blender blades stopped turning

ApplianceKitchenAid Small Appliance

ModelKSB5MC4

Level of DifficultyEasy

Time to do repair15 - 30 mins

Age of Appliance1 - 4 years

Tools

John From Brookltn, NY

Sep 16, 2010

1 out of 2 people found this instruction helpful

I used a pair of diagonal cutters to nip away at the drive coupling which had become gummy and soft. This exposed the inner aluminum hub that the drive coupling was molded to. I used several pieces of masking tape to protect the blender finish under the drive coupling. The instruction supplied suggest to pry upward with a screw driver at 1/4 turn intervals until it comes off the motor shaft. I thought this was a rough approach, as I was concerned about damaging the threaded motor shaft. Also note that the motor shaft has left handed threads, you would turn clockwise to loosen the drive coupling. The first approach I tried was to use a small ignition wrench, there are two flats directly below the coupling aluminum hub which measured 9/32" across the flats. The wrench even though small would have to been ground thinner to fit, this may have worked. I decided to use approach two. I used my dremel tool with a 1/32" cut off wheel and cut through each side of the aluminum hub staying away from the center where the motor shaft is threaded. Across the center of the hub I only cut through half the thickness, I then used the diagonal cutters to fold each half agains itself (the hub actually fell off). I installed the new coupling turning it counter clockwise on the motor shaft. I attached the blender jar filled with water with the jar lid on and toggled the blender on and off a few times to further tighten the drive coupling.

Help other customers find the most helpful instructions.

Were these instructions helpful?

Diagrams and Parts List for this repair

Part PhotoPart DescriptionPriceAvailability

Drive Coupling

Part Number: PS401661

$7.82
In Stock