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Brake Proportioning/Combination Valve|Description and Operation|Page 2401 > < Brake Hose/Line|Testing and Inspection
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Brake Proportioning/Combination Valve: Description and Operation

Dual Proportioning Valve

PURPOSE AND OPERATION

Two proportioning valves are included in the dual diagonal braking system to provide two functions:
To distribute brake fluid pressure diagonally to the right front and left rear, and to the left front and right rear. This prevents the loss of pressure to
both wheels on the same side of the car in the event of a brake failure.
The proportioning valves also reduce fluid pressure to the rear brake cylinders under heavy braking conditions.

NOTE: The proportioning valves are not repairable. If you suspect a failure, replace the valves as an assembly.

Brake Proportioning/Combination Valve|Description and Operation|Page 2401 > < Brake Hose/Line|Testing and Inspection