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Hydraulic Clutch System Description and Operation

Hydraulic Clutch System Description and Operation



The clutch is hydraulically actuated and is completely self-adjusting. The unit comprises:


Master cylinder (1)

Connecting pipes (2)

Slave cylinder (3)

The master cylinder is mounted in the bulkhead and is connected to the clutch pedal via a piston rod.

The slave cylinder is an integrated unit mounted in the clutch housing and comprises:


Cylinder housing (4)

Split piston (5)

Fixed release bearing (6)


The slave cylinder cannot be disassembled. The hydraulic pressure from the master cylinder presses on the seal, which then pushes the piston and release bearing against the pressure plate. A spring is mounted between the cylinder housing and the release bearing, which means the release bearing, is always pressed against the pressure plate and in this manner reduces the play in the clutch pedal.

A hydraulic line links the master cylinder and the slave cylinder damper pipe (to reduce pedal vibration) and has a quick-release coupling at each end. The lower quick-release coupling, to the slave cylinder, has a bleed nipple.