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Home >> Oldsmobile >> 1986 >> Custom Cruiser >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum (RWD) >> POWERMASTER Testing >> Preliminary Procedure

Preliminary Procedure

  1. Complete fluid filling and bleeding procedures. Assure that pump cycle time and reservoir fluid levels are maintained within prescribed limits. Brake fluid temperature at 60-80°F (16-27°C). Warm fluid to 60°F (16°C) minimum by cycling pump.
  2. Fully discharge accumulator by making 10 medium brake applications with ignition off. Inspect for fluid leakage at brake pedal push rod, reservoir cover, hose and pipe connections, reservoir attaching points, pressure switch and accumulator.
  3. Remove pressure switch from Powermaster and install Test Gauge Adapter (J-35126). Reinstall pressure switch in test adapter. Attach pressure switch electrical connector. Close bleed valve.
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