Remove/install steering gear

AR46.20-S-0500E

Remove/install steering gear

06.02.2020

Model

447 with engine 651

except code ZG2 (Permanent all-wheel drive)

Model

447 with engine 654.9

except code ZG2 (Permanent all-wheel drive)

Model

447, 448 with engine 274

Modification notes

07.03.2019

Perform wheel alignment measurement, added.

Operation step 13

Shown on model 447 with ENGINE 651

1

Steering gear

3

Screw

5

Electrical connectors

2

Universal joint

4

Cross strut

6

Screw

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

Topical note

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

AH00.00-P-0020-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Evaluating steering gear when repairing accident vehicles

Model 447 with engine 274
Model 447 with engine 651
except code ZG2 (Permanent all-wheel drive)
Model 447 with engine 654.9
except code ZG2 (Permanent all-wheel drive)

AH46.20-P-9409-01A

 

Remove/install

1

Move steering gear (1) to center position.

AR46.20-S-0500-01E

 Retainer device

*129589012100

2

Remove lower engine compartment paneling.

AR61.20-S-1105E

3

Remove ball heads of steering gear (1) from steering knuckles.

AR46.40-S-7242E

4

Remove left transverse control arm on front axle.

AR33.20-S-1452E

5

Remove bolt (3) .

 Bolt, universal joint to steering gear

*BA46.20-N-1001-01O

6

Remove universal joint (2) from steering gear (1).

7

Remove cross struts (4).

 Screw, cross strut to front axle carrier/integral carrier

*BA33.10-N-1001-01E

8

Disconnect electrical connectors (5).

9

Unscrew bolts (6) and remove steering gear (1).

 Nut/screw, steering gear to integral carrier or integral carrier diagonal strut

*BA46.20-N-1002-01O

10

Install in the reverse order.

11

Enter new steering number of steering gear (1) through vehicle documentation (VeDoc) into on-line vehicle data card.

If the steering gear (1) was replaced.

 Redocumentation is absolutely essential.

12

Teach-in steering gear (1) using vehicle diagnosis system.

If the steering gear (1) was replaced.



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-S-2000-04E

13

Perform chassis alignment.

AR40.20-S-0200E

 Front axle carrier

Number

Designation

Model 447 with engine 651
except code ZG2 (Permanent all-wheel drive)
Model 447, 448 with engine 274

Model 447 with engine 654.9
except code ZG2 (Permanent all-wheel drive)

BA33.10-N-1001-01E

Screw, cross strut to front axle carrier/integral carrier

Nm

31

31

 Steering gear

Number

Designation

Model 447 with engine 654.9

Model 447 with engine 274, 651
Model 448 with engine 274

BA46.20-N-1001-01O

Bolt, universal joint to steering gear

Stage 1

Nm

15

15

Stage 2

°

180

180

 Steering gear

Number

Designation

Model 447 with engine 654.9

Model 447 with engine 274, 651
Model 448 with engine 274

BA46.20-N-1002-01O

Nut/screw, steering gear to integral carrier or integral carrier diagonal strut

Stage 1

Nm

80

80

Stage 2

°

90

90