Remove/install and adjusting main shaft and countershaft

AR26.50-D-2001D

Remove/install and adjusting main shaft and countershaft

11.11.11



Removing

1

Disassemble transmission housing

 Leave transmission housing rear section with shafts and shift rails on the press-in tool after separating the housing halves.

AR26.40-D-2002C

2

Remove pilot bearing (2) from transmission main shaft

3

Remove roller cage (11) from the countershaft

Only if transmission 711.605 fitted

4

Remove 4th gear synchronizer cone (3)

5

Remove 4th gear synchronizer ring (4)

6

Remove reverse idler shaft (9) with reverse gear

AR26.50-D-2002-01A

7

Remove main shaft (5), shift rails (6) and countershaft (10)

AR26.50-D-2002-03B

Collecting box

*711589016300

8

Remove roller cage (8) from the countershaft

Only if transmission 711.605 fitted

Adjust

9

Install transmission housing rear section (7) on the press-in tool

 Press-in tool

*711589004300

10

Adjust axial play of countershaft

Only if transmission 711.605 fitted

Only if the countershaft, a countershaft bearing or a housing part was replaced.

AR26.50-D-2001-02C

Countershaft axial play

*BE26.50-N-1005-01D

 Internal extractor

*000589273300

 Countersupport

*000589333300

Depth gauge measuring range

Caliper gage, measuring range up to

500 mm



Install

11

Pull bearing outer race of the tapered roller bearing (8) in the transmission housing rear section using internal extractor and mount on the corresponding bearing of the countershaft

Only with transmission 711.620/621

Only if the tapered roller bearing in the transmission housing rear section, the countershaft, or a component of the drive plate of the power takeoff code N05/N07 has been replaced.

 Internal extractor

*000589293300

 Countersupport

*000589343300

12

Adjust axial play of drive plate

Only with transmission 711.620/621 and code N05/N07

Only if the tapered roller bearing in the transmission housing rear section, the countershaft, or a component of the drive plate of the power takeoff code has been replaced.

AR26.45-D-0015-15A

Axial play of power takeoff output shaft

*BE26.45-N-1001-01E

Depth gage

13

Insert bearing outer race of tapered roller bearing (8) into the transmission housing rear section

Only with transmission 711.620/621

Only if the two preceding steps have been carried out.

 Drift

*711589091500

14

Insert roller cage (8) into the transmission housing rear section (7) using MB long-life grease

Only if transmission 711.605 fitted

 Installation position: The collar (arrow C) of the roller cage (8) must point towards the housing.

Long-life grease

*BR00.45-Z-1001-06A

15

Assemble shift rails (6)

 The cutouts (arrow B) must align with the center bars of the shift rails. The deepened side of the embossed ovals (arrows A) on the two outer shift rails must point outwards. The center shift rail does not contain any embossing.

16

Insert shift rails (6) in the correct position into the sliding sleeves of the transmission main shaft (5)

17

Install main shaft with shift rails and countershaft in rear section of transmission housing

AR26.50-D-2002-02B

 Press-in tool

*711589004300

Centering device

*711589026300

Centering device

*711589036300

18

Insert reverse idler shaft (9)

AR26.50-D-2002-01A

Length of roll pins on reverse idler shaft

*BE26.50-N-1004-01D

19

Mount 4th gear synchronizer ring (4)

20

Mount 4th gear synchronizer cone (3)

21

Insert roller cage (11) into the outer race in the transmission housing front section using long-life grease

Only if transmission 711.605 fitted

 Installation position: The collar (arrow C) of the roller cage (8) must point towards the housing.

Long-life grease

*BR00.45-Z-1001-06A

22

Mount pilot bearing (2) on the transmission main shaft

23

Assemble transmission housing

AR26.40-D-2002C

Number

Designation

Trans-mission 711.620/
621 with code N07

BE26.45-N-1001-01E

Axial play of power takeoff output shaft

mm

0,00

Number

Designation

Trans-mission 711.605

Transmission
711.620/621

BE26.50-N-1004-01D

Length of roll pins on reverse idler shaft

"A"

mm

53,55

46,15

BE26.50-N-1005-01D

Countershaft axial play

mm

0,1-0,2

0 (-0.06/+0.02)

Number

Designation

Order number

BR00.45-Z-1001-06A

Long-life grease

A 000 989 63 51 11