Thank you all for your help I got it. I used dry ice that freed it up enough to complete the stroke it only needed a few thousands of an inch.

Look for other work. That's all I can contribute.

Look for other work. That's all I can contribute.

This was my text a friend....

My first question is obviously is there any way to reverse direction?
But my guess is that may not be practical as inertia is a big part of the equation.

The TCE of the materials (die and ran too!) Are all factors.
Chill out a 5' ram and that's a LOT of reduction in stroke and thus force on the die.

TCE x delta-T x delta-L = reduction in stroke length. Would think you could reverse direction if you chilled the 5' ram by only 10-20F.

An AC blowing on the ram might do that in a couple of hours.

Obvious answer is: "punt"

A picture of the clutch and gears I'm attempting to back up

Is it hydraulic?

I will be the very first to admit , I have absolutely no experience with fabrication machinery , and experience provides education in how to handle mechanical problems , that general knowledge would not provide . I gather , you have had training in your specific field , and have been taught the formulas which apply to this problem . In general terms , as you've already pointed out , cold makes metals shrink . Likewise heat makes them expand . Oil helps to reduce friction , which causes metals to heat and thereby expand , which may have caused the problem in the first place . If I ran into a similar problem I think I would try to attack it from all four points . First , let it cool . Second , apply the appropriate viscosity of oil . Third , as you already mentioned , chill the parts which are too big . Four , heat the parts that are too small , to get them to expand . Unfortunately , I don't think you can run the equipment for very long , in this state , if you can get it running at all . But you may be able , once they are loosened , to remove the problematic part . That said , it would make more sense to me , to remove the offending part , take it to the shop , and either make a new part , but the correct size , or , if possible shave down a part that is a trifle too big . I am sorry , I can not provide you with a specific formula , as I don't have that training . To keep from getting fired , you may consider asking your boss for instructions , If he knows the correct answer , you may pump up his ego by asking him . If he doesn't know the answer , then he doesn't know any more than you do .

Search youtube?