Master cylinder
Remove plug 3 (pic. 3-8), remove the protective rubber cap 7 and the retaining ring 8. This will allow you to remove the piston 9, the o-ring 10, the floating piston 11 with the o-ring and the return spring 12 of the piston from the cylinder body.
Pic. 3-8. Master Cylinder Details:
1 - body; 2 - sealing gasket; 3 - cork; 4 - gasket; 5 - fitting; 6 - lock washer; 7 - cap; 8 - retaining ring; 9 - pusher piston; 10 - sealing ring; 11 - piston of the main cylinder; 12 - spring
The cylinder mirror and the outer surface of the piston must not be damaged or scratched. The inner diameter of the cylinder should be within 19.035-19.075 mm.
Check the condition of the piston return spring and replace it if it has lost elasticity.
Replace o-rings. Check the protective cap on the rear end of the cylinder and if the cap is damaged, replace it with a new one. Carefully clean and flush parts with brake fluid before reassembly. Avoid contact with mineral oil, gasoline, kerosene or diesel fuel, as these substances swell rubber seals.
After checking all parts, assemble the master cylinder in the reverse order of disassembly; at the same time, lubricate all parts of the cylinder with brake fluid or NG-213 preservation fluid.
Working cylinder
Unscrew the plug, remove the protective rubber cap 3 (pic. 3-9) together with the pusher 4, remove the piston and disassemble it, after removing the retaining ring 11.
Pic. 3-9. Clutch Release Cylinder Parts (working cylinder):
1 - body; 2 - fitting; 3 - cap; 4 - pusher; 5 - sealing ring; 6 - piston; 7 - sealing ring; 8 - plate; 9 - spring; 10 - washer; 11 - retaining ring.
After disassembly, carefully wash and inspect all parts as indicated for the master cylinder. It is not allowed to install a deformed pusher.
After checking, proceed with the assembly (order - reverse disassembly), by lubricating parts with brake fluid.