Hydraulics and Clutches

Hydraulics and Clutches

Auto Occupations

In this lesson, we will...

• Review the operation of the clutch

• Review Hydraulic Principles and Operation

• Show the parts of the hydraulic clutch system

• Show the parts of a cable clutch system

Multiple Choice

When power from the engine is transmitted to the transmission the clutch is________.

• Engaged

• Disengaged

Multiple Choice

When the clutch is disengaged the clutch pedal is pressed in. True or False

• True

• False

Multiple Choice

What is the name of the part that is sandwiched between the Engine Flywheel and the Pressure Plate?

• Clutch Disc

• Throw Out Bearing

• Crankshaft

• Release Fork

Open Ended

What does the term "clutch slip" mean?

Multiple Choice

What part is the most likely to cause a slipping clutch?

• Clutch Disc

• Throw Out Bearing

• Clutch Release Fork

• Crankshaft

Hydraulics Review

- Fluids cannot be compressed

- Small Piston: Moves Big Piston

- Output Force > Input Force

- Input Movement > Output Movement

Open Ended

How does air affect a hydraulic system?

Hydraulic Clutch System

1. Clutch Pedal

2. Master Cylinder

3. Tubes

4. Release Cylinder (Slave Cylinder)

Master Clynder = Input/Long + Slave Cylinder = Out/Short

Open Ended

If the clutch master cylinder was not able to generate hydraulic pressure how would it affect the system?

Clutch Cable System

• 1. Clutch Pedal

• 2. Clutch Cable

• 3. Pedal Return Spring

• 4. Fork Return Spring

Open Ended

Why would manufacturers choose to use a hydraulic clutch system over a cable system?

Hydraulic Vs Cable

• Hydraulic = Less Force Required

• Better for high horsepower application

• Hydraulic = Harder to maintain (Bleeding, Adjusting, Part Failure)

• Cable is cheaper and simpler