Brake Proportioning/Combination Valve: Description and Operation
DESCRIPTIONThe brake pressure control valve regulates hydraulic pressure in the rear brake system. They are remote-mounted brake pressure control valves.
OPERATION
The brake pressure control valve operates as follows:
^ When brake pedal is applied, the full rear brake fluid pressure passes through the proportioning valve to the rear brake system until the valve's split point is reached.
^ Above its split point, the proportioning valve begins to reduce the hydraulic pressure to the rear brakes.
^ The reduced pressure creates a balanced braking condition between the front and rear wheels to minimize rear wheel skidding during hard braking.