Repair and Diagnosis: Transmission: Clutches: Description

The clutch is a hydraulically controlled, dry, single-plate type. A throwout bearing acts upon the diaphragm spring, which allows the driven disc to engage and disengage. Clutch disengagement is achieved by means of a master cylinder which, activated by the clutch pedal, transmits the circuit pressure increase to the clutch operating cylinder piston.

The latter, by means of a cap, acts on the clutch disengage-ment fork, which shifts the throwout bearing and overcomes the action of the diaphragm spring. The special feature of the hydraulic control is to keep the throwout bearing in contact with the diaphragm spring, independent of the wear and tear of the driven disc, gradually achieving, automatically, recovery of play. This means that no clutch adjustment is necessary.