Pressure Tank Bleeding
NOTE:
Air tends to cling to caliper walls. When bleeding disc brake equipped vehicles, lightly tap caliper to help remove air.
- Clean master cylinder cap and surrounding area. Remove cap. With pressure tank at least 1/2 full, connect to master cylinder with adapters. Attach bleeder hose to first bleeder valve to be serviced. See BLEEDING SEQUENCE table.
- Place other end of hose in clean glass jar partially filled with clean brake fluid so end of hose is submerged in fluid. Open release valve on pressure bleeder. Follow equipment manufacturers pressure instructions unless noted below.
- Unscrew bleeder valve 3/4-1 turn noting fluid flow. When fluid flowing from cylinder to jar is free of bubbles, close bleeder valve securely. Bleed remaining cylinders in correct sequence and in the same manner. Remove tool from control valve.
PRESSURE BLEEDER SETTINGS
| Application | Psi (kg/cm2 ) |
|---|---|
| General Motors | 20-25 (1.5-1.8) |