The clutch is the dry, single
plate type with a thrust bearing always in contact with the flexible
coupling spring.The driven disc is driven by the pressure
exerted by a diaphram spring. The clutch release is activated through
the hydrauilc system operated by the pedal.
The system consists of:
a clutch pump (master cylinder) (2), which has the task
of compressing the fluid and is fixed to the pedals;
a connecting pipe (3) between the pump and the clutch
operating cylinder;
a clutch operating cylinder (4) fixed to the gearbox;
linkage (5) operating the thrust bearing;
a thrust bearing (6);
a clutch drip tray with diaphragm springs
(7);a clutch plate (8);a fluid reservoir (1) shared with the braking
system.
1 - Brake/clutch fluid reservoir2 - Clutch pump3 - Connecting pipe between pump and cylinder4 - Clutch operating cylinder5 - Linkage6 - Thrust bearing7 - Diaphragm spring8 - Clutch plateThe pump (2), operated by the
clutch pedal, pressurizes the hydraulic circuit and activates the
clutch operating cylinder (4).The latter acts on the operaating linkage
(5), which 'pulls' the thrust bearing (3), overcoming the action
of the pressure plate springs (7).This action uncouples the clutch plate (8)
from the flywheel.When the pedal is released, the action of
the diaphragm springs (7) returns the mechanism to the original
position.