Brake Pressure Control Valve

NOTE: The brake tube coming out of the outlet port of the brake master cylinder leads to the inlet port of the brake pressure control valve. The pressure gauge is inserted at the brake master cylinder for easier access to measure inlet fluid pressure.

1. Use Proportioning Valve Gauge Set T92C-20215-AH to connect one pressure gauge to the outlet port of the brake pressure control valve and the other pressure gauge to the inlet port of the brake pressure control valve as shown. Tighten the flare nuts to 13-22 Nm (10-16 lb ft).

Testing:

2. Bleed the air from the pressure gauges.
3. Press the brake pedal until the inlet fluid pressure (on the brake master cylinder side of the brake pressure control valve) is 1961 kPa (284 psi).
a. The outlet fluid pressure (on the rear brake side of the brake pressure control valve) is within specification if it is 1765-2157 kPa (246-312 psi).
b. If the outlet fluid pressure is not within specification, replace the brake pressure control valve.
4. Press the brake pedal until the inlet fluid pressure is 5880 kPa (850 psi).
a. The outlet fluid pressure is within specification if it is 2550-2942 kPa (370-426 psi).
b. If the outlet fluid pressure is not within specification, replace the brake pressure control valve.
5. Bleed the air from the brake system.