ar3325l0400a

Remove/install steering knuckle

Type ar · topic 33.25 · version 0110 · 2011-09-13

Applies to: FRONT AXLE 730.353 in MODEL 670.398 FRONT AXLE 730.354 in MODEL 670.4

Where it sits

Function group 2 Chassis › 33 Front axle › 33.25 Axle housing, stub axle — Series 670 (models 398, 4**)

EinPAS 17 Drivetrain/axle › 17.50 Front axle › 17.50.42 Steering knuckle/wheel hub/wheel bearing — Series 670 (models 398, 4**)

Also applies to engines/gearboxes: 730 353, 730 354

AR33.25-L-0400A

Remove/install steering knuckle

8.9.11

FRONT AXLE 730.353 in MODEL 670.398

FRONT AXLE 730.354 in MODEL 670.4

Remove/install steering knuckle

N33.25-0263-06

1 Kingpin bushing

2 Input shaft

3 Drag link

4 Lubricating nipple

5 Screw

6 Pitman arm

7 Castle nut

8 Split pin

9 Steering knuckle bearing bolt

10 Thrust ring

11 Thrust washer

12 Sealing ring

13 Steering knuckle

14 Taper roller thrust bearing

15 Screw

16 Tie rod

17 Screw

18 Knuckle arm

Remove/install

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

1

Drain front axle gear oil

AR33.25-L-0300-01A

Oil drain screw.

*BA33.30-N-1001-01B

Oil filler screw.

*BA33.30-N-1002-01B

*BF33.30-N-1001-01A

2

Remove front wheel hub

AR33.20-L-0310A

3

Pry off drag link (3) at pitman arm (6)

Installation: Replace cotter pin (8).

AR46.40-L-0100-01A

*601589043300

Slotted nut.

*BA46.40-N-1001-04A

Nut on collar clamp.

*BA46.40-N-1002-04A

4

Pry tie rod (16) off knuckle arm (18)

Installation: Replace cotter pin (8).

AR46.40-L-0200-01A

*601589043300

Slotted nut.

*BA46.40-N-1002-01A

Nut on collar clamp.

*BA46.40-N-1003-01A

5

Disassemble upper and lower steering knuckle bearing bolt (9)

Installation: Replace bolts (5, 15), thrust ring (10) and seal ring (12). Check axial tapered roller bearing (14) and replace if necessary.
Check steering knuckle (13) for condition and replace if necessary.

AR33.25-L-0400-10A

Bolt, upper kingpin.

*BA33.25-N-1003-01D

Bolt, lower kingpin.

*BA33.25-N-1004-01D

Bolt, knuckle arm.

*BA33.25-N-1005-01D

Nut, steering stop bolt.

*BA33.25-N-1007-01D

Install upper steering knuckle bearing bolt (9) only after checking and adjusting the axial play at the steering knuckle .

Check axial play of steering knuckle and adjust if necessary
Determine the thickness of the pressure plate again.

AR33.25-L-0400-04A

*BE33.25-N-1006-01B

6

Remove steering knuckle (13)

Installation: Pack the bearing point in the steering knuckle with the specified grease quantity.

*BF33.25-N-1001-01A

7

Pull drive shaft (2) out of the front axle tube

Installation: Do not damage sealing rings.
Check drive shaft bearing in axle tube, if necessary. .

Replace drive shaft bearing in axle tube.

AR33.25-L-0300-03A

*000589293300

*000589343300

*305589011500

*BR00.45-Z-1034-06A

8

Drive out kingpin bushings (1)

Replace kingpin bushings (1).

AR33.25-L-0300-04A

*352589061500

9

Check drive shaft bearing in steering knuckle

If necessary:

Replace drive shaft bearing in steering knuckle

AR33.25-L-0300-02A

*000589293300

*000589343300

*305589011500

*BR00.45-Z-1034-06A

10

Drive radial shaft sealing rings (12) out of steering knuckle (13)

Replace radial shaft sealing rings (12).

AR33.25-L-0300-05A

Checking

11

Check all detachable parts for wear or damage and replace if necessary

12

Install in the reverse order

13

In each case pack kingpin with specified grease quantity at lubricating nipple

*BF33.25-N-1002-01A

Test and adjustment values for steering knuckle

Number

Designation

Front axle 730.353/354

BE33.25-N-1006-01B

Preload of kingpin bearing

mm

0,10,05

Axle housing, steering knuckle

Number

Designation

Front axle 730.353/354

BA33.25-N-1003-01D

Bolt, upper kingpin to steering knuckle

M16x1.5

10.9

Nm

220

12.9

Nm

310

BA33.25-N-1004-01D

Bolt, lower kingpin to steering knuckle

M12x1.5

Nm

160

BA33.25-N-1005-01D

Bolt, knuckle arm to steering knuckle

M12x1.5

10.9

Nm

100

12.9

Nm

160

BA33.25-N-1007-01D

Nut, steering stop bolt to steering knuckle

M16x1.5

Nm

200

Front axle drive

Number

Designation

Front axle 730.35

BA33.30-N-1001-01B

Oil drain plug

Nm

100

BA33.30-N-1002-01B

Oil filler plug

Nm

100

Tie rod

Number

Designation

Steering 765.841 in model 670
with front axle 730.353/354

BA46.40-N-1002-01A

Nut, tie rod to knuckle arm

Nm

205

BA46.40-N-1003-01A

Nut, hose clamp to tie rod

–

Nm

–

M10

Nm

60

M121.5

Nm

85

Drag link

Number

Designation

Steering 765.841 in model 670
with front axle 730.353/354

BA46.40-N-1001-04A

Nut, drag link to pitman arm

Nm

205

BA46.40-N-1002-04A

Nut, hose clamp to drag link

–

Nm

–

M10

Nm

60

M121.5

Nm

85

Axle housing, steering knuckle

Number

Designation

Front axle 730.353/354

BF33.25-N-1001-01A

Multipurpose grease

Filling quantity for steering knuckle

g

100

Specifications for Operating Fluids

Sheet

BB00.40-P-0267-00A

BF33.25-N-1002-01A

Multipurpose grease

Filling quantity for steering knuckle pin

g

20

Specifications for Operating Fluids

Sheet

BB00.40-P-0267-00A

Differential gear

Number

Designation

Front axle 730.35

BF33.30-N-1001-01A

Hypoid gear oil

Filling capacity

Liters

2.5

Specifications for Operating Fluids

Sheet

BB00.40-P-0235-00A

Sheet

BB00.40-P-0235-06A

Sheet

BB00.40-P-0235-08A

Sheet

BB00.40-P-0235-20A

Remove/install steering knuckle
Remove/install steering knuckle
Remove/install steering knuckle
Remove/install steering knuckle

000 589 34 33 00

Drift

Counter stay

Internal puller

Drift

000 589 29 33 00

305 589 01 15 00

352 589 06 15 00

Remove/install steering knuckle

Puller

601 589 04 33 00

Repair materials

Number

Designation

Order number

BR00.45-Z-1034-06A

MB multipurpose grease

A 001 989 34 51 10

Referenced documents