1. Fill the reservoir with fresh brake fluid (the use of waste fluid is prohibited).
2. Turn off the pumping union on the working cylinder, attach a transparent hose to it and ask the assistant to press a clutch pedal to the full.
3. With the pedal depressed, tighten the fitting and ask an assistant to slowly release the pedal.
4. Repeat the procedure until no more air bubbles come out of the hose.
5. Constantly monitor the level, the tank must be completely filled with liquid.
6. When finished, tighten the fitting and restore the fluid level in the tank.