Warning! Corrosion and irritant hazard. Brake fluid is corrosive and will damage paintwork. Avoid contact with eyes and skin. In the event of accidental contact, wash the affected part with abundant quantities of running water.
Connect a piece of clear plastic tubing to each of the bleed valve nipples (1). Place the other end of each tube in a container on the floor holding used brake fluid.
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Unscrew the bleed valve by 1 or 2 turns.
Remove the cover and membrane from the brake fluid reservoir.
Operate the brake lever (or pedal) until all the fluid has been bled out of the circuit.
Repeat this operation on each brake caliper.
Tighten the bleed valve (torque 6 Nm).
Filling the hydraulic circuit
Fill the reservoir with brake fluid from a new container.
Caution! During the next operation the fluid level must remain topped up at all times. The end of the transparent plastic tubing must remain immersed in the discharged brake fluid at all times.
Operate the brake lever (or pedal), open the bleed valve by + or 1 turn and then close and tighten the bleed valve.
Caution! Do not release the brake lever (or pedal) until the bleed valve has been fully tightened.
Release the brake lever (or pedal) gradually and then wait for several seconds when the lever (or pedal) reaches the end of its travel.
Repeat the bleeding operation until air bubbles no longer come out of the plastic tube.
Bleed the bleed valves one at a time.
Tighten the bleed valves to the specified torque setting. Fit the dust cap to the bleed valve nipple.
Top up the brake fluid in the reservoir. Refit all the parts removed previously.