Dusty, if you get hung up and need more information on repairing, servicing and maintaining a post war Lionel 182 Magnetic Operating Crane you can purchase a 19 page Service manual for this accessory on E- bay from "j4le1943" for about 12 bucks. The information contained in this manual is not available in any of the Greenberg repair books. The manual includes exploded diagrams, views and schematics of the crane as well as actual clear photos of the internal and external components of the crane. It is listed as 1946-1949 Lionel 182 Magnetic Operating Crane Service Manual. Hope this helps you in the future. I got one from this guy and it has been worth its weight in gold.