Disc Brakes: Service: Rotor: Notes

The rotor braking surfaces should not be refinished unless necessary. Light surface rust and scale can be removed with a lathe equipped with dual sanding discs. The rotor surfaces can be restored by machining in a disc brake lathe if surface scoring and wear are light. Replace the rotor under the following conditions:

• Severely scored
• Tapered
• Hard Spots
• Cracked
• Below minimum thickness.