Same problem with my 35-HP 'bota. Clay ground keeps the hole from "self-bailing". Do not underestimate the force of sticky earth. Try moving the tractor a little if you have a hydro-shift, you should be able to move 1' in either direction, sometimes this helps break it loose. I break more shear pins than I care to count but sometimes I can do it without breaking any. Does anybody make a reversible PTO in a mid-size tractor? If not they should consider it an option just for things like this. I rented a bob cat and it did the same thing but you could reverse the pto, made life much simpler.
I heard there was a big that had different flutes that was designed for gumbo/clay soil that would not stick as bad but I never went any further on it.
Another thing I heard but have not tried is to wet the auger first or pour a little water in the hole while it is turning to loosen the grip.
I heard there was a big that had different flutes that was designed for gumbo/clay soil that would not stick as bad but I never went any further on it.
Another thing I heard but have not tried is to wet the auger first or pour a little water in the hole while it is turning to loosen the grip.