Measuring Lateral Run Out In Hub

Measuring Lateral Run Out In Hub

Special Tools: 999 5418, 999 5507

Preparations







- Get measurement tool set 999 5418.
- Remove brake caliper and brake pads. Then continue as below.

NOTE: Mark brake disc up against hub so disc can return to its old position when installing.

- Clean hub flange carefully. Remove rust with steel blade and steel brush.

Installing measurement equipment







- Install measurement equipment as per illustration. Illustration shows testing front.
- Front: Use M8 bolts, washers and nuts in bolt set 999 5507 when installing measurement tool bracket to front brake caliper mounting hole.

NOTE: Make sure that bracket is not lying against driveshaft gaiter, (front only).

- Rear: Use the bolts included in the measurement tool set when installing measurement tool bracket to the rear brake caliper mounting hole.

Measuring lateral run out







- Put the test gauge point against the hub flange as in the illustration.
- Rotate hub gently. Use a wheel wrench as an aid on the front hub.

NOTE: Illustration shows testing front.

- Note test gauge run out. Hub lateral run out must not exceed 0.020 mm (0.00079 inch.).
- Replace hub if maximum lateral run out exceeds 0.020 mm (0.00079 inch.).

Finishing
- Install brake disc on hub, lining up marks. Tighten locating pin and bolt to 8 Nm (6 ft.lb).