11-l. GENERAL DESCRIPTION
The clutch is a diaphragm-spring clutch of a dry single disc type. The diaphragm spring is of a
tapering-
finger type, which is a solid ring in the outer diameter part, with a series of tapering fingers pointing
inward. The disc, carrying four torsional coil springs, is
slidably
mounted on the transmission input shaft
with a serration fit.
The clutch cover is secured to the flywheel, and carries the diaphragm spring in such a way that the
peripheral edge of the spring pushes on the pressure plate against the flywheel (with the disc in between),
when the clutch release bearing is held back: Tnis is the engaged condition of the clutch.
Depressing the clutch pedal causes the release bearing to advance and push on the tips of the tapering
fingers of the diaphragm spring. When this happens, the diaphragm spring pulls the pressure plate away
from the flywheel, thereby interrupting the flow of drive from flywheel through clutch disc to trans-
mission input shaft.
Flywheel
Crankshaft
Clutch disc.
Transmission
Fig.
11-l
11-2
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