1. Brakes - 2
Mr. Lombardi

2. Brakes
Modern automotive brake systems use hydraulic force to create friction
Convert motion to heat energy
2 brake types
Disc Brakes
Drum Brakes

3. Drum Brakes
Three Main Parts
Drums
Shoes
Wheel Cylinder

4. Drum Brakes
Hydraulic pressure pushes wheel cylinder pistons (1800 psi.)
The friction between the stationary shoes and the revolving drums causes the drums to slow and stop the rear wheels.

5. Simple Drum Brake Parts

6. Drum Brake Parts

7. Drum Brake Shoes
Two Parts
Steel Backing
Friction Material

8. Drum Brake Parts
Wheel Cylinder

9. Drum Brake Parts
Drum

10. Drum Brake Parts
Hoses

11. Drum Brake Parts When servicing drum brakes, do one side at a time.
If you get confused, the other side can guide you.

12. Special Brake Tools

13. Special Brake Tools

14. Special Brake Tools

15. Be sure to torque all fasteners to manufactures recommendations!
Drum Brakes
Be sure to torque all fasteners to manufactures recommendations!

16. Drum Brakes
Pump brake pedal several times to seat shoes, readjust as necessary.
Top off master cylinder as necessary

17. The End