737-200 Trim Wheel removal

[Shadowfax]

Need some advise please on removing the trim wheels. The hex screws in the center of the shaft screw in and out, but I can't turn either of the slotted center nuts at all. I made a tool for to fit the nut but I don't want to force them, I don't know if they are seized or if there is a correct procedure rather than either of them just undoing?
http://www.mycockpit.org/forums/attachment.php?attachmentid=10784&stc=1
Thanks in advance.
Steve

[Conner]

Acetylene torch should do it!! :D If you want to keep it intact I have no idea.
Couldn't resist!

[Shadowfax]

Acetylene torch well it might have come to that ;)

Sorted it now thanks, found the following link it's also a great site full of information.
http://www.flaps2approach.com/journal/2015/4/20/boeing-nut-cracker-loosening-stab-trim-wheel-nuts.html