PRESSURE BLEEDING DISC BRAKES

WARNING
Special adapters are required when pressure bleeding cylinders with plastic reservoirs.

Pressure bleeding equipment should be diaphragm type; placing a diaphragm between the pressurized air supply and the brake fluid. This prevents moisture and other contaminants from entering the hydraulic system.

NOTE: Some front disc/rear drum equipped vehicles use a metering valve which closes off pressure to the front brakes under certain conditions. These systems contain manual release actuators, which must be engaged to pressure bleed the front brakes.

1. Connect the tank hydraulic hose and adapter to the master cylinder.
2. Close hydraulic valve on the bleeder equipment.
3. Apply air pressure to the bleeder equipment.

   CAUTION
   Follow equipment manufacturer's recommendations for correct air pressure.

4. Open the valve to bleed air out of the pressure hose to the master cylinder.

   NOTE: Never bleed this system using the secondary piston stopscrew on the bottom of many master cylinders.

5. Open the hydraulic valve and bleed each wheel cylinder and caliper. Bleed rear brake system first when bleeding both front and rear systems.