7
Brake Bleeding Procedure
1. Refer to vehicle service manual to determine appropriate pressure and adjust accordingly by adding or
removing pressure.
2. If a new master cylinder is being installed, bench bleed it before installation.
3. Fill the vehicle master cylinder to its maximum level or approximately ½” below master cylinder reservoir
rim. DO NOT fill to top. The air pocket left in the reservoir will act as a trap for any air bubbles present or
created during the bleeding process.
4. Determine appropriate adapter for the vehicle being serviced based on the Adapter Guide and install on
the vehicle master cylinder according to Brake Bleeder Adapter Instructions. If present, remove the air
purge valve assembly connect the bleeder hose to installed adapter.
5. Check all bleeder connections and vehicle’s brake lines for leaks. If a leak is detected; close the bleeder
valve, wrap a rag around the quick coupler to prevent drips and disconnect the quick coupler from the
adapter. Correct the problem before proceeding.
6. If the vehicle master cylinder and/or booster unit have bleed screws, bleed these prior to bleeding wheels.
Note: Always refer to vehicle service manual for proper bleeding procedure.
7. Apply the brake pedal. If the pedal feels soft, repeat bleeding operation.
8. When bleeding is complete, close the bleeder valve, wrap a rag around the quick coupler to prevent drips
and disconnect from adapter at master cylinder.
9. Remove the adapter from the master cylinder.
10. Check brake fluid level in the master cylinder and add or remove as needed for correct level.
11. Replace the master cylinder cover.
MAINTENANCE _____________________________________________________________
ALWAYS: Keep brake bleeder, adapters, and other accessories clean to prevent contaminants from
entering the brake fluid.
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