Withdrawal
Pic. 3.6. bleed valve
Drain the working fluid through the bleed valve (pic. 3.6).
Loosen the master cylinder nut.
Disconnect the pipelines.
Pic. 3.7. Clip of fastening of the pipeline to a transmission
Remove the clamp securing the pipeline to the gearbox (pic. 3.7).
Checking the technical condition
Check the hose and piping for rust, pitting and burrs.
Installation
Connect the pipeline to the working cylinder.
Pic. 3.8. Hose connection
Connect the hose and secure it with a clamp (pic. 3.8).
Install the master cylinder.
Attach pushrod to clutch pedal.
Bleed the hydraulic clutch.
Remove the piston retaining ring.
Take out a pusher in gathering with the piston.
Note. When doing this, take care not to damage the body and piston of the cylinder.
Check after installation
Check the cylinder bore for rust, pitting and burrs.
Check the cylinder sleeve for wear or misalignment.
Check the piston for rust, pitting or burrs.
Check the cleanliness of the pipeline.
Pic. 3.9. Checking the cylinder diameter with a bore gauge
Check the inner diameter of the cylinder with a bore gauge and the outer diameter of the piston with a micrometer (pic. 3.9).
If the clearance between the piston and cylinder exceeds the maximum allowable value, replace the master cylinder or piston.
Maximum allowable clearance between piston and cylinder: 0.15 mm.
Assembly
Apply DOT3 or DOT4 brake fluid to the cylinder bore and piston outer surface.
Insert the piston into the cylinder.
Install the piston retaining ring.
Pic. 3.10. Pusher installation
Install pusher (see master cylinder details) (pic. 3.10).
Connect the hose to the cylinder body.