Brake Disc, Front, Calibrating

Brake disc front, calibrating

Special tools:
999 5419 Included in 9995418 999 5419 Included In 9995418
999 5418 Measuring kit 999 5418 Measuring Kit
115 8147 Torque Socket 1/2" 19 mm 115 8147 Torque Socket 1/2" 19 mm
999 5507 Screw Set 999 5507 Screw Set

Note! As the illustrations in this service information are used for different model years and/or models, some variation may occur. However, the essential information in the illustrations is always correct.

Preparation





Remove:
- the wheel
- the mounting screws for the brake calliper holder.
Hang the brake calliper from the spring using a wire.

Installing the clamp ring




Install clamp ring 999 5419 Included in 9995418 999 5419 Included In 9995418 , included in test tool kit: 999 5418 Measuring kit 999 5418 Measuring Kit , on the hub with the wheel nuts.
Ensure that mating surfaces on the brake disc and clamp ring are clean.
Install the screws lightly. Then tighten them crosswise. Tighten to 110 Nm. When tightening using an impact wrench, use torque socket 115 8147 TORQUE SOCKET 1/2" 19 MM 115 8147 Torque Socket 1/2" 19 mm.

Installing the bracket for the test equipment




Install the bracket for the brake caliper's upper mounting hole first.
Press the bracket against the constant velocity joint housing.
Then install the lower mounting screw in the brake caliper's lower mounting hole. Clamp the bracket on one side using the flange on the screw.
Use the M12 screws and nuts included in kit 999 5507 SCREW SET 999 5507 Screw Set.

Installing the dial gauge




Install the dial gauge in the bracket as illustrated.

Measuring lateral run-out




Put the test gauge point against the brake disc as illustrated.
Rotate the brake disc. Use a socket to help.
Note the test gauge run-out. Brake disc lateral run-out must not exceed 0.040 mm.
If lateral run-out exceeds the value, replace the brake disc.
To replace the brake disc, see Brake disc front, replacing Brake Disc Front, Replacing.

Finishing




Remove the test equipment.
Install the calliper holder and the brake calliper. Use new screws on the calliper holder.
For tightening torques, see Specifications Tightening Torque.
Install the wheel. See Installing wheels Service and Repair.