DISC BRAKE SERVICE
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DISC BRAKE SERVICE. Review parts & operation of disc brakes Complete brake inspection Brake job disc brakes Machine rotors Pack wheel bearings. Review of Basics. In terms of energy what do brakes do? Convert mechanical energy to heat energy. Why are disc brakes better than drum brakes?

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DISC BRAKE SERVICE

  • Review parts & operation of disc brakes

  • Complete brake inspection

  • Brake job disc brakes

  • Machine rotors

  • Pack wheel bearings


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Review 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,


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Disc Brake Parts

  • Rotor

  • Caliper

  • Brake pads

  • Piston

  • Square cut seal

  • Dust boot

  • Guide pins

  • Mounting bracket


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Inspecting Disc Brakes

  • Road test and function checks

  • Shop tests

  • Disc brake pad thickness

  • Inspection of rotor. (Miking)


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Pulsation

Brake Pull

Brake Lock-up

Spongy Pedal

Drag

Fade

Scraping

Squeal

Grinding

Clunk

Vibration

Road Test


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Shop InspectionCaliper, 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.



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Disc Brake Service

  • Disassembly and Removal of Caliper

  • C-Clamp

  • Inspection of Hardware

  • Replacing Pads

  • Disc Brake Quiet

  • Reassembly


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Machining Rotors

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

  • Thickness of rotor new.

  • Machine to thickness.

  • Discard thickness.


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Machining Rotors

  • Measuring rotor thickness

  • Mounting on lathe

  • Scratch cut

  • Coarse Cut(s) .006”

  • Fine Cut .004”

  • Cleaning hub







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