Pinion Seal for the Clutch (AOC), Replacing

Pinion seal for the clutch (AOC), replacing
Special tools: 999 5652, 999 5744, 999 5304, 999 5069, 999 7025

Note: As the illustrations in this service information are used for different model years and/or models, some variation may occur. However, the essential information is always correct.

Removal
Removing the exhaust system
Remove the exhaust system.

Removing the propeller shaft
Remove the propeller shaft from the flange for Active On-demand Coupling.

Removing the flange





Remove the nut for the flange. Use counterhold 999 5652 and adapter 999 5744. Mark the flange in relation to the end of the shaft.
Position a container underneath the Active On-demand Coupling.
Remove the flange. If the flange is stuck, use puller 999 5304.
Check that the mating surface on the flange is not damaged. If necessary replace the flange.

Removing the seal





Remove the seal from the Active On-demand Coupling. Use extractor 999 5069.
Check thoroughly that no seal residue remains.

Installation
Installing the seal





Lubricate the new seal using the oil for Active On-demand Coupling, P/N 116 1641 (1 liter packs). Use drift 999 7025 for installation. Tap the seal into place until the surface of the drift is against the housing for Active On-demand Coupling.

Installing the flange





Install the flange on the Active On-demand Coupling (AOC) using the previous markings (if using the old flange).
Install a new nut for the shaft and flange. Use counterhold 999 5652 with adapter 999 5744. Tighten the nut. Tighten to 100 Nm.
Fill the Active On-demand Coupling (AOC) with oil. Check the oil level.

Installing the propeller shaft
Install the propeller shaft.

Installing the exhaust system
Install the exhaust system.