I did a search and did not see any comments on heat. my drum turns freely and i tried turning the adjuster thru the hole in the backing plate but no luck. the drum seems seized to the hub. there is no play at all like you would expect with hung up shoes. i tried the 3lb hammer on the drum edge to force the drum out but no luck. they say to not use acetlyene heat since its too hot and could warp the drum. maybe a better type of penetrant spray on the hub seam?