prevent brake lockup.
S/N 299999 AND BELOW