Fix 14 cup Cuisinart jammed bowl interlock mechanism

If your 14 cup Cuisinart food processor won't start because the prong will not push down the interlock mechanism, try using WD40 with a spout, spraying the metal part near the top of the bowl.  
It should now work and the processor will run correctly.  
You could also put bowl in dishwasher for a cycle and see if that clears the jammed mechanism.