LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 1983 >> Forward Control 5.7 M, Automatic, 400/M40 >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Bleeding >> Manual Bleeding

Manual Bleeding

NOTE: When bleeding disc brakes, air may tend to cling to caliper walls. Lightly tap caliper, while bleeding, to aid in removal of air.
  1. Fill master cylinder. Install bleeder hose to first bleeder valve to be serviced. See BLEEDING SEQUENCE table. Submerge other end of hose in clean glass jar partially filled with clean brake fluid.
  2. Open bleeder valve 3/4-1 turn. Depress brake pedal slowly through full travel. Close bleeder valve and release pedal. Repeat procedure until flow of fluid shows no signs of air bubbles.
Fig 1: Wheel Cylinder Bleeding Procedure Bleeder valve must be closed when brake pedal is released.
G30346
scientia non olet · About LEMON Manuals