Drive/Driven Sprocket and Chain Removal

1. Remove the thrust bearings (132, 417) from the drive and driven sprockets).
2. Remove the following parts:
- The drive sprocket and turbine shaft assembly (407-410)
- The driven sprocket (415)

Important: Mark the chain in order to indicate the direction in which you removed the chain.

- Remove the chain (414)

3. Use two screwdrivers in order to hold the driven sprocket in place, and pry off the driven sprocket . Place small blocks of wood or pieces of plastic under the screwdrivers in order to protect the case. Use a plastic hammer in order to tap the drive sprocket and the turbine shaft.





4. Remove the driven sprocket support assembly (418-427)
5. Keep the scavenge tube seal supported when you remove the scavenge tube. Inspect the scavenge tube case area for a dislodged seal (53).