Removal
Remove the gearbox.
Remove the protective cap (1) from the air bleed valve (2). Unscrew the air bleed valve.
Unscrew the primary valve (3).
Unscrew the bolts (1) and remove the slave cylinder (2). (3 - seal. If it is loose, replace it. To replace it, pry it off).
Tap the end of the slave cylinder on a soft surface to release the release bearing. The release bearing is simply inserted.
Examination
Compress the release bearing while rotating it. If the bearing rotates with difficulty, it must be replaced.
Caution: The bearing is filled with grease at the factory and must not be cleaned or re-lubricated.
Check work surfaces for wear, corrosion and damage.
Installation
Lubricate all bearing surfaces and contact surfaces with high-temperature molybdenum-based grease. Remove old grease if necessary.
[For details, see the website www.MAZbook.ru]
Caution: Do not apply too much grease to avoid grease getting on the working surfaces of the clutch discs when installing the clutch.
Install a new seal.
Place the release bearing onto the slave cylinder. Tighten the slave cylinder bolts until the seal is pressed into the transmission housing.
Replace the primary valve sealing ring if damaged. Tighten the air bleed valve and primary valve to 10 Nm. Do not overtighten, otherwise malfunctions will occur.
Place the protective cap on the air bleed valve.
Install the gearbox.