Checking the clutch disc on the runout.
The clutch disc with attached friction linings is checked for runout as follows: the properly installed clutch disc is turned by hand and at the same time the beating of the disc is measured with a dial gauge. The allowable runout value is approx 0,7 mm on each 100 mm of blade diameter. Deviations from the flatness and parallelism of the side surfaces of the cladding may be 0,5 Mm.