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 shown in the figure. Figure 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 shown in the figure.
- Rotate hub gently. Use a wheel wrench as an aid on the front hub.

NOTE: Above figure shows testing front.

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

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