Removing the gearbox (see Removing the gearbox).
With a special "10" key, we unscrew the fitting of the fluid supply pipe to the cylinder..
... and remove the tube from the cylinder hole.
With a "5" hexagon, we unscrew the three screws securing the working cylinder housing to the clutch housing.
Remove the assembly of the slave cylinder and clutch release bearing.
Pry off the rubber o-ring with a screwdriver..
... we take it out of the groove of the clutch housing.
If the working cylinder of the hydraulic drive and the clutch release bearing, according to the results of the diagnostics, do not have indications for replacement, and only the oil seal of the gearbox input shaft is damaged, then..
... pry off the stuffing box with a screwdriver and remove it from the socket of the cylinder body.
We press the new oil seal into the socket of the cylinder body with a tool head of a suitable size.
After replacing the rubber sealing ring, install the assembly of the working cylinder and the clutch release bearing in reverse order. Tighten the screws securing the cylinder body to the clutch housing to the prescribed torque (see Applications).
If it is necessary to replace the tube for supplying fluid to the clutch slave cylinder, disconnect it from the cylinder (see above).
We pry off the centering plastic sleeve of the tube tip with a screwdriver, and squeezing its latches..
... remove the sleeve from the hole in the clutch housing.
Remove the fluid supply pipe to the working cylinder.
The connection of the tube tip to the clutch hydraulic hose adapter is sealed with a rubber ring.
Install the fluid supply pipe to the clutch slave cylinder in reverse order.
After installing the gearbox, we pump the clutch hydraulic drive (see Clutch bleeding).