I work as a heavy equipment mechanic and we have a CP 200 and CP 300. The 200 seems to have died. It is putting out a little over 32v at two of the transformers but only 6v at the bottom transformer. The brushes are good and not binding and I don't seem to have a broken connection that I can find. Any thoughts?? We also have the CP 300 that we pulled out of storage. I'm sure it may have mor problems but right off the bat the contactor switch will not close when the trigger is pulled. It has an S-22A attached. Both are wired for 460v 3 phase. By the way I am not an expert with 3 phase or with high voltage so feel free to treat me like a dummy when it comes to help. Any thought would be helpful.