I've found that if you soak/ spray the top nut with SeaFoam and you liberally spray/soak the bottom bolt /nut with Mechanic In A Bottle, well hell, the blade just falls off!!!
" But let me tell you something ,folks: You can't fix stupid!
There's not a pill you can take, there's not a class you can go to. Stupid is forever!"
" Pay no attention to that man behind the curtain!