Planetary Gearsets And Chain Drive Parts

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

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
  
  Fig 1: Locating Front Planetary Sun Gear And Shell Assembly
  Courtesy of FORD MOTOR CO.
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
  
  Fig 2: Locating Pinion Gear Teeth, Pinion Gear Surfaces, Pinion Gear Bearings, Spline Teeth And Ring Gear Teeth
  Courtesy of FORD MOTOR CO.
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 surfaces
- Ring gear teeth
  
  Fig 3: Locating Center Planetary Gear Carrier/Front Ring Gear Assembly
  Courtesy of FORD MOTOR CO.
Clean and inspect the center planetary sun gear for damage or excessive wear and install new, as necessary.
- Sun gear teeth
- Spline teeth
  
  Fig 4: Locating Sun Gear Teeth And Spline Teeth
  Courtesy of FORD MOTOR CO.
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 surfaces
- Thrust bearing
- Ring gear teeth
  
  Fig 5: Locating Rear Planetary Gear Carrier/Center Ring Gear Assembly
  Courtesy of FORD MOTOR CO.
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
  
  Fig 6: Locating Rear Planetary Sun Gear And Shell Assembly
  Courtesy of FORD MOTOR CO.
Remove the drive chain from the drive and driven sprockets.

Fig 7: Locating Drive Chain
Courtesy of FORD MOTOR CO.
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.
  
  Fig 8: Identifying Drive Chain
  Courtesy of FORD MOTOR CO.
Inspect the driven sprocket for damage or excessive wear and install new, if necessary.
- Chain teeth
- Spline teeth
- Thrust bearing surfaces
- Bearing
  
  Fig 9: Locating Spline Teeth, Thrust Bearing Surfaces And Bearing
  Courtesy of FORD MOTOR CO.
Remove the snap ring and remove the drive sprocket from the front planetary hub/park gear assembly.

Fig 10: Locating Snap Ring
Courtesy of FORD MOTOR CO.
Inspect the drive sprocket for damage or excessive wear and install new, if necessary.
- Chain teeth
- Spline teeth
- Thrust washer surface
  
  Fig 11: Locating Chain Teeth, Spline Teeth And Thrust Washer Surface
  Courtesy of FORD MOTOR CO.
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
  
  Fig 12: Locating Park Gear Teeth, Spline Teeth And Needle Bearing
  Courtesy of FORD MOTOR CO.
Install the drive sprocket on the front planetary hub/park gear assembly and install the snap ring.

Fig 13: Locating Snap Ring
Courtesy of FORD MOTOR CO.
Install the drive chain on the drive and driven sprockets.

Fig 14: Locating Drive Chain
Courtesy of FORD MOTOR CO.