Brake Proportioning/Combination Valve: Testing and Inspection

Load sensing proportioning valve (Without ABS)
1. Connect the two oil pressure gauges 9810 kPa (100 kg/cm2, 1422 psi) to the inlet valve and outlet valve of rear wheel.
2. Bleed the air from the brake system.
3. Depress the brake pedal until the master cylinder pressure equal to A; then record rear brake pressure A.
4. Depress the brake pedal again, and apply additional pressure until the pressure equal to B; then record pressure B.

Specifications (Dynamic condition)





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Load sensing proportioning valve flare nut
Tightening torque: 14.5 - 21.7 ft. lbs. (20 - 30 Nm, 2.0 - 3.0 kg-m)