ar3325i0500a

Inspect steering knuckle

Type ar · topic 33.25 · version 0104 · 2009-12-17

Applies to: FRONT AXLE 733.5 in MODEL 397.243, 684.040 /091 /093 /098 /449

Where it sits

Function group 2 Chassis › 33 Front axle › 33.25 Axle housing, stub axle — Series 684 (models 040, 091, 093, 098, 449)

EinPAS 17 Drivetrain/axle › 17.50 Front axle › 17.50.42 Steering knuckle/wheel hub/wheel bearing — Series 684 (models 040, 091, 093, 098, 449)

Also applies to engines/gearboxes: 733 5**

AR33.25-I-0500A

Inspect steering knuckle

9.12.09

FRONT AXLE 733.5 in MODEL 397.243, 684.040 /091 /093 /098 /449

Inspect steering knuckle

N33.25-2002-10

Check

It is not permitted in any way to re-work the steering knuckle.

If a dimension is not within the stated specifications, the steering knuckle must be replaced.

1

Remove steering knuckle

AR33.25-I-0400A

2

Carry out a visual inspection of the steering knuckle

Pay particular attention to cracks and, if necessary, replace the steering knuckle.

3

Measure the concentricity and diameter of the steering knuckle (Fig.A)

Center the steering knuckle in a lathe (Fig. A).

*BE33.25-N-1001-01F

*BE33.25-N-1006-01F

*BE33.25-N-1007-01F

*363589022100

*001589532100

4

Measure bearing bushing bore (Fig.B)

*BE33.25-N-1004-01F

Internal measuring instrument

*001589532100

5

Replace bearing bushings and measure diameter of bearing bushings

After removing, it is always necessary to install new bearing bushings.

The new bearing bushings must be selected to match the diameter of the bearing bushing bore.

*BE33.25-N-1005-01F

6

Install steering knuckle

AR33.25-I-0400A

Test values for steering knuckle

Number

Designation

Front axle 733.562

BE33.25-N-1001-01F

Eccentricity between bearing seat surfaces of steering knuckle

mm

0.05

BE33.25-N-1004-01F

Bearing bushing bore dia. in steering knuckle

mm

35.031...34.969

BE33.25-N-1005-01F

Outer dia. of bearing bushing

mm

35.076...35.060

BE33.25-N-1006-01F

Inner bearing seat of steering knuckle

mm

54.990...54.977

BE33.25-N-1007-01F

Outer bearing seat of steering knuckle

mm

34.991...34.975

Inspect steering knuckle
Inspect steering knuckle

001 589 53 21 00

Dial indicator

Dial indicator holder

363 589 02 21 00

Referenced documents