BMW 7 Series: Checking One Road Wheel On Balancing Machine For Lateral And Radial Runout (Wheel Removed)

Necessary preliminary work

• Remove WHEEL

Mount wheel in balancing machine.

To avoid retooling errors, fit the wheel on the balancing machine in the same way as it is also fitted on the car (valve position facing down).

Fig. 5: Identifying Wheel On Balancing Machine

Use suitable wheel centering element supplied with corresponding balancing machine.

1. Basic flange
2. Wheel centering element
3. Type flange
4. Clamping nut

Fig. 6: Identifying Basic Flange, Wheel Centering Element, Type Flange And Clamping Nut

Use special tool 36 1 030 for testing.

Special tool 36 1 030 consists of:

1. Base 36 1 031
2. Post with clamp 36 1 032
3. Holder with clamp 36 1 033
4. Clamp 36 1 034
5. Measuring roll 36 1 035
6. Dial gauge 36 1 036

Fig. 7: Identifying Special Tool (36 1 030) Components

Position special tool 36 1 030 on tire tread surface.

Turn wheel by hand and measure max. radial tire runout.

NOTE: Measuring device must be vertical to tire tread.

Fig. 8: Measuring Max. Radial Tyre Runout Using Special Tool (36 1 030)

Position special tool 36 1 030 on tire side wall.

Turn wheel by hand and measure max. lateral runout of rim with special tool 36 1 030 (measuring fixture).

NOTE: Measuring device must be vertical to tire side wall.

Never measure on printed text on tire! If necessary, check DISC WHEEL (rim) for radial and face runout.

Fig. 9: Measuring Max. Lateral Tyre Runout Using Special Tool (36 1 030)

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