Description

DESCRIPTION

The clutch adopted is single-plate, dry with diaphragm pressure plate.

The clutch is disengaged by a hydraulic device comprising a reservoir (1) shared with the braking system, a pump (2) fastened to the pedal unit, a control cylinder (3) fastened to the gearbox cover and a thrust bearing (4).

The pump, operated by the pedal, transmits the fluid pressure increase to the control cylinder piston through the special pipe.

Through a prod, the piston acts on the lever and transmits the control to the fork which moves the thrust bearing overcoming the action of the diaphragm pressure plate.

In addition to reducing the effort required on the pedal, the adoption of the hydraulic clutch release device makes it possible to obtain:

• increased reliability in relation to the conventional, mechanical solution.

• improved smoothness due to the damping of the hydraulic system during disengagement which avoids jerking, particularly when the transmitted torque is high.

• greater operating precision as this device permits constant adjustment of the height of the clutch pedal.

• increased driving comfort as a result of the reduction of the level of vibrations transmitted from the engine, due to the damping effect of the oil.

In order to meet the current laws concerning environmental pollution problems, ecological material (asbestos free) material has been used for the friction linings. For the six cylinder version a damper has been fitted on the hydraulic control circuit to graduate its action.

1. Brake-clutch system reservoir
2. Clutch pump
3. Clutch control cylinder
4. Thrust bearing
5. Clutch plate
6. Pressure plate
7. Clutch pedal
8. Damper