Brakes: Braking Systems: Brakes procedures
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Topic IntroductionHelp

Removing & replacing a rotor

Summary
Before working on a vehicle's brakes, attach a safety notice to the vehicle to prevent people attempting to operate the brakes. The objective of this procedure is to show you how to safely remove and reinstall a disc brake rotor.

Part 1. Preparation and safety

Objective

Removing & replacing a rotor

Personal safety

Whenever you perform a task in the workshop you must use personal protective clothing and equipment that is appropriate for the task and which conforms to your local safety regulations and policies. Among other items, this may include:

If you are not certain what is appropriate or required, ask your supervisor.

Safety check

Points to note


Part 2: Step-by-step instruction

  1. Attach safety notice
    Before working on a vehicle’s brakes, attach an appropriate label to the vehicle to prevent accidental actuation of the brake caliper while it is removed from the hub.
  2. Prepare the vehicle
    Safely raise the vehicle and remove the wheel.
    Remove the brake pads and caliper; making sure the caliper is located safely away from the rotor.
  3. Remove the rotor
    Remove the rotor by unbolting the securing device and sliding it away from the wheel hub.
  4. Prepare the new rotor
    Before installing the new rotor, clean it thoroughly in a component washer to remove any storage preservative agents. Clean any dirt, rust and debris from the hub mating surface. Secure the rotor to the hub and rotate it by hand to ensure it rotates freely.
  5. Reassemble the wheel
    Refit the brake caliper and disc pads. Apply the brakes several times to readjust the caliper pistons. Refit the road wheel & safely lower the vehicle.
  6. Road test the vehicle
    Ask your supervisor to check the brake system pedal pressure, fluid levels, and visual signs of leaks. When the supervisor is satisfied, the vehicle should be road tested by a qualified person to ensure the integrity of the braking system.