I have a Lincoln 175 SP+. It welds for a second, then cuts off. Sometimes it welds fine. Other times, it's off/on for a second and that's it. A while back, I took the cheesy plastic gun apart, and it worked fine for a while after that. I called the supplier here today, and he said he could send it to Vegas. I took the gun apart again, and bent the little contact points up a bit in case they weren't making contact. What a set of contact points! A very small washer on a plastic plunger. The geek told me to make a shunt between the spade terminal contacts and see if the motor ran continuously. I did not have a chance to do that today as I did some other welding with my SA200 on some awning supports. Anyone have this problem, and what did it turn out to be?
Steve