Description of the Clutch

General

A dry single plate clutch is incorporated in the flywheel between engine and transmission. The spring cushioned clutch disc has friction linings on both sides. It rides in the splined input shaft and has axial freedom of movement. The diaphragm spring, together with the clutch assembly, is centrally mounted in the flywheel. In engaged condition, the clutch disc is held against the flywheel by the pressure plate upon which the diaphragm spring acts, thus providing a mechanical lock between the engine and transmission.

The clutch control fork, mounted in the transmission housing, carries the throwout bearing. The throwout bearing is permanently lubricated and requires no maintenance.

Clutch actuation at disengagement is by way of the clutch pedal, clutch cable, control fork, and throwout bearing. The throwout bearing exerts pressure upon the segments of the diaphragm spring, displacing it axially. The resulting deflection of the diaphragm spring relieves pressure from the pressure plate and, thus, from the clutch disc, resulting in disengagement of engine from the transmission.

Clutch maintenance is limited to adjustment of the clutch pedal clearance of 20-25 mm (3/4 to 1 in.) in the course of normal clutch lining wear, and also to the adjustment of the clutch pedal travel limiter.

Last modified: Mon, 17 Jan 2005

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