ar4020s0200a

Chassis alignment

Type ar · topic 40.20 · version 0101 · 1999-05-26

Applies to: MODEL 638

Where it sits

Function group 2 Chassis › 40 Wheels, chassis alignment check › 40.20 Chassis measurement — Series 638

EinPAS 20 Chassis › 20.10 Wheel alignment › 20.10.20 Diagnosis/testing/measurement/adjusting — Series 638

AR40.20-S-0200A

Chassis alignment

4.7.95

MODEL 638

Measuring and adjusting

1

Move the vehicle to the measuring station.

The measuring system must be approved by Mercedes-Benz

Abide by the general instructions for chassis alignment

AR40.20-S-0201A

2

Disconnect the rotating plates

3

Install brake pedal tensioning device in brake pedal

*000589183100

4

Install the Mercedes-Benz quick-release clamping holder

Install the value detector

AR40.20-S-0230A

5

Carry out initial measurement

The real values of the relative magnitudes of the vehicle will be measured

6

Measure the vehicle level on the front and rear axle

The toe-in, camber and caster will be adjusted with reference to the vehicle level

AR40.20-S-0301A

7

Check and adjust the camber and toe-in on the rear axle

AR40.20-S-0334A

8

Check and adjust the camber and caster on front axle

AR40.20-S-0322A

9

Check and adjust toe-in on front axle

AR40.20-S-0323A

10

Carry out final alignment

Apart from a control measurement of the magnitudes or adjusted values, a check must be carried out especially on the toe-out on turns which is essential for the steering geometry

Check toe-out on turns

AR40.20-S-0325A

11

Remove the value detector

AR40.20-S-0230A

12

Remove the brake pedal tensioning device from the brake pedal

13

Take the vehicle out of the measuring station

.

14

Lock the rotating plates

Chassis alignment

000 589 18 31 00

Brake pedal winch

Referenced documents