Check and adjust camber and caster at front axle

AR40.20-D-0322TSS

Check and adjust camber and caster at front axle

08.02.2019

Model

907

with code IT9 (4.0 tonner)

except code IT3 (3,0 tonner)

except code IT4 (3,5 tonner)

except code IT5 (5.0 tonner)

except code ZU7 (National version for Canada)

except code ZU8 (National version for USA)

Schematic view of front axle

A

View of camber

α

Camber

B

View of caster

τ

Run-on

1

Cam bolt

2

Screw

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Notes on repair work on suspension components

AH00.00-P-0100-01A



Check

1

Check preconditions for wheel alignment.

AR40.20-D-0050TS

 Determine difference between the inner and outer tire tread channel depth here too.

2.1

Determine front-axle level using the transverse control arm angle bracket with electronic inclinometer.

When measuring with electronic inclinometer.

AR40.20-D-6870TS

2.2

Determine front-axle level through actual front-axle load.

When measuring without electronic inclinometer.

 Commercially available devices/tools
Wheel load scales

3

Perform initial measurement.

AR40.20-D-0200TS

 The actual suspension data such as camber, toe, steering axis inclination, caster and the toe-out angle are determined here.

4

Check camber (α) using front axle level position and assign tabular value.

Permissible difference in front axle camber

*BE40.20-N-1001-13TSS

Model 907 except code A50, CB4, CB8, ZG1, ZG3Camber per wheel

*BE40.20-N-1002-13TSS

Model 907 with code CB4 except code A50, ZG1, ZG3, model 907 with code CB8 except code A50, ZG1, ZG3Camber per wheel

*BE40.20-N-1003-13TSS

Model 907 with code A50 except code ZG1, ZG3Camber per wheel

*BE40.20-N-1004-13TSS

Model 907 with code ZG1, model 907 with code ZG3Camber per wheel

*BE40.20-N-1006-13TSS

5

Check caster (τ) using the vehicle level and assign to tabular value.

 The caster (τ) is design specific and it cannot be adjusted.

Permissible difference in caster between right and left side of vehicle

*BE40.20-N-1001-20TSS

Model 907 except code A50, CB4, CB8, ZG1, ZG3Caster

*BE40.20-N-1002-20TSS

Model 907 with code CB4 except code A50, ZG1, ZG3, model 907 with code CB8 except code A50, ZG1, ZG3Caster

*BE40.20-N-1003-20TSS

Model 907 with code A50 except code ZG1, ZG3Caster

*BE40.20-N-1004-20TSS

Model 907 with code ZG1, model 907 with code ZG3Caster

*BE40.20-N-1006-20TSS

Adjust

6

Remove front wheels.

If actual values deviate from specified values or if the tire outer shoulder is worn and cam bolts (1), bolts (2) and their nuts have not yet been replaced as part of the preceding operations.

AR40.10-D-1100TS

7

Replace cam bolts (1), bolts (2) and their nuts.

If actual values deviate from specified values or if the tire outer shoulder is worn and cam bolts (1), bolts (2) and their nuts have not yet been replaced as part of the preceding operations.



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B

 Lift up shock-absorber struts to replace cam bolts (1) and bolts (2).
Screw in cam bolts (1) and bolts (2) lightly by hand.

8

Install front wheels.

If actual values deviate from specified values or if the tire outer shoulder is worn and cam bolts (1), bolts (2) and their nuts have not yet been replaced as part of the preceding operations.

AR40.10-D-1100TS

9

Mount measuring heads of wheel alignment measurement system again.

If front wheels were removed.

10

adjust camber (α) to specified value.

If the actual values deviate from the specified values or if the tire outer shoulder exhibits wear.

 To do so, adjust camber (α) by turning cam bolts (1), then tighten nuts of cam bolts (1) and bolts (2) to torque (1st stage). Counterhold cam bolts (1) and bolts (2).

 Commercially available devices/tools
Electronic torque wrench / angle tightener

 Bolt, shock-absorber strut to steering knuckle

*BA32.25-N-1003-02TSR

11

Remove front wheels.

If camber (α) was adjusted.

AR40.10-D-1100TS

12

Unscrew nuts of cam bolts (1) and tighten bolts (2) with tightening angle (2nd stage).

If camber (α) was adjusted.

 Counterhold cam bolts (1) and bolts (2).

