1 - driven disk
2 - pressure plate
3 - clutch release bearing
4 - clutch release lever
5 - bolt
6 - ball pin
7 - spring clip
On the models in question, a single-disk dry clutch with a diaphragm spring is installed. The shift clutch disconnects the power connection between the engine and the gearbox and provides, thanks to the frictional connection, a smooth transmission of torque to the chassis when starting off.
The clutch consists of a basket with a pressure plate, a driven plate, a hydraulic clutch release bearing.
The clutch basket is bolted to the flywheel. The flywheel, in turn, is connected to the crankshaft of the engine. Between the pressure plate and the flywheel is a driven disk, which is pressed against the flywheel by a pressure plate diaphragm spring. The driven disk is connected to the gearbox input shaft through a spline connection.
When you press the clutch pedal through the master cylinder on the clutch pedal, pressurized fluid is transferred to the slave cylinder. The piston of the working cylinder, pressing the clutch release bearing, acts on the pressure plate. In this case, the driven disk is retracted from the flywheel. The power connection between the engine and gearbox is interrupted.
The clutch hydraulic system runs on brake fluid coming from a reservoir shared with the brake system.
Each time the clutch is engaged and disengaged as a result of force action, the friction linings of the driven disk are worn. The driven disk is a wear part. However, its average service life is more than
150.000 km. Disc wear depends mainly on load and driving style. In particular, starting off when the clutch slips for a long time, or driving in the mountains with a trailer causes the clutch to burn out. The clutch does not require maintenance, as it is self-adjusting.