The worm gear driven by the motor stripped due to excessive load.

ApplianceKitchenAid Mixer

ModelK5SS

Level of DifficultyEasy

Time to do repair15 - 30 mins

Age of ApplianceMore than 10 years

Tools Screw drivers

James From Central City, IA

Nov 06, 2012

Remove the mixer head from the base by removing the 4 Phillips head screws. Pry off the ring around the rotating part with a flat head screwdriver. Punch out the pin holding the rotating part and remove. Remove the trim strip by removing the two Phillips screws at the rear of the unit. Remove the 4 screws at the bottom of the mixer head. Carefully separate the bottom of the head from the top using a flat screw driver. There will be the power wires connecting the top to the bottom of the unit. It is best to disconnect these wires to avoid breaking them during rest of the procedure. There will be a lot of grease in the gear box of the mixer. The assembly holding the damaged worm gear can now be removed by removing the three screws holding it to the bottom of the mixer head. At this point I removed the grease from the worm gear assembly to allow better inspection. Punch out the pin holding the worm gear to its shaft and remove the shaft. The worm gear is now free and can be replaced. Add some extra grease to the new gear and reassemble the mixer in the reverse order.

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Diagrams and Parts List for this repair

Part PhotoPart DescriptionPriceAvailability

Worm Gear

Part Number: PS1491159

$5.79
In Stock