I have a Blackhawk spot welder and need someone with same welder to post a close up photo of the rod with the spring on it that connects handle to the lower electrode swivel. Model I WE 1200. Probably 70’s or 80’s. Looks like the rod has been got at on left end in close up photo and spring does not keep electrodes apart . I can’t find any info on this welder on the web. A parts list diagram would be a godsend.