Originally Posted by makman
Same Question Here! Help!!
We finally figured out how to change the coupling on the Model ksb580cr0
1. Remove the bottom of the blender by taking off the feet cushions and loosening the screws.
2. There is a long cylindrical piece of metal that runs all the way through the motor and sticks out a little in the middle of the fan. While using vise grips to hold the current coupling in place, use a flat headed screw driver to turn the metal piece to the right (if you're looking at the bottom of the blender).
3. This should release the coupling. Then unscrew the coupling to remove it.
4. Screw the new coupling in and put the bottom the blender back on.
Hope that helps!