Planetary Gears: Service and Repair

PLANETARY GEARSETS AND CHAIN DRIVE PARTS DISASSEMBLY/ASSEMBLY





1. Clean and inspect the front planetary sun gear and shell assembly for damage or wear and install new, as necessary.

- Gear teeth
- Shell-to-clutch pack surfaces
- Thrust bearing surfaces





2. Clean and inspect the front planetary gear carrier/rear ring gear assembly for damage or excessive wear and install new, as necessary.

- Pinion gear teeth
- Pinion gear surfaces
- Pinion gear bearings
- Spline teeth
- Thrust bearing
- Thrust bearing surfaces
- Ring gear teeth





3. Clean and inspect the center planetary gear carrier/front ring gear assembly for damage or excessive wear and install new, as necessary.

- Pinion gear teeth
- Pinion gear surfaces
- Pinion gear bearings
- Spline teeth
- Thrust bearing
- Thrust bearing surfaces
- Ring gear teeth





4. Clean and inspect the center planetary sun gear for damage or excessive wear and install new, as necessary.

- Sun gear teeth
- Spline teeth





5. Clean and inspect the rear planetary gear carrier/center ring gear assembly for damage or excessive wear and install new, as necessary.

- Pinion gear teeth
- Pinion gear surfaces
- Pinion gear bearings
- Spline teeth
- Thrust bearing
- Thrust bearing surfaces
- Ring gear teeth





6. Clean and inspect the rear planetary sun gear and shell assembly for damage or wear and install new, if necessary.

- Sun gear teeth
- Shell-to-clutch pack surfaces
- Bearing surfaces





7. Remove the drive chain from the drive and driven sprockets.





8. Clean and inspect the drive chain for damage or excessive wear and install new, if necessary.

- Check the drive chain for wear, stretching or tightness of the chain links.
- Check that the chain moves freely.





9. Inspect the driven sprocket for damage or excessive wear and install new, if necessary.

- Chain teeth
- Spline teeth
- Thrust bearing surfaces
- Bearing





10. Remove the snap ring and remove the drive sprocket from the front planetary hub/park gear assembly.





11. Inspect the drive sprocket for damage or excessive wear and install new, if necessary.

- Chain teeth
- Spline teeth
- Thrust washer surface





12. Inspect the front planetary hub/park gear assembly for damage or excessive wear and install new, if necessary.

- Park gear teeth
- Spline teeth
- Thrust washer surface
- Thrust bearing surface
- Bearing surfaces
- Needle bearing





13. Install the drive sprocket on the front planetary hub/park gear assembly and install the snap ring.





14. Install the drive chain on the drive and driven sprockets.