Remove/install front axle gear

AR33.30-S-0525E

Remove/install front axle gear

19.04.2018

Model

447 with engine 651

with code ZG2 (Permanent all-wheel drive)

Modification notes

12.04.2018

Method extended, special tool 447 589 01 33 00 Extraction tool added.

Operation step 7

AR33.30-S-0525-05E

12.04.2018

Special tool 447 589 01 33 00 Extraction tool added.

Step 9

12.04.2018

Method extended

Operation steps 8, 12

1

Propeller shaft

10

Screw

8

Front axle transmission

11

Screw

9

Bolts

12

Screw

2

Breather

 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

 Caution

Risk of injury to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil

Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.

AS00.40-Z-0001-01A



Remove

1

Remove steering gear.

AR46.20-S-0500EA

2

Remove front axle shafts.

AR33.30-S-6530EA

3

Remove bolts (10, 12).

 Do not twist the screw/bolt (11) when removing the screw/bolt (12).

4

Support the front axle differential (8).



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B



000 588 10 62 00 Support plate

WS26.00-P-3309B

5

Remove bolts (9).

6

Remove propeller shaft (1) from front axle differential (8).

AR41.10-S-0070EA

7

Remove front axle differential (8).

 Helper required.



Check

8

Check version of breather (2) on bleed line.

If the old version (picture A) of the breather (2) is installed,



replace breather (2) with new version (picture B).



Install

9

Install front axle differential (8).

AR33.30-S-0525-05E

Topical note

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

AH00.00-P-0020-01A

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW



000 588 10 62 00 Support plate

WS26.00-P-3309B



000 588 11 62 00 Major assembly mount

WS01.00-P-0092B


The work instructions for attaching the front axle transmission (8) must be followed precisely.
Malfunction or damage can occur otherwise.

 Commercially available devices/tools
Box wrench bit TX E14

 Bolt (hexagon socket) tolerance compensator on front axle transmission

*BA33.30-N-1003-03C

 Bolt, front axle transmission to top bracket

*BA33.30-N-1004-03C

 Bolt, front axle transmission to bottom bracket

*BA33.30-N-1005-03C

 Bolt, front axle transmission to oil pan

*BA33.30-N-1006-03C

 Bolt, bottom bracket to top bracket

*BA33.30-N-1007-03C

 Bolt, top bracket to engine support

*BA33.30-N-1008-03C

 Bolt, top bracket to crankcase

*BA33.30-N-1009-03C

 Extraction tool

*447589013300

10

Install front axle shaft.

AR33.30-S-6530EA

11

Install steering gear.

AR46.20-S-0500EA



Check

12

Check oil level in front axle differential (8).



Hypoid gear oils SAE 75 W-90 (specification 235.8)

BB00.40-P-0235-08A

 Filling screw

*BA33.30-N-1002-03C

If oil level is incorrect,



Correct oil level.



Front axle - oil change

AP33.00-S-3301E

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1002-03C

Filling screw

Nm

17

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1003-03C

Bolt (hexagon socket) tolerance compensator on front axle transmission

Stage 1

Nm

35

Loosen

°

45

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1004-03C

Bolt, front axle transmission to top bracket

M16

Nm

250

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1005-03C

Bolt, front axle transmission to bottom bracket

M14

Nm

168

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1006-03C

Bolt, front axle transmission to oil pan

Nm

58

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1007-03C

Bolt, bottom bracket to top bracket

Stage 1

Nm

40

Stage 2

°

90

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1008-03C

Bolt, top bracket to engine support

Stage 1

Nm

40

Stage 2

°

90

 Front axle gear

Number

Designation

Model 447 with code ZG2

BA33.30-N-1009-03C

Bolt, top bracket to crankcase

Stage 1

Nm

2

Stage 2

Nm

20

Stage 3

°

90