Disassemble, assemble countershaft

AR26.50-T-4775B

Disassemble, assemble countershaft

11.11.11

 

Disassemble/assemble

 Danger!

Risk of injury to skin and eyes caused by handling hot or glowing objects.

Wear safety gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

1

Remove countershaft (1)

Transmission 714.120

AR26.50-T-0001BA

Transmission 714.668/690/ 691/692

AR26.50-T-0001B

2

Detach locking ring (2) from countershaft (1)

Only on transmission 714.668/690/691/692

 Assembly: Measure the axial play between the inner race of the front tapered roller bearing (5) and the circlip (2) using a feeler gauge. Aim for a setting without play. If necessary, select a circlip (2) of correct thickness.

*BE26.50-N-1001-03B

3

Pull rear tapered roller bearing (3) and front tapered roller bearing (5) off countershaft (1)

 Use aluminum protective jaws in order to avoid damaging the countershaft (1).

 Clamp countershaft (1) in the vise. Fit the gripper on the relevant tapered roller bearing and clamp securely. Pull off relevant tapered roller bearing using puller.

 Assembly: Heat rear tapered roller bearing (3) and front tapered roller bearing (5) to approx. 120 °C with the heating plate and drive all the way onto the countershaft (1).



*000589483400



*001589413300



*750589023400

4

Remove circlip (8)

Only if transmission 714.120 fitted

5

Press constant countershaft gear (4), 5th gear countershaft gear (6) and 3rd and 4th gear countershaft gear (7) off countershaft (1) in succession

 If necessary, heat constant countershaft gear (4), 5th gear countershaft gear (6) and 3rd and 4th gear countershaft gear (7) with hot air gun before pressing off.

 Assembly: Heat 3rd and 4th gear countershaft gear (7), 5th gear countershaft gear (6) and constant countershaft gear (4) to max. 180 °C using heating plate and drive onto countershaft (1) in succession.

Workshop press

gotis://G_58.2_01.0

6

Clean all parts, check for wear and replace parts if necessary

7

Assemble in the reverse order

Number

Designation

Transmission
714.668

Transmission
714.690/691/692

BE26.50-N-1001-03B

Axial play between tapered roller bearing and locking ring

mm

0...0.06

0...0.06