ar2810d1002b

Assemble transfer case

Type ar · topic 28.10 · version 0110 · 2009-10-20

Applies to: MODEL 903.0 /4, 904.0 /4 with CODE (ZG1) Engageable all-wheel drive

Where it sits

Function group 2 Chassis › 28 Transfer case › 28.10 Complete transfer case — Series 903 (models 0**, 4**) · Series 904 (models 0**, 4**)

EinPAS 17 Drivetrain/axle › 17.22 Transfer case › 17.22.80 Transfer case, complete — Series 903 (models 0**, 4**) · Series 904 (models 0**, 4**)

AR28.10-D-1002B

Assemble transfer case

16.10.09

MODEL 903.0 /4, 904.0 /4 with CODE (ZG1) Engageable all-wheel drive

Assemble transfer case

D28.10-0015-09

Assemble transfer case

D28.10-0016-09

1 Collar nut

2 Connector flange

3 Radial shaft seal

4 Circlip

5 Nut

6 Washer

7 Rear holder

8 Housing rear section

9 Housing front section

10 Pressure switch

11 Sealing ring

12 Screw

13 Circlip

14 Radial shaft seal

15 Connector flange

16 Collar nut

17 Screw

35 Collar nut

36 Tapered roller bearing outer race

37 Tapered roller bearing

38 Thrust plate

39 Driven gear

40 Needle roller bearing

41 Needle roller bearing

42 Front axle output shaft

43 Shift sleeve

44 Tapered roller bearing

45 Tapered roller bearing outer race

46 Seal boot

47 Shift fork

48 Gasket

49 Bushing
(as of transfer case. End no.: 000820)

18 Front bracket

19 Circlip

20 Cap

21 Circlip

22 Radial shaft seal

23 Connector flange

24 Collar nut

25 Tapered roller bearing outer race

26 Tapered roller bearing

27 Input shaft

28 Tapered roller bearing

29 Tapered roller bearing outer race

30 Tapered roller bearing outer race

31 Tapered roller bearing

32 Intermediate shaft

33 Tapered roller bearing

34 Tapered roller bearing outer race

Assemble

1

Install bushings (49)

As of transfer case End no.: 000820

AR28.10-D-1002-02A

Sealant

*BR00.45-Z-1026-01A

2

Install circlip (4).

Retaining ring pliers

Check that retaining ring is correctly seated.

3

Install tapered roller bearing outer races (25, 30, 36)

Drive the tapered roller bearing outer races all the way into the housing from inside.

*389589011500

4

Install tapered roller bearing outer races (29, 34, 45)

Drive in the outer races from inside so that they are flush with the housing.

*460589151500

5

Place tapered roller bearings (26, 28) on intermediate shaft (27)

Heat up the tapered roller bearing to

125 °C.

Position using a drift if necessary.

*460589151500

6

Place tapered roller bearing (31, 33) on intermediate shaft (32)

Heat up the tapered roller bearing to

125 °C.

Position using a drift if necessary.

*460589151500

7

Assemble front axle output shaft (42)

AR28.50-D-1000-04A

*BA28.50-N-1001-01B

Drift

*460589151500

Heat up the tapered roller bearing to

125 °C.

8

Secure collar nut (35)

AR33.30-D-0085-03A

9

Clean sealing surfaces of housing parts (8, 9)

10

Prepare shift fork (47) for installation

AR28.50-D-1002-02A

Sealant

*BR00.45-Z-1026-01A

Lubricant

*BR00.45-Z-1001-06A

11

Insert front axle output shaft (42) with shift fork (47) in the housing rear part (8)

Make sure that the shift fork is fitted at the correct position.

12

Insert drive shaft (27) and intermediate shaft (32)

13

Attach housing front section (9)

The bearing play is adjusted by the retaining ring thickness

AR28.10-D-1002-01A

*BA28.40-N-1003-01E

Retaining ring pliers

Circlip set for determining circlip thickness

WF58.50-N-2810-01A

14

Install cap (20)

Replace the cap.

15

Tighten pressure switch (10)

Fit new sealing ring

*BA28.19-N-1003-01B

16

Install radial shaft sealing rings (3, 14, 22)

Replace the radial shaft sealing rings.

*750589021500

17

Install coupling flanges (2, 15, 23)

Replace the collar nuts.

*BA28.10-N-1006-01C

*BA28.10-N-1007-01C

Retainer wrench

*717589003100

18

Secure collar nuts (1, 16, 24)

AR33.30-D-0085-03A

Install

19

Install transfer case.

AR28.10-D-0100A

20

Pour oil into transfer case

AP28.00-D-2801A

Transfer case gear set, shafts

Number

Designation

Model 903.0/4, 904.0/4
with code ZG1/ZG3

BA28.50-N-1001-01B

Nut to front axle output shaft

Nm

200

Transfer case housing

Number

Designation

Models 903.0/4/6, 904.0/4/6
with code ZG1

BA28.40-N-1003-01E

Nut securing front housing section to rear housing section

Nm

28

Transfer case electrical system

Number

Designation

Models 903.0/4/6, 904.0/4/6 with code ZG1

BA28.19-N-1003-01B

Temperature sensor to housing

Nm

9

Transfer case complete

Number

Designation

Models 903.0/4, 904.0/4
with code ZG1

BA28.10-N-1006-01C

Nut, coupling flange to transmission/to front axle to transfer case

M261.5

Nm

300

BA28.10-N-1007-01C

Nut, coupling flange to rear axle to transfer case

M261.5

Nm

300

Assemble transfer case
Assemble transfer case
Assemble transfer case
Assemble transfer case

460 589 15 15 00

Drift

Drift

Drift

Retainer wrench

389 589 01 15 00

750 589 02 15 00

717 589 00 31 00

Repair materials

Number

Designation

Order number

BR00.45-Z-1026-01A

Terostat 33 sealant

A 001 989 61 20

BR00.45-Z-1001-06A

Long-life grease

A 000 989 63 51 11

Referenced documents