Disassemble/assemble rear section of transmission housing

AR26.40-P-2476FF

Disassemble/assemble rear section of transmission housing

28.4.15

Transmission

717.4 in model 454.0

1

Rear section of transmission housing

5

Magnet disk

9

Transmission cover

2

Gearshift linkage

6

Oil guide

10

Shift forks

3

Bolts

7

Drive shaft

4

Reverse gearwheel

8

Output shaft

1

Rear section of transmission housing

10

Shift fork

13

Hydraulic press

7

Drive shaft

11

Sleeve

8

Output shaft

12

Sliding sleeve

1

Rear section of transmission housing

14

Output shaft roller bearing

15

Drive shaft roller bearing

16

Transmission oil filler screw

17

Tapered roller bearing outer race



Disassemble

1

Remove differential

AR26.50-P-0540FF

2

Remove magnetic disk (5)

3.1

Remove shift module

Transmission 717.470/471/473/478 in model 454.0

Transmission 717.470/471/473/478 in model 454.0

AR26.60-P-0630FF

3.2

Remove shift actuator

Transmission 717.474/475 in model 454.0

Transmission 717.474/475 in model 454.0

AR26.60-P-0040FF

4

Remove reverse gear gearwheel (4)

AR26.50-P-0460FF

5

Remove oil line (6)

6

Undo screws/bolts (3) of gearshift linkage (2) and remove gearshift linkage (2) from rear section of transmission housing (1)

7

Use a suitable screwdriver to make a hole in the center of both transmission covers (9), pry off the transmission covers (9) and then remove

 The transmission cover (9) for the drive shaft (7) is in two pieces.

8

Remove retaining ring (arrow A) of output shaft (8) and retaining ring (arrow B) of drive shaft (7)

9

Insert rear section of transmission housing (1), as shown, into the hydraulic press (13)

10

Use a suitable sleeve (11) to uniformly press the drive shaft (7) out through the opening (arrow D) and the output shaft (8) out through opening (arrow C)


Ensure that the drive shaft (7) or the output shaft (8) do not tilt or fall down.
Otherwise they may be damaged.

 Because the drive shaft (7) and the output shaft (8) are connected to each other by the shift forks (10), it is not possible to press out the drive shaft (7) or the output shaft (8) in a single pressing procedure.

11

Place drive shaft (7) and output shaft (8) with shift forks (10) onto workbench

12

Remove shift forks (10) from sliding sleeves (12) of drive shaft (7) and output shaft (8)

13

Remove tapered roller bearing of differential together with radial shaft sealing ring and tapered roller bearing outer rings (17)

AR26.50-P-0441FF

14

Remove transmission oil filler screw (16)

15

Remove retaining ring (arrow E) of drive shaft roller bearing (14) and press out drive shaft roller bearing (14)

AR26.50-P-4744-04FF

16

Remove retaining ring (arrow F) of output shaft roller bearing (15) and press out output shaft roller bearing (15)

AR26.50-P-0419-02FF



Assemble

17

Install output shaft roller bearing (15) and fit retaining ring (arrow F)

AR26.50-P-0419-02FF

18

Install drive shaft roller bearing (14) and fit retaining ring (arrow E)

AR26.50-P-4744-04FF

19

Screw on and tighten transmission oil filler screw (16)

 Screw plug to transmission housing

*BA26.40-P-1001-01D

20

Install tapered roller bearing of differential together with radial shaft sealing ring and tapered roller bearing outer rings (17)

AR26.50-P-0441FF

21

Align and position shift forks (10) on sliding sleeves (12) of drive shaft (7) and output shaft (8)

 Pay attention to installation position of shift forks (10).

22

Position drive shaft (7) and output shaft (8) with shift forks (10) in rear section of transmission housing (1)

23

Insert rear section of transmission housing (1), as shown, into the hydraulic press (13)


It must be ensured that the output shaft roller bearing (15) and the drive shaft roller bearing (14) are suitably supported.
Otherwise the output shaft roller bearing (15) or drive shaft roller bearing (14) may be irreparably damaged.

24

Press in drive shaft (7) and output shaft (8) using a suitable sleeve (11) evenly into the rear section of transmission housing (1)


It must be ensured that the output shaft roller bearing (15) and the drive shaft roller bearing (14) are suitably supported.
Otherwise the output shaft roller bearing (15) or drive shaft roller bearing (14) may be irreparably damaged.

 Because the drive shaft (7) and the output shaft (8) are connected to each other by the shift forks (10), it is not possible to install the drive shaft (7) or the output shaft (8) in a single pressing procedure.

25

Remove rear section of transmission housing (1) from hydraulic press (13)

26

Install retaining ring (arrow A) of output shaft (8) and retaining ring (arrow B) of drive shaft (7)

27

Carefully insert new transmission cover (9) using a plastic mallet

 The transmission cover (9) for the drive shaft (7) is in two pieces.

28

Insert gearshift linkage (2) into rear section of transmission housing (1) and fasten in place using screws/bolts (3)

 Bolt, gear module to rear section of transmission housing

*BA26.20-P-1001-04A

29

Install gear wheel for reverse gear (4)

AR26.50-P-0460FF

30

Insert oil line (6)

 Pay attention to installation position.

31.1

Install shift module

Transmission 717.470/471/473/478 in model 454.0

Transmission 717.470/471/473/478 in model 454.0

AR26.60-P-0630FF

31.2

Install shift actuator

Transmission 717.474/475 in model 454.0

Transmission 717.474/475 in model 454.0

AR26.60-P-0040FF

32

Insert magnetic disk (5)

33

Install differential

AR26.50-P-0540FF

 Housing

Number

Designation

Transmission 717.4 in model 454

BA26.20-P-1001-04A

Bolt, gear module to rear section of transmission housing

Nm

20

 Housing

Number

Designation

Transmission 717.470/471/472/473/478 in model 454

Transmission 717.474/475 in model 454

BA26.40-P-1001-01D

Screw plug to transmission housing

Nm

43

43