Using a caliper, measure the depth of the rivet heads from the lining surface. Minimum rivet depth 0.3 mm.
If the depth is less than acceptable, repair or replace the clutch disc.
2. Using an indicator, check the disc runout. Maximum runout 0.8 mm. If the maximum beat exceeds an admissible value replace a conducted disk.
3. Using a dial gauge, check the flywheel runout. Maximum runout 0.1 mm. If the maximum runout exceeds the allowable value, replace the flywheel.
4. Using a vernier caliper, measure the diaphragm spring and determine its wear in depth and width. Limit wear:
- depth 0.6 mm
- in width 6.0 mm
If wear exceeds the allowable value, replace the clutch cover.
5. While rotating the bearing by hand, apply force to it in the direction of rotation.
Note: The release bearing is lubricated for life and does not require cleaning or lubrication.
If the bearing sticks or turns with difficulty, replace the bearing.