In addition, bleeding is performed when filling the hydraulic drive with fluid after its replacement or after repair of system components associated with its depressurization.
You will need: brake fluid, a bleeding hose, a 10 mm spanner, and a container for draining the fluid.
1. Check the level of working fluid in the reservoir of the master brake cylinder (the reservoir is common for both main cylinders) and, if necessary, bring it up to standard.
2. Remove the protective cap from the clutch slave cylinder bleed valve.
3. Attach a hose to the valve and lower its end into a container with a small amount of brake fluid. Ask an assistant to press the clutch pedal four or five times at intervals of 2-3 seconds, and then hold it down. Unscrew the valve by 3/4 of a turn. Fluid with air bubbles will come out of the hose into the container.
4. Close the valve and ask the assistant to release the clutch pedal.
5. Repeat steps 3 and 4 several times until liquid starts coming out of the hose without air bubbles.
Warning: When bleeding the hydraulic drive, periodically check the fluid level in the master cylinder reservoir. Do not allow the fluid level in the reservoir to drop below 25 mm from the bottom of the reservoir. Top up the fluid in a timely manner, otherwise, when the bottom of the reservoir dries, air will get into the system and bleeding will have to be repeated again.
6. Close the valve, put on the protective cap and, if necessary, add fluid to the master cylinder reservoir.