Clutch System

Clutch Allow the engine to be disengaged to the transmission for shifting gears and coming to stop.

Allow smooth engagement of engine to transmission.

LOCATION OF A CLUTCHDepending on the type of drive, the clutch changes its location: Rear wheel drive Front engine Rear engine Mid engine Front wheel drive

FUNCTIONS OF THE CLUTCH1. It can be disengaged (clutch pedal down). This allows

engine cranking and permits the engine to run freely without delivering the power to the transmission.

2. While disengaged (clutch pedal down), it permits the driver to shift the transmission into various gears. This allows the driver to select the proper gear for the operating condition.

3. While engaging (clutch pedal moving up), the clutch slip momentarily. This provide smooth engagement and lessen the shock on gears, shafts and other drive train parts.

4. When engaged (clutch pedal up), the clutch transmit power from the engine to the transmission. All slipping has stop.

OPERATION OF CLUTCH

DISENGAGED When the engine is running, the flywheel is

rotating. The pressure plate is attached to the flywheel so the pressure plate also rotates. This friction disc is located between the two.

When the clutch pedal is released, the driver has push down on the clutch pedal. This action forces the friction disc to move away to the pressure plate. No power transmitted to the clutch.

ENGAGED When the driver releases the clutch pedal, power

can flow through the clutch. Spring in the clutches forces the pressure plate against the friction disc. This action clamps the friction disc against tightly between the flywheel and the pressure plate.

Now the pressure plate and the friction disc rotate with the flywheel. The friction disc assembled on a splined shaft that carries the rotary motion to the transmission.

PURPOSE OF CLUTCH

1. When the transfer if power is to be cut, the clutch must instantaneously and completely disconnect the engine from the transmission.

2. When the transfer of power is to be started the clutch must exhibit a certain degrees of sliding so that the engine and transmission can be engaged gradually.

3. When the engine and the transmission have been securely connected the clutch must transfer power without any lost of strip.

Types of Clutches