Operation CHARM: Car repair manuals for everyone.
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Brake Rotor/Disc: Testing and Inspection

INSPECTION
Surface
Check rotor for roughness, cracks or chips.

Runout
1. Secure rotor to wheel hub with two wheel lug nuts.
2. Check runout using a suitable dial indicator.
3. Refer to ``Disc Brake Specifications'' for maximum runout allowance.

Thickness
Refer to Specifications for minimum allowable thickness.