 Commercially available devices/tools
Electronic torque wrench / angle tightener

 Bolt, shock-absorber strut to steering knuckle

*BA32.25-N-1003-02TSR

13

Install front wheels.

If camber (α) was adjusted.

AR40.10-D-1100TS



Check

14

Perform final measurement.

AR40.20-D-0200TS

Front axle camber

Number

Designation

Model 907 with code IT9 except code A50, CB4, CB8, ZG1, ZG3

Model 907 with code CB4, IT9 except code A50, CB8, ZG1, ZG3,
model 907 with code CB8, IT9 except A50, CB4, ZG1, ZG3

BE40.20-N-1001-13TSS

Permissible difference in front axle camber

right and left side of vehicle

°

1° 10'

1° 10'

Front axle camber

Number

Designation

Model 907 with code A50, IT9 except code ZG1, ZG3

Model 907 with code IT9, ZG1, model 907 with code IT9, ZG3

BE40.20-N-1001-13TSS

Permissible difference in front axle camber

right and left side of vehicle

°

1° 10'

1° 10'

Caster

Number

Designation

Model 907 with code IT9 except code A50, CB4, CB8, ZG1, ZG3

Model 907 with code CB4, IT9 except code A50, CB8, ZG1, ZG3,
model 907 with code CB8, IT9 except A50, CB4, ZG1, ZG3

BE40.20-N-1001-20TSS

Permissible difference in caster between right and left side of vehicle

°

0° 30'

0° 30'

Caster

Number

Designation

Model 907 with code A50, IT9 except code ZG1, ZG3

Model 907 with code IT9, ZG1, model 907 with code IT9, ZG3

BE40.20-N-1001-20TSS

Permissible difference in caster between right and left side of vehicle

°

0° 30'

0° 30'

Front axle camber

Number

Designation

Model 907 with code IT9 except code A50, CB4, CB8, ZG1, ZG3

BE40.20-N-1002-13TSS

Camber per wheel

Transverse control arm angle 1.20° / front axle load 1860 kg

Specified value (actual values outside tolerance)

°

-0° 28 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 28 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-1° 03'

Transverse control arm angle 2.25° / front axle load 1780 kg

Specified value (actual values outside tolerance)

°

-0° 17 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 17 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 52'

Transverse control arm angle 3.30° / front axle load 1700 kg

Specified value (actual values outside tolerance)

°

-0° 06 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 06 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 41'

Transverse control arm angle 4.35° / front axle load 1620 kg

Specified value (actual values outside tolerance)

°

0° 06 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 06 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 29'

Transverse control arm angle 5.39° / front axle load 1540 kg

Specified value (actual values outside tolerance)

°

0° 19 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 19 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 16'

Transverse control arm angle 6.42° / front axle load 1460 kg

Specified value (actual values outside tolerance)

°

0° 31 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 31 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 04'

Transverse control arm angle 7.45° / front axle load 1380 kg

Specified value (actual values outside tolerance)

°

0° 45 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 45 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 10'

Transverse control arm angle 8.48° / front axle load 1300 kg

Specified value (actual values outside tolerance)

°

0° 58 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 58 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 23'

Transverse control arm angle 9.49° / front axle load 1220 kg

Specified value (actual values outside tolerance)

°

1° 12 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 12 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 37'

Transverse control arm angle 10.50° / front axle load 1140 kg

Specified value (actual values outside tolerance)

°

1° 26 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 26 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 51'

Caster

Number

Designation

Model 907 with code IT9 except code A50, CB4, CB8, ZG1, ZG3

BE40.20-N-1002-20TSS

Caster

Transverse control arm angle 1.20° / front axle load 1860 kg

°

5,20°

Transverse control arm angle 2.25° / front axle load 1780 kg

°

5,13°

Transverse control arm angle 3.30° / front axle load 1700 kg

°

5,06°

Transverse control arm angle 4.35° / front axle load 1620 kg

°

5,00°

Transverse control arm angle 5.39° / front axle load 1540 kg

°

4,93°

Transverse control arm angle 6.42° / front axle load 1460 kg

°

4,87°

Transverse control arm angle 7.45° / front axle load 1380 kg

°

4,81°

Transverse control arm angle 8.48° / front axle load 1300 kg

°

4,76°

Transverse control arm angle 9.49° / front axle load 1220 kg

°

4,70°

Transverse control arm angle 10.50° / front axle load 1140 kg

°

4,65°

Front axle camber

Number

Designation

Model 907 with code CB4, IT9 except code A50, CB8, ZG1, ZG3,
model 907 with code CB8, IT9 except A50, CB4, ZG1, ZG3

BE40.20-N-1003-13TSS

Camber per wheel

Transverse control arm angle 3.51° / front axle load 1860 kg

Specified value (actual values outside tolerance)

°

-0° 28 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 28 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-1° 03'

Transverse control arm angle 4.31° / front axle load 1790 kg

Specified value (actual values outside tolerance)

°

-0° 20 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 20 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 55'

Transverse control arm angle 5.10° / front axle load 1720 kg

Specified value (actual values outside tolerance)

°

-0° 10 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 10 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 45'

Transverse control arm angle 5.90° / front axle load 1650 kg

Specified value (actual values outside tolerance)

°

-0° 01 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 01 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 36'

Transverse control arm angle 6.69° / front axle load 1580 kg

Specified value (actual values outside tolerance)

°

0° 09 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 09 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 26'

Transverse control arm angle 7.49° / front axle load 1510 kg

Specified value (actual values outside tolerance)

°

0° 19 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 19 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 16'

Transverse control arm angle 8.29° / front axle load 1440 kg

Specified value (actual values outside tolerance)

°

0° 29 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 29 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 06'

Transverse control arm angle 9.09° / front axle load 1370 kg

Specified value (actual values outside tolerance)

°

0° 40 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 40 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 05'

Transverse control arm angle 9.89° / front axle load 1300 kg

Specified value (actual values outside tolerance)

°

0° 51 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 51 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 16'

Transverse control arm angle 10.69° / front axle load 1230 kg

Specified value (actual values outside tolerance)

°

1° 02 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 02 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 27'

Caster

Number

Designation

Model 907 with code CB4, IT9 except code A50, CB8, ZG1, ZG3,
model 907 with code CB8, IT9 except A50, CB4, ZG1, ZG3

BE40.20-N-1003-20TSS

Caster

Transverse control arm angle 3.51° / front axle load 1860 kg

°

5,05°

Transverse control arm angle 4.31° / front axle load 1790 kg

°

5,00°

Transverse control arm angle 5.10° / front axle load 1720 kg

°

4,95°

Transverse control arm angle 5.90° / front axle load 1650 kg

°

4,90°

Transverse control arm angle 6.69° / front axle load 1580 kg

°

4,86°

Transverse control arm angle 7.49° / front axle load 1510 kg

°

4,81°

Transverse control arm angle 8.29° / front axle load 1440 kg

°

4,77°

Transverse control arm angle 9.09° / front axle load 1370 kg

°

4,72°

Transverse control arm angle 9.89° / front axle load 1300 kg

°

4,68°

Transverse control arm angle 10.69° / front axle load 1230 kg

°

4,64°

Front axle camber

Number

Designation

Model 907 with code A50, IT9 except code ZG1, ZG3

BE40.20-N-1004-13TSS

Camber per wheel

Transverse control arm angle 1.94° / front axle load 2000 kg

Specified value (actual values outside tolerance)

°

-0° 13 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 13 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 48'

Transverse control arm angle 2.73° / front axle load 1930 kg

Specified value (actual values outside tolerance)

°

-0° 04 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

-0° 04 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 39'

Transverse control arm angle 3.52° / front axle load 1860 kg

Specified value (actual values outside tolerance)

°

0° 05 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 05 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 30'

Transverse control arm angle 4.31° / front axle load 1790 kg

Specified value (actual values outside tolerance)

°

0° 14 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 14 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 21'

Transverse control arm angle 5.10° / front axle load 1720 kg

Specified value (actual values outside tolerance)

°

0° 23 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 23 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 12'

Transverse control arm angle 5.89° / front axle load 1650 kg

Specified value (actual values outside tolerance)

°

0° 33 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 33 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 02'

Transverse control arm angle 6.68° / front axle load 1580 kg

Specified value (actual values outside tolerance)

°

0° 43 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 43 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 08'

Transverse control arm angle 7.47° / front axle load 1510 kg

Specified value (actual values outside tolerance)

°

0° 53 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 53 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 18'

Transverse control arm angle 8.27° / front axle load 1440 kg

Specified value (actual values outside tolerance)

°

1° 03 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 03 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 28'

Transverse control arm angle 9.06° / front axle load 1370 kg

Specified value (actual values outside tolerance)

°

1° 14 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 14 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 39'

Caster

Number

Designation

Model 907 with code A50, IT9 except code ZG1, ZG3

BE40.20-N-1004-20TSS

Caster

Transverse control arm angle 1.94° / front axle load 2000 kg

°

5,15°

Transverse control arm angle 2.73° / front axle load 1930 kg

°

5,10°

Transverse control arm angle 3.52° / front axle load 1860 kg

°

5,05°

Transverse control arm angle 4.31° / front axle load 1790 kg

°

5,00°

Transverse control arm angle 5.10° / front axle load 1720 kg

°

4,95°

Transverse control arm angle 5.89° / front axle load 1650 kg

°

4,90°

Transverse control arm angle 6.68° / front axle load 1580 kg

°

4,86°

Transverse control arm angle 7.47° / front axle load 1510 kg

°

4,81°

Transverse control arm angle 8.27° / front axle load 1440 kg

°

4,77°

Transverse control arm angle 9.06° / front axle load 1370 kg

°

4,73°

Front axle camber

Number

Designation

Model 907 with code IT9, ZG1, model 907 with code IT9, ZG3

BE40.20-N-1006-13TSS

Camber per wheel

Transverse control arm angle 2.75° / front axle load 2000 kg

Specified value (actual values outside tolerance)

°

0° 00 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 00 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 35'

Transverse control arm angle 3.96° / front axle load 1910 kg

Specified value (actual values outside tolerance)

°

0° 08 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 08 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 27'

Transverse control arm angle 5.16° / front axle load 1820 kg

Specified value (actual values outside tolerance)

°

0° 17 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 17 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 18'

Transverse control arm angle 6.35° / front axle load 1730 kg

Specified value (actual values outside tolerance)

°

0° 26 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 26 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

-0° 09'

Transverse control arm angle 7.53° / front axle load 1640 kg

Specified value (actual values outside tolerance)

°

0° 36 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 36 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 01'

Transverse control arm angle 8.70° / front axle load 1550 kg

Specified value (actual values outside tolerance)

°

0° 46 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 46 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 11'

Transverse control arm angle 9.87° / front axle load 1460 kg

Specified value (actual values outside tolerance)

°

0° 57 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

0° 57 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 22'

Transverse control arm angle 11.02° / front axle load 1370 kg

Specified value (actual values outside tolerance)

°

1° 08 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 08 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 33'

Transverse control arm angle 12.17° / front axle load 1280 kg

Specified value (actual values outside tolerance)

°

1° 20 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 20 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 45'

Transverse control arm angle 13.31° / front axle load 1190 kg

Specified value (actual values outside tolerance)

°

1° 31 ( 35')'

Specified value (actual values within tolerance, wear to outer shoulder of tire)

°

1° 31 ( 35')'

Specified value (actual values within tolerance, severe wear to outer shoulder of tire)

°

0° 56'

Caster

Number

Designation

Model 907 with code IT9, ZG1, model 907 with code IT9, ZG3

BE40.20-N-1006-20TSS

Caster

Transverse control arm angle 2.75° / front axle load 2000 kg

°

4,15°

Transverse control arm angle 3.96° / front axle load 1910 kg

°

4,10°

Transverse control arm angle 5.16° / front axle load 1820 kg

°

4,05°

Transverse control arm angle 6.35° / front axle load 1730 kg

°

4,00°

Transverse control arm angle 7.53° / front axle load 1640 kg

°

3,95°

Transverse control arm angle 8.70° / front axle load 1550 kg

°

3,91°

Transverse control arm angle 9.87° / front axle load 1460 kg

°

3,87°

Transverse control arm angle 11.02° / front axle load 1370 kg

°

3,83°

Transverse control arm angle 12.17° / front axle load 1280 kg

°

3,79°

Transverse control arm angle 13.31° / front axle load 1190 kg

°

3,73°

 Front axle damper strut

Number

Designation

Model 907

BA32.25-N-1003-02TSR

Bolt, shock-absorber strut to steering knuckle

Stage 1

Nm

140

Stage 2

0

120