Retaining Ring

followed instructional video the hardest part was removing the snap ring! once that was removed it was a piece of cake!

1.Remove Mixer top (4 screws) 2.remove gear case cover (4 screws) 3. Remove old retaining ring 4. Lift old bevel gear from shaft. 5. Remove retaining pin from shaft and drop shaft out bottom 6. Remove ALL old grease making sure to get all metal pieces from old bevel gear. 7. inspect all gears for damage 8. replace shaft and retaining pin 9. Place new bevel gear onto shaft and secure with retaining ring 10 Install new grease liberally 11. replace gear cover case and secure with 4 screws 12. Replace case top and secure with 4 screws

Unplugged kitchen aide pro mixer
Used a square bit on drill to unscrew trim piece from mixer
Used same bit to remove top of mixer and again to expose the gears.
Used special pliers to remove the retaining ring.
Pulled off the top gear
Slid out a pin
Pulled off the worm gear
Replaced worm gear replaced pin replaced top gear used pliers to replace retaining ring.
Reassembled the mixer with drill.

1 Open case and get to the gear assembly 2 remove snap ring and remove gear
3 remove pin and remove and replace gear

replaced gear

Problem found is plastic transmission cover cracked causing too much play between gears causing them to skip and strip. New replacement cover is cast metal. Great improvement. Remove trim ring (one screw). Remove top cover (4 screws). Remove plastic transmission cover (4 screws). Remove snap ring that holds too beveled gear. Replace gear and re install snap ring. Replace gear in transmission (other beveled gear) I also replace bronze bushings at each end of the adjacent worm gear. Re pack all gears and transmission cover with fresh grease. Reinstall all gears and transmission cover. Ensure all components are properly seated and lined up. Re instal cover and trim ring. Easy fix. Less than an hour. Works as good as new. Replacement parts fit perfectly.

Took it apart. Saw the broken gear. Got online and ordered the parts and completed the repair as soon as the parts came.