January 11, 201412 yr This rail warped when I did some welding after I unclamped it from the bench. I have used this method to straighten many things. I usually use a bottle jack, but at this shop they had a porta-power. I had to make a small adapter to keep the chain on top of the piston. The shop owner liked the idea, so I thought someone else might be able to use it as well.
January 11, 201412 yr I've done that as well using a bottle jack many times. I've also propped up the ends and leaned on the center with the bucket on the trackhoe on occasion to straighten things out.
January 11, 201412 yr A little OT. A friend of mine restores cars. He was a body man of the old school. He would adjust the fit of a door by hanging on it while the door was open. Uncanny how close he could get.
January 11, 201412 yr I used the same technique to straighten one of the posts on my shop. It was damaged by a fork when loading or unloading and I didn't notice it till I laid it on the shop slab before putting the frame together. A little chain and a hydraulic jack straightened ad took the twist out of it. It took more time to set it up than true it up. Frosty The Lucky.
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