Perform a wheel alignment check

AR40.20-A-0200LA

Perform a wheel alignment check

15.1.10

 Danger!

Danger to life from lowering vehicle when working between wheels and body. Risk of injury from being trapped or crushed when working on the air suspension

Do not work between the wheel and wheel arch or in the wheel well.

Only carry out check and adjustment operations from underneath the vehicle.

Secure areas with moving vehicle parts against unauthorized access.

AS32.22-Z-0001-01A

1

Print out form for wheel alignment check



Wheel Alignment Form

OF40.20-T-3000-01A

2

Enter vehicle data in form for wheel alignment check

 Enter the following test values and measurement values in the form for wheel alignment check.

3

Check condition of tires

 The condition of the tires can signal problems associated with incorrect front end alignment and suspension problems.

4

Check tire inflation pressure, correct if necessary



AP40.15-A-4060LA

5

Remove wheels from front axle

AR40.10-A-1100LA

6

Check wheel bearing play of front axle and adjust if necessary



Front axle 732.240

AP33.20-A-3351LAC



Front axle 732.241

AP33.20-A-3351LAD

7

Install wheels on the front axle

AR40.10-A-1100LA

8

Check condition of steering mechanism, replace defective components if necessary



AP46.00-A-4650LA

9

Check diagonal control arms and trailing arms of rear axle for play and wear, replace if necessary

10

Check air spring bellows for damage, replace if necessary



AP32.20-A-3255LA

11

Check tires for radial runout

If the specified value is exceeded:

AR40.10-T-1025-02A

Turn the tire on the rim and repeat the check. If the specified value continues to be exceeded, check wheel centering and replace the tire or wheel if necessary.

*BE40.10-N-1001-01D

12

Check rims for lateral runout

If the specified value is exceeded:

AR40.10-T-1025-03A

Replace rim.

*BE40.10-N-1002-01D

13

Drive vehicle onto measuring station

 The chassis alignment must be carried out on a horizontal, level and clean base. A measuring station with workshop pit is advantageous.

14

Drive vehicle with front wheels onto the locked turnplates and unlock turnplates

15

Install axle measuring device

 Install axle measuring equipment as per the manufacturer's operating instructions, align and operate.



Measure

16

Measure toe-in

 If the measurement is not achieved: 

*BE40.20-N-1001-07C

Adjusting toe-in.

AR40.20-A-0100-01LA



*BA46.40-N-1004-01G

17

Measure camber

 The camber cannot be adjusted, if necessary check components for damage.

*BE40.20-N-1001-06C

18

Measuring caster

 If the measurement is not achieved: 

*BE40.20-N-1002-06C

Adjust caster.

AR40.20-A-0100-04LA



*BA33.15-N-1003-01F

19

Measure steering axis inclination

 The steering axis inclination cannot be adjusted, if necessary check components for damage

*BE40.20-N-1001-15B

20

Measure lateral misalignment of front axle and rear axle

 If the measurement is not achieved: 

*BE40.20-N-1001-19B

Check lateral misalignment of axle.

AR40.20-A-0370-02LA



*BA33.15-N-1006-01F



*BA35.15-N-1005-03E



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

21

Measure driveline angle

 If the measurement is not achieved: 

*BE40.20-N-1001-21A

Adjust driveline angle

AR40.20-A-0200-14LA



*BA35.15-N-1002-03E

22

Check and adjust wheel angle

AR46.20-A-0510LA

23

Lock turnplates and drive vehicle down

24

Detach axle measuring device

25

Check/adjust center steering position

AR46.20-A-3020LA

Number

Designation

Model
390.053/054

BE40.10-N-1001-01D

Radial runout at tire
with rim dia.
(wheel mounted on vehicle)

22.5̋

mm

< 1.5

BE40.10-N-1002-01D

Lateral runout of rim for rim dia.
(wheel fitted to the vehicle)

22.5̋

mm

< 2,0

Number

Designation

Model
390.053/054
with front axle 732.241

Model
390.053/054
with front axle 732.240

BE40.20-N-1001-06C

Camber

Left

°

0° 38'(0,2')

0° 45'

Right

°

0° 22'(0,2')

0° 45'

BE40.20-N-1002-06C

Caster

°

1°30'

1° 30'(20')

Number

Designation

Model
390.053/054
with front axle 732.241

Model
390.053/054
with front axle 732.240

BE40.20-N-1001-07C

Toe-in (total)

°

0° 16' 50'' (05')

0° 05' 30'' (05')

Number

Designation

Model
390.053/054
with front axle 732.241

Model
390.053/054
with front axle 732.240

BE40.20-N-1001-15B

Steering axis inclination

Left

°

5° 22'

7° 15'(15')

Right

°

5° 38'

7° 15'(15')

Number

Designation

Model
390.053/054

BE40.20-N-1001-19B

Permissible lateral misalignment of front and rear axles

between axle and center of frame

mm

2

Number

Designation

Model
390.053
with rear axle 741.990

Model
390.053/054
with rear axle 748.785

BE40.20-N-1001-21A

Driveline angle (angular alignment) of rear axle

°

0° (10')

0° (10')

Number

Designation

Front axle 732.241
in model 390.053/054

Front axle 732.240
in model
390.053/054

BA33.15-N-1003-01F

Nut, trailing arm clamp

Nm

60

60

BA33.15-N-1006-01F

Nut, clamp for diagonal control arm

Nm

60

60

Number

Designation

Rear axle 741.990
in model
390.053

Rear axle 748.785
in model
390.053/054

BA35.15-N-1002-03E

Bolt, trailing arm bearing to trailing arm carrier

M16

Nm

230

230

M18

Nm

335

335

BA35.15-N-1005-03E

Nut, clamp for diagonal control arm

Nm

60

60

Number

Designation

Steering 766.422 in model 390.05

BA46.40-N-1004-01G

Nut, hose clamp to tie rod

Nm

70