Shopsmith Forums

Hi I recently purchased and old jig saw or scroll saw. I refurbished it and depended upon my memory on how to reassemble it Have it altogether but cant figure out how the tube attaches securely to the base. I see it has a roll pin but and put a screw in the side to draw it up but it still remains fairly loose. Any one have a diagram to point me in the right direction> Dont want to strip the threads as they are aluminum. Is there a spacer there I missed?
Thanks
Woodmeister formerly alisfair