I purchased a Rockwell RS-15 shaper and Forest City power feeder at an auction this weekend. The shaper is a 1982 model, 5 hp single phase. With the shaper I got the 3/4" spindle and 1 1/4" spindle. I am in the process of cleaning it up and possibly replacing the bearings. The problem I have right now is that the spindle seems to be stuck in the shaper and won't release from the taper. I am able to turn the large nut that holds the spindle to the cartridge about 1/2 turn and it won't budge after that. I have sprayed it with Kroil and am going to wait a few days, but am wondering if anyone has any other ideas.

I only had to pay $165 for the shaper, feeder, and a bunch of cutterheads, so I can afford to put a few dollars into this machine .