DISC BRAKE SERVICEDISC BRAKE SERVICE

1. Review parts & operation of disc brakes

2. Complete brake inspection

3. Brake job disc brakes

4. Machine rotors

5. Pack wheel bearings

Review of BasicsReview of Basics

In terms of energy what do brakes do? Convert mechanical energy to heat energy. Why are disc brakes better than drum brakes? Disc brakes dissipate heat more efficiently. Which does more braking? A braked turning

wheel or a braked locked-up wheel? Braking only occurs when the wheel are turning,

Disc Brake PartsDisc Brake Parts

Rotor Caliper Brake pads Piston Square cut seal Dust boot Guide pins Mounting bracket

Inspecting Disc BrakesInspecting Disc Brakes

Road test and function checks

Shop testsDisc brake pad

thicknessInspection of rotor.

(Miking)

Road TestRoad Test

Pulsation Brake Pull Brake Lock-up Spongy Pedal Drag Fade

Scraping Squeal Grinding Clunk Vibration

Shop InspectionShop InspectionCaliper, Pads, Rotor & HardwareCaliper, Pads, Rotor & Hardware

Inspect brake hose for cracks.

Inspect the brake pads for there thickness. The pad material should be at least as thick as the backing plate.

Look for any damage to the mis. hardware.

Mike the rotor.

MicrometerMicrometer

Disc Brake ServiceDisc Brake Service

Disassembly and Removal of Caliper

C-Clamp Inspection of

Hardware Replacing Pads Disc Brake Quiet Reassembly

Machining RotorsMachining Rotors

A limited amount of metal can removed from the rotor because of heat dissipation.

Thickness of rotor new.Machine to thickness.Discard thickness.

Machining RotorsMachining Rotors

Measuring rotor thickness

Mounting on lathe Scratch cut Coarse Cut(s) .006” Fine Cut .004” Cleaning hub

Removing the RotorRemoving the Rotor

Mounting on the LatheMounting on the Lathe

Cleaning Wheel BearingsCleaning Wheel Bearings

Installing New Oil SealInstalling New Oil Seal

Installing the RotorInstalling the Rotor