Clutch System: Clutch: Operation

The clutch hydraulic system is responsible for engaging and disengaging the clutch. Depressing the clutch pedal develops fluid pressure in the clutch master cylinder. This pressure is transmitted to the slave cylinder through a connecting line. In turn, the slave cylinder operates the clutch release lever (Figure ) (Figure ).

Slave cylinder spring force causes the release lever to hold the release bearing in contact with the diaphragm spring, also known as bearing preload. During a clutch pedal actuation, the hydraulic fluid pressure applies additional force to the release lever. As additional force is applied, the bearing presses the diaphragm spring fingers inward on the fulcrums. This action moves the pressure plate rearward, relieving clamp force on the disc.