What could go wrong with a vise, eh? Well.... I have a 5" "Alltrade" which I picked up at an estate sale. It looks like this, but not as clean.
http://www.alltradetools.com/catalog/vises/1380-835273-multipurpose-bench-vise.html
(I was surprised to see that Alltrade has Snap-on under its umbrella, but I digress)
Anyway, I was trying to use my vise as a press to press a rusted shaft out of a bore. Something you would use a hydraulic press for if you had one. I rigged up a punch of sorts and a die on the other end to press the shaft into, and I cranked on that vise. I cranked, let it sit for a day, more penetrating oil, more heat on that frozen shaft, and cranked the vise again, a fraction of a turn, lather, rinse, repeat. Long story short, never was able to press the shaft out and had to have it drilled out.
But now my vise, through my own stupidity, will not smoothly crank in and out. It binds on every rotation of the screw thread. I clearly deformed something, but I can not figure out what.
The threaded shaft still seems true and I can not see any areas where the thread is damaged, etc. I've disassembled, cleaned, lubed, and it still binds. It's not totally shot, but I can't spin it with one finger, for example. Anyone have any suggestions? Do I need to put a dial indicator on the thread and check the entire thing for even invisible deformation? TIA for any suggestions.