OK....here goes....
pull the filter out.....
using two ratchet tie downs, and you sort of do a criss cross, some run it under the 2 blades of the agitator, other times down through the barrel, and through the slots and back up....
across the top of the machine.....lay down to folded towels on each side....and a 2x4 across the opening.....
now, run the ratchets, again, criss cross if possible....over top of the 2x4....
ratchet snug, with a bit of tension.....sometimes when pulled tight enough, the agitator will pop off, other times, allow the machine to fill half way with hot water with some tension....
make sure hot is hot, like 140 or more....not bath water hot.....if you have to, boil 2 or 3 large pots of water on the stove and pour in there....
rarely will one never pop off at this point....