Well, I got it back up and running, but like everything else I ended up with a left over part! See picture, the white object. I think it just goes in the upper arm cover to maybe make sure the wires stay in place. Although, I don't see where the wires would go. It runs, it is quieter, and feels like it is running smoother. Need to work with it a while and see if it remains so.
Thanks for the support, help and advice. I love doing something like this. It really was not hard. The reason I dove into it, I have had a problem with my table saw for some time that I just kept ignoring, thinking it was my imagination. But the blade seemed to move to the right every time I lowered it and raised it up. When it came up I would have to run it to shave a little of my zero clearance. Finally decided I had to look into it. All that waiting, and it only took a couple house to remove the table top, find the problem, fix it and put it back together. Wasn't worth stewing over. So got a problem with the scroll saw, try to fix it. Don't keep putting it off.