This is a long shot, but why not try. I have an older Rockwell Model 9 contractors saw. The elevating shaft has frozen in it's eccentric tube. I tried for weeks, soaking in penetrating oil, heat, good old fashioned banging. It is stuck and will never be useable again. Rockwell (Delta) doesn't make that part anymore (they make the tube, but not the shaft and associated gear and such). My local scrounge shop has one (a whole saw) they'd sell me but I found a Powermatic for about the same money and bought it. I'm still not giving up on finding a stray part... anyone have one or know a potential source?
Ed Baltimore