ARIA

CLUTCH

A. CLUCTH MASTER CYLINDER

The clutch master cylinder is mounted on the

firewall with its fork connected the Clutch pedal.

The master cylinder is a control device that

converts mechanical energy which comes by

pressing the clutch pedal into hydraulic pressure,

in order to actuate the clutch slave cylinder which

is located at the other end of the hydraulic system.

As the piston moves along the bore the

mechanical effort is converted into hydraulic

pressure. The pressure remains same in the

hydraulic line while force is magnified at slave

cylinder end because of increased piston area of

slave cylinder.

NOTE

The clutch master cylinder parts are not

serviceable and needs to be replaced completely if

found defective.

B. CONCENTRIC SLAVE CYLINDER

(CSC)

The clutch control mechanism is fully hydraulic.

There is no mechanical transfer (fork) inside the

clutch cover from an external slave cylinder. The

concentric slave cylinder (CSC) means that the

slave cylinder is integrated with the throwout

bearing. The concentric slave cylinder (CSC) is

extremely efficient and reliable and the throwout

bearing is accurately centered and secured to the

transmission cover using two screws. The bearings

and friction surfaces do not need to be lubricated.

The bearing on the concentric slave cylinder (CSC)

is self-centering against the clutch diaphragm

spring. The hydraulic line from the master cylinder

is connected to the concentric slave cylinder (CSC)

via an adapter and peak torque limiter.

Advantages of CSC:

•

Lighter pedal effort resulting in comfortable

drive.

NOTE

•

When a self adjusting clutch assembly is

replaced, the concentric slave cylinder (CSC)

also requires replacement.

•

Remove the protective cap just before

installation.

•

The concentric slave cylinder parts are not

serviceable and needs to be replaced

completely if found defective.

C. PEAK TORQUE LIMITER

The peak torque limiter is the flow reducer located

between the clutch master cylinder and slave

cylinder in the hydraulic line.

The main function of the peak torque limiter is to

restrict flow of fluid below certain limit to avoid

sudden engagement of clutch.

The peak torque limiter does not come into picture

during normal driving.