Suzuki GRAND VITARA XL-7, Руководство по обслуживанию

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1. Crankshaft
2. Flywheel
3. Clutch disc
4. Pressure plate
5. Clutch cover
6. Diaphragm spring
7. Release bearing
8. Input shaft bearing
9. Input shaft
10. Operating cylinder
11. Clutch housing
12. Release fork
7C1-2 CLUTCH
GENERAL DESCRIPTION
The clutch is a diaphragm-spring type clutch with a dry single disc. The diaphragm spring is of a tapering-finger
type, which a solid ring is set in the outer diameter part, with a series of tapered fingers pointing inward.
The clutch disc, which is positioned on the transmission input shaft with an involute spline fit, is a type called silent
type. The silent type clutch disc is provided with the performance of absorbing the engine output torque fluctuation,
which is peculiar to the diesel engine. This performance of the silent type clutch disc is attained from the character-
istics which can vary torsional torque as two step depending on its torsional angle and the specific hysteresis fea-
ture called AC/DC hysteresis.
The clutch cover is secured to the flywheel, and carries the diaphragm spring in such a way that the peripheral edge
part of the spring pushes on the pressure plate against the flywheel (with the disc in between), when the clutch
release bearing is held back. This is the engaged condition of the clutch.
Depressing the clutch pedal causes the release bearing to advance and pushes on the tips of the tapered 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 transmission input shaft.