Not sure where to put this, so I just put it here. Feel free to move if I'm in the wrong place.
I'm as green to welding as they come. For years I've wanted to learn. I live on and run a small farm. I have dozens of uses for one. I broke a bush hog mower at the mount Saturday and long story short, I've been given an old (very old) Miller Thunderbolt 225 AC style HD-6. According to the Miller website, it was built in 1973 or 74. It has been sitting unused since 1993. I'm told it worked when it was put up.
My shop is wired with an RV plug and I'm building a extension / adapter cord for a 6-50 receptacle tomorrow night. Before I plug this thing in, I wanted to run it by y'all.
I downloaded the manual from Miller's website and followed the maintenance instructions to grease the shunt block. I oiled the fan bearings. The fan turned fine and had no wobble to indicate a bad bearing. I cleaned it all up inside and blew out all dust. Checked the wiring for obvious shorts. Cleaned connections. Everything looked to be in running order to my untrained eyes.
Anything else y'all can think of that I need to do prior to trying it out? Do I have any chance of this 38 year old welder running? Any other tips?
I intend to clean it up more and repaint if it works. Here's a pic.
Thanks in advance for any help you can offer.