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Brake Disc Assembled Lateral Runout Correction -- Indexing

Special Tools

CH-45101-100 Conical Brake Disc Washers

For equivalent regional tools, refer to Special Tools .

Warning: Refer to Brake Dust Warning in the Preface section.





Note: 

•	Brake disc thickness variation MUST be checked BEFORE checking for assembled lateral runout (LRO). Thickness variation exceeding the maximum acceptable level can cause brake pulsation. Refer to Brake Disc Thickness Variation Measurement .

•	Brake disc assembled LRO exceeding the maximum allowable specification can cause thickness variation to develop in the brake disc over time, usually between 4,800-11, 300 km (3,000-7,000 mi). Refer to Brake Disc Assembled Lateral Runout Measurement .

1. Remove the CH-45101-100 Conical Brake Disc Washers and the lug nuts that were installed during the assembled LRO measurement procedure.
2. Inspect the mating surface of the hub/axle flange and the brake disc to ensure that there are no foreign particles or debris remaining.
3. Index the brake disc in a different orientation to the hub/axle flange.
4. Hold the disc firmly in place against the hub/axle flange and install one of the CH-45101-100 Conical Brake Disc Washers (1) and one lug nut (2) onto the upper-most wheel stud.
5. Continue to hold the disc secure and tighten the wheel nut firmly by hand.



6. Install the remaining CH-45101-100 Conical Brake Disc Washers and lug nuts onto the wheel studs and tighten the nuts firmly by hand in a star-pattern.
7. Tighten the lug nuts in a star-pattern to specification, in order to properly secure the disc. Refer to Tyre and Wheel Removal and Installation .
8. Measure the assembled LRO of the brake disc. Refer to Brake Disc Assembled Lateral Runout Measurement .
9. Compare the amount of change between this measurement and the original measurement.
10. If this measurement is within specifications, proceed to step 14.
11. If this measurement still exceeds specifications, repeat steps 1-9 until the best assembled LRO measurement is obtained.
12. Matchmark the final location of the disc to the wheel studs if the orientation is different than it was originally.
13. If the brake disc assembled LRO measurement still exceeds the maximum allowable specification, refer to Brake Disc Assembled Lateral Runout Correction .
14. If the brake disc assembled LRO is within specification, install the brake calliper and depress the brake pedal several times to secure the disc in place before removing the CH-45101-100 Conical Brake Disc Washers and the lug nuts.