2. Check if the release bearing has damaged the disc spring. If the recesses exceed the maximum depth specified in the technical data, the booster must be replaced.
3. Using a ruler and a feeler gauge, check if the pressure ring is worn more than 0.3 mm. Also check if the rivet connections are loose and if the disc spring is not broken.
4. Check for wear on the clutch disc lining and replace the disc with a new one if the rivet penetration is less than 0.3 mm or if the lining is cracked and soaked with oil.
5. Check whether the springs of the clutch damper 2 are broken, whether the lateral runout exceeds the value specified in the technical data (fig 5.2)
Pic. 5.2. Clutch elements
1 - a bolt securing the clutch booster; 2 - springs of the vibration damper when turning; 3 - bolt securing the flywheel; 4 crankshaft trunnions; 5 - clutch booster; 6 - booster ring, 7 - disc spring; 8 - washer; 9 - switching off disk; 10 - spring ring; 11 - clutch disc; 12 - flywheel; 13 - clutch pusher.
6. If the elements of the clutch assembly are contaminated with oil, it is necessary to find the place of leakage and eliminate the malfunction. For a description of replacing the crankshaft seal, see Section 16 of the Transmission Clutch Shaft Seal in Section 6.
7. After checking the clutch disc and booster, it is always worth checking the release bearing as described in point 7.
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