Attention! Use recommended DOT4 brake fluid during bleeding operation. Do not use an automatic bleeder (in this case, the formation of air bubbles in the liquid filling the circuit is possible).
Remove air in the following order:
- remove the protective cover;
- remove the air filter;
Pic. 6.1. Hydraulic clutch drive: 1 - supply tank; 2 - main cylinder; 3 - clutch pedal; 4 - working cylinder; 5 - valve for air removal
- completely fill the supply tank 1 (pic. 6.1.) brake fluid;
Pic. 6.2. Clutch supply reservoir
- shake the tank (pic. 6.2.), to remove air pockets;
- connect a transparent tube to the valve for pumping on the working cylinder, lower the other end of the tube into a container with brake fluid, while the container should be located below the working cylinder;
Pic. 6.3. Removing air from the hydraulic clutch: 1 - working cylinder; 2 - bleed valve; 3 - tube; 4 - capacity
- bend the transparent tube so that the siphon is directed upwards, while the tube should touch the bottom of the container (pic. 6.3);
- quickly depress the clutch pedal to its full extent, depressing and releasing about 12 times;
- at the end of each press, keep the clutch pedal fully depressed;
- your assistant in this position of the pedal should open and close the valve to remove air after the pedal rests on the floor;
- release the clutch pedal to return it to the up position;
- check the brake fluid level in the reservoir and top up;
- do similar operations until no more air bubbles come out into the container;
- start the engine and warm it up;
- Engage first gear and start releasing the clutch pedal;
Pic. 6.4. Clutch pedal position
- Start «grasping» clutch should take place when dimension X (pic. 6.4) will be equal to or greater than 35 mm.