K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
8. If the witness mark does not extend three-quarters or more of the way around the brake rotor, re-mount the rotor to the lathe.
9. Following the brake lathe manufacturer's instructions, refinish the brake rotor.
10. After each successive cut, inspect the brake rotor thickness. Refer to Brake Rotor Thickness Measurement .
11. If at any time the brake rotor exceeds the minimum allowable thickness after refinish specification, the brake rotor must be replaced.
12. After refinishing the brake rotor, use the following procedure in order to obtain the desired non-directional finish:
12.1.
Follow the brake lathe manufacturer's recommended speed setting for applying a non-directional finish
12.2.
Using moderate pressure, apply the non-directional finish:
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If the lathe is equipped with a non-directional finishing tool, apply the finish with 120 grit aluminum oxide sandpaper
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If the lathe is not equipped with a non-directional finishing tool, apply the finish with a sanding block and 150 grit aluminum oxide
sandpaper
12.3.
After applying a non-directional finish, clean each friction surface of the brake rotor with denatured alcohol, or an equivalent approved
brake cleaner
13. Remove the brake rotor from the brake lathe.
14. Measure the assembled lateral runout (LRO) of the brake rotor to ensure optimum performance of the disc brakes. Refer to Brake Rotor
Assembled Lateral Runout (LRO) Measurement .
15. If the brake rotor assembled LRO measurement exceeds the specification, bring the LRO to within specifications. Refer to Brake Rotor Assembled
Lateral Runout (LRO) Correction .
