1. Remove the waste liquid with a pear, rinse the tank.
2. Put a bleed hose on the cylinder fitting.
3. Fill the reservoir with fresh fluid and fill the reservoir halfway with fresh DOT 3 or DOT 4 brake fluid
4. Turn away the union and ask the assistant to press a clutch pedal.
5. Wrap the fitting and ask the assistant to slowly release the clutch pedal.
6. Repeat the procedure until no more air bubbles come out of the hose at the fitting. Maintain fluid level in reservoir.