Thrust Bearing Kit

Removed mixer motor housing by removing 5 obvious screws.
Removed plastic transmission cover by removing 4 obvious screws.
Down load parts exploded drawing from PartSelect.com
Found the worn part by the shiny teeth on the large gear.
Found the large worm gear on the drawing and ordered the gear, and associated bearings. Did not need the seal.
Removed worn part, assembled new gear and beargings in same manner as the worn part, and placed new part in mixer.
Replaced transmission cover gasket.
Repacked grease from transmission cover onto the new gear.
Replaced transmission cover (4 screws).
Replaced mixer motor housing (4 screws).
Replaced mixer trim band around the motor houseing joing. (1 screw).
Plugged it and and it works, good as new.

The parts I received from PartSelect were higher quality than the original parts. The bevel gear and housing were originally plastic. The new ones are solid metal. The machine sounds and runs better than it ever did. The drawings from the website made this really easy. This will be my first choise for parts from now on.

inspected and replaced worn components

Disassambled the gear-train.Removed all broken pieces and grease from gear case. Cleaned gear case and all parts. Reassembled gear-train with new parts and packed all with suitable quantity of new grease. Test run with variable speeds assuming working smoothly.

Opened the gear housing and removed all gears. Cleaned out all grease. Biggest issue was getting the retaining ring; very tight. Gears were difficult to pull easily. In replacing gears they did not sit easily and took a little rubber hammer to re position worm and upper gear. Be sure to have the right grease for food devices and don’t under grease. And have patience of which I have a short supply.

Removed 2 screws holding the switch unplugged the one at a time.
opened the gear box cover 4 Philip screws, cleaned out the grease
removed the pinion gear, removed pin, removed the planet gear assembly replaced gears in reversed order greased it up put gear cover back on and tested worked great.

Taking apart the machine is really easy. I was worried the grease would have spilled all over the places, but when the machine is cool, the grease is solid, so no spill. Replace the parts is quite straightforward, and there are plenty of tutorials on line. The only tip is that the grease used by KitchenAid is dark, and it is not easy to see all the small parts when you take the gearbox apart, so pay attention at what you do and at what you throw away... when I got to put it back together I missed a special concave washer which must have been trapped in the grease. Other than that... it has been an easy repair, the mixer is back up and running and I saved a ton on $$$