well its pretty simple really...... cant weld=cant work
if i had just bought a "completely rebuilt" welder WITH a warranty and the governor seal started leaking i would definetly be asking some questions as well as taking a VERY close look at the rest of it.
asking the welder to be a troubleshooter is out of line, there is alot of guys that could but how do you know ?
If I bought a completely rebuilt welder with all new parts, etc and a warranty and it started to leak out one of the seals, as a mechanic for 