Clutch Disc: Testing and Inspection
1. Check the clutch disc lining surface for hardening or the presence of oil.NOTE: Use emery cloth to remove minor imperfections in the clutch disc lining surface.

2. Check the clutch disc lining for wear. Measure the depth to the rivet heads with a slide caliper. The minimum allowable depth is 0.3mm (0.012 inch).
3. Check for loose clutch disc lining rivets.

4. Check the runout of the clutch disc using Rotunda Radial Runout Gauge 007-0056A or equivalent. The maximum allowable runout is 0.700mm (0.0276 inch).
5. Check for wear or rust on the splines and remove with an emery cloth.