Sink Flange Gasket/Seal

I found that while KitchenAid did not have any info on KCD1250S1, it did have instructions for KCBD250S1 and the two are very similar. so I used those instructions - which were not as complete as one would like, but with some experimentation they gave me enough clues that it worked. First, do not remove the red cover or the Styrofoam tha ... Read more t is underneath the plastic. Second, the removal of the disposal was easy once I learned that the key was to stick a Allen head screwdriver into one of the round metal openings that hide above the red plastic cover. Then shove the screwdriver (which will rotate the metal fitting) clockwise when you are underneath looking upward. Catch the heavy disposal when it decides to come loose. Do everything to get the new parts into place, it's easy. Put the Flange, seals and brackets in place and tighten the screws. The next step is putting the screwdriver into one of the rotating flange metal holes, then forcing the heavy disposal completely up into the flange fitting (I had to look down through the sink drain hole and guess where everything really was), and shoving the screwdriver (rotate the flange) counter clockwise, again when looking up from beneath the disposal. I suspect that if you do this a few times it gets easier. It now works perfectly.