Just got done looking on ISMACS at the Free manual. It is word for word identical to the Bruce Manual, even the font, illustrations and instructions on using attachments. Both manuals show Rockford, IL as the company location... mmmm. That gives me a place to start. Page 6 recommends applying kerosene or coal oil to all of the bearings in the head and running machine rapidly to dissolve gummed oil. I think I'll stick with the Tri-flow.