Bleeding Pump and Booster

BLEEDING PUMP AND BOOSTER

1. Be sure that hydraulic accumulator is depressurized. If accumulator is suspected to contain pressurized fluid, depressurize by pumping the brake pedal a minimum of 25 times.
2. Connect all pump/motor assembly and hydraulic unit electrical connections, if previously disconnected. Be sure that all pipe and hose connections are tight. Fill the hydraulic unit reservoir to the FULL mark.

Bleeding Pump Motor System:

3. Connect a transparent hose to the pump bleed screw as shown in the illustration. Place the free end of the hose in a clear glass container to catch the discharged brake fluid.
4. Loosen pump bleed screw 1/2 to 3/4 turn.
5. Turn ignition on. The pump should run, discharging brake fluid into the glass container. Allow the pump to run until clear, bubble-free brake fluid flows from the bleeder hose and then turn ignition off.
6. Tighten pump bleed screw.

Bleeding Hydraulic Unit:

7. Remove hose from pump bleed screw and connect to hydraulic unit bleed screw as shown in the illustration. Place the free end of the hose in the glass container.
8. Loosen hydraulic unit bleed screw.
9. Turn ignition on, allowing pump to run until clear, bubble-free brake fluid flows from the bleeder hose. Turn ignition off.
10. Tighten hydraulic unit bleed screw.

Important
^ Do not over-tighten bleed screw.
^ Tighten to 10 N.m (7.5 ft. lbs.).

11. Disconnect bleeder hose.
12. Turn ignition on and allow accumulator to charge. Pump should stop after approximately 30 seconds.