Braking Systems Power Point
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Transcript Braking Systems Power Point
Brake Systems & Basic Hydraulics
A History of Braking
How do you stop a Stage Coach?
No Matter the how you stop it!
Friction – the resistance between two moving parts!
Is the Key!
Basic Hydraulics
“Pascal's Law”
Pressure exerted upon a mass of liquid in a closed container,
transmits that pressure in all directions!
3000 lbs
3000 lbs
500 lbs
100 lbs
3000 lbs
3000 lbs
100 lbs
500 lbs
3000 lbs
500 lbs
3000 lbs
Basic Hydraulics
“Pascal's Law”
Transmits Motion Also!
2”
½”
1”
½”
1”
½”
1”
Down Diameter
Volume
down
1” Diameter
must
1” equal
UpEach
Diameters
volume up
½”!
Down Diameter 1” Up Diameter 2”
Pascal Law & Automotive Braking
Hydraulic Brake Components
Single Cylinder
Master Cylinder
Dual Cylinder
Master Cylinder
Master Cylinder
Pedal Pressure
Hydraulic Brake Components
Proportioning Valve
Wheel Cylinder
Hydraulic Brake Components
Brake Caliper
Bleeding the Hydraulics
With
Manual
a Pressure
Bleeding
Bleeder
“DOWN”
“UP”
“Open”
“Close”
No More Air Pockets
Remember to
“Repeat
atin
other
wheels”
Check
fluid
Master
Cylinder
Drum Brakes
Anchor Pin
Primary Shoe
Secondary
Shoe
Wheel Cylinder
BrakeDrum
Shoes
Return Brake
Springs
Brake Shoe Retainer
Drum Brakes
Manual
Self Adjusting
Adjusting
Parking
Brake
Disk Brakes
Disk
Basic
Caliper
Brake
Operation
Types
Pads
Pressure exerted over a larger surface area per PSI means
“BETTER BRAKING”
Disk Brakes
Disk Brake Advantages
Disk Brake Disadvantages
- better braking
- cost more, initial & replacement
- less parts
- easy replacement
- easy wear inspection
- better cooling
- no adjustment required
- wet splash
- parking brake problems
Power Brakes
ABS Brakes
Anti Lock Brake System
Brake Demo’s
- Replacing
Brake Shoes
- Replacing Brake Pads
- Wheel Cylinder Honing
- Machining a Drum
- Machining a Rotor