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Home >> Mazda >> 1993 >> B2200 DX, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Testing >> Proportioning Valve

Proportioning Valve

  1. Connect 2 pressure gauges to proportioning valve. One to input port and other to output port. Bleed brake system. See BLEEDING BRAKE SYSTEM. Depress brake pedal until pressure gauge reads as specified and check output pressure. See PROPORTIONING VALVE PRESSURE SPECIFICATIONS table.
  2. Depress brake pedal again, applying additional pressure. Recheck output pressure. See PROPORTIONING VALVE PRESSURE SPECIFICATIONS table. If output pressure is not as specified, replace valve.
PROPORTIONING VALVE PRESSURE SPECIFICATIONS

Application Inlet Pressure psi (kg/cm2 ) Outlet Pressure psi (kg/cm2 )
B2200 555 (39) 512-598 (36-42)
1138 (80) 853-939 (60-66)