Remove/install main shaft and countershaft with shift unit

AR26.50-D-0002B

Remove/install main shaft and countershaft with shift unit

17.6.11

4.11.10

"Socket wrench bit for removing and tightening nut for output flange" added.

Operation steps 1, 4 and 5

AR26.40-D-2475-03C

"Socket wrench bit for tightening nut for output flange" added.

Operation steps 4 and 5

AR26.50-D-0002-04A

Use puller to detach transmission housing rear section.

AR26.50-D-0002-03A

Use puller to detach transmission housing rear section.

AR26.50-D-0002-03B



Removing

1

Remove transmission

AR26.10-D-0020H

2

Fasten transmission on assembly stand

AR26.10-D-0036A

3

Remove front section of transmission housing

 Refer to Disassemble/assemble transmission housing.

AR26.40-D-2002E

4

Remove shift shaft

AR26.60-D-6500A

5

Remove inner bearing race (13)

Transmission 711.685

AR26.50-D-4775-04A

 Extraction tool

*711589023300

 Puller

*001589503300

6

Insert gear set with rear section of transmission housing (3) in support fixture (11)

Transmission 711.680

AR26.40-D-2475-07C

 Support fixture

*711589034000

Transmission 711.685

AR26.40-D-2475-07B

 Support fixture

*711589034000

7

Remove output flange (2)

AR26.40-D-2475-03C

 Pin wrench

*901589000700

 Socket wrench bit

*000589750900

 Puller

*000589653300

8

Detach rear section of transmission housing (3) from gear set

Transmission 711.680

AR26.50-D-0002-03A

 Puller

*711589033300

Transmission 711.685

AR26.50-D-0002-03B

 Puller

*711589033300

9

Remove main shaft (7) and countershaft (14) with shift unit from support fixture (11)

AR26.50-D-0002-02A

 Support fixture

*711589034000

10

Remove radial shaft sealing ring and the main shaft bearing (7) from the rear section of the transmission housing (3)

 The radial shaft sealing ring and bearing must always be replaced.

 See Disassemble/assemble rear section of transmission housing (3).

AR26.40-D-2476E



Install

11

Install new bearing and new radial shaft sealing ring for the main shaft (7) in the rear section of the transmission housing (3)

 See Disassemble/assemble rear section of transmission housing (3).

AR26.40-D-2476E

12

Insert main shaft (7) and countershaft (14) with shift unit into support fixture (11)

AR26.50-D-0002-01A

 Support fixture

*711589034000

13

Install rear section of transmission housing (3) on gear set

AR26.50-D-0002-04A



*BA26.50-N-1001-01D

 Pin wrench

*901589000700

 Socket wrench bit

*000589750900

14

Attach rear section of transmission housing (3) along with gear set onto the assembly stand

AR26.10-D-0036A

15

Install intermediate plate (4)

Transmission 711.685

AR26.40-D-0330-09B



*BA26.40-N-1021-01A



*BA26.40-N-1025-01A

16

Install inner bearing race (13)

Transmission 711.685

AR26.50-D-4775-04A

 Drift

*716589021500

17

Install shift shaft

AR26.60-D-6500A

18

Install front section of transmission housing

AR26.40-D-2002E

19

Detach transmission from assembly stand

AR26.10-D-0036A

20

Install transmission

AR26.10-D-0020H

Number

Designation

Trans-mission
711.685

BA26.40-N-1021-01A

Bolt, intermediate plate to transmission housing rear section

Nm

33

BA26.40-N-1025-01A

Bolt, bearing cap to intermediate plate

Nm

50

Number

Designation

Trans-mission
711.680

Trans-mission
711.685

BA26.50-N-1001-01D

Nut, output flange to main shaft

M121.5

Nm

-

-

M241.5

Stage 1

Nm

-

-

Stage 2

Nm

-

-

Stage 3

Nm

-

-

M261.5

Stage 1

Nm

200

200

Stage 2

Nm

Releasing

Releasing

Stage 3

Nm

160

160