Replace the Bearings of All Transmission Shafts

Replace The Bearings Of All Transmission Shafts

Note: Input and output shafts removed




- Rear Case Section:
- Unscrew bolts.
- Remove retaining plates (1 and 2).




- Lever out radial sealing ring for the output flange.

Installation:
- Replace radial sealing ring.




- Drive out the ball bearing for the output shaft toward the inside using Special Tool 23 1 440.




- Layshaft:
- Heat case in area of the ball bearing to about 80°C with a hot air blower.
- Remove ball bearing (1) toward the inside.
- Clean the rear case section to remove dirt.




- Heat rear case section in area of the ball bearing uniformly to about 80°C with a hot air blower.
- Install ball bearings for output shaft and layshaft.
- Insert ball bearing (1) for the layshaft with the shouldered end (1) facing in.




- If necessary, drive in ball bearings to fit tight.
- Output shaft, Special Tool 23 1 470, countershaft, Special Tool 23 1 220 in conjunction with Special Tool 00 5 500 (handle)




- Install retaining plates.
- Insert and secure screws with screw retaining agent.
- Tightening torque: 10 Nm




- In order to replace the inner bearing race (2), the 3rd/4th gear wheel must be pressed oft using tool 23 2 310.
- Removal, refer to "Dismantle and Re-Assemble All the Synchronizing Devices"




- Bearings in Front Case Section:
- Input Shaft:
- Unscrew bolts.
- Remove retaining plates (1).




- Heat case in area of the ball bearing to about 80°C with a hot air blower.
- Pull out ball bearing (2); if necessary drive it out from outside to inside with help of Special Tool 23 1 440.




- Heat case in area of the ball bearing to about 80°C with a hot air blower.
- Install ball bearing (2); if necessary drive it in to fit tight with Special Tool 23 1 470.




- Insert retaining plates (1).
- Insert and secure screws with screw retaining agent.
- Tightening torque: 10 Nm




- Layshaft;
- Bearing shell (1) for needle bearing. Place Special Tool 23 1 280 in bearing shell (1).




- Apply Special Tool 33 4 020.
- Screw on Special Tool 23 1 300.
- Pull out bearing shell.




Installation:
- Insert bearing shell (1) so that the slot in the bearing shell is aligned with beads (2) (turning lock) in the case.




- Drive in bearing shell (1) with Special Tool 23 1 260 in conjunction with Special Tool 00 5 500 (handle).