Remove the O-ring, being careful not to damage the planetary gear splines.
For support when working with the press, place a plate under the driven gear to release and remove the circlip A, push it against the clutch housing.
The differential is removed by pressing hard on the planetary gear.
Bearing replacement (gear side)
Insert a block into the housing and place it flat on the bearing.
Press out the bearing using the bushing.
Installation
Bearing separator C is directed in the opposite direction from the driven gear.
Press in the bearing using the tool (V.Vi. 1059) supported by the outer ring of the bearing.
From planetary gear
Remove the circlip A holding the bearing.
Press the bearing with a 50 mm diameter bushing into the crankcase.
Mount the bearing using a 65 mm diameter bushing. The bearing cage must face away from the driven gear.
Install the circlip holding the bearing.
Reinstall the differential into the crankcase. Place a block of wood under the gear.
Install circlip B on tool head 1 (B.Vi.946), and then the head to the planetary gear.
Install fixture 2 (B.Vi.946) on the head and insert with force until the snap ring snaps into place. Remove fixture (B.Vi.946).
Rotate the entire assembly and check if the speedometer drive gear is rotating (if it is installed).