Standard Brakes

Brake Disc Run Out - Check

Special Service tools





Dial Test Indicator Gauge and Stand.

1. Raise rear of vehicle and support on stands.
2. Remove wheel.





3. CAUTION: Tie caliper housing aside. Do not allow the caliper housing to hang on the hydraulic hose, as this will damage the hose.

Remove caliper housing from caliper carrier.
Remove anti-rattle spring.
Remove dust covers.
Remove guide pins.
Remove housing from carrier.
Tie caliper housing aside.

4. NOTE: Measurement of the brake disc run-out, must be carried-out with the disc and hub parking-brake adjuster-holes aligned.

Make sure that wheel bearing end-float is correct.





5. Measure brake disc run-out.
Install brake disc to hub and secure with all wheel nuts, tighten wheel nuts to 20 Nm in a diagonal sequence.
Position the gauge so that the pointer contacts the disc 10 mm from its outer edge.
Slowly rotate the disc one revolution, the disc run-out must not exceed the specification.
6. If the brake disc run-out exceeds specification, check the hub face run-out.
7. Remove brake discs. Service and Repair





8. Measure hub face run-out.
Position the gauge so that the pointer contacts the hub face.
Slowly rotate the hub one revolution, the hub run-out must not exceed the specification.
If the hub exceeds the maximum run-out specification replace the hub.

9. NOTE: Make sure the brake disc and hub mating surfaces are clean.

If the hub run-out is within specification replace brake discs. Service and Repair





10. Install caliper housing to caliper carrier.
Align housing to carrier.
Install and tighten guide pins to 25 - 30 Nm.
Install dust covers.
Install anti-rattle spring.
11. Fit wheel.