Download - PP T336 Disc Brake Service.ppt
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