Removing
1. Remove the gearbox.
2. Loosen the clutch pressure plate fixing bolts 1 to 1.5 turns respectively, one by one, until the pressure plate loosens.
Attention! If the fixing bolts are immediately unscrewed completely, the Belleville spring may be damaged.
3. To prevent the flywheel from turning at the same time as the bolts are loosened, lock it with a screwdriver.
4. After that, completely unscrew the bolts.
5. Remove pressure plate and clutch disc.
Attention! Do not drop them when removing them, otherwise, after assembly, difficulties may arise due to jerking and disengaging the clutch.
6. Blow out the inside of the flywheel with compressed air or wipe it off with a rag soaked in gasoline.
Examination
1. Check the clutch pressure plate for burnt cracks and scratches.
2. Inspect the belleville spring for cracks.
3. Check for wear and uniform height of the belleville spring lugs (arrows), if necessary, carefully align them with pliers.
Attention! Wear can be a maximum of 0.3 mm.
4. Check the flywheel for burnout cracks and scratches.
5. Treat the clutch pressure plate with coarse sandpaper.
6. Replace oily, greased or mechanically damaged clutch discs.
7. Measure the thickness of the clutch disc linings. New: 3.6-4.0 mm on each side of the pad. If the wear limit of 2.6-3.0 mm has already been reached on each side of the friction lining, replace the clutch disc. Do the same if there are cracks in the friction linings.
8. Check for signs of wear and lapping stop bolts, damping windows, torsion springs and bushing (arrows).
9. Remove and inspect the clutch release bearing from the tubular support on the transmission front cover.
10. At the auto repair shop, you can check the clutch disc for runout. Lateral runout at the clutch disc can be a maximum of 0.5 mm.
Attention! This check is only required if the old clutch disc needs to be reinstalled and the clutch has previously disengaged incorrectly.
Installation
1. Slide the clutch disc and clutch pressure plate onto the flywheel and center them with the connecting rod or HAZET 2174 centering tool.
Attention! In engines with a double-case flywheel, the clutch disc ring gear is penetrated and therefore does not need to be lubricated.
2. Tighten the mounting bolts to the clutch pressure plate one after the other 1–1.5 turns in sequence until the pressure plate is fully secured. Tightening torque: 25 Nm Then remove the center mandrel.
Attention! Pay attention to the fact that when tightening the bolts, the pressure plate is drawn evenly and without burrs into the flywheel.
3. Mount the gearbox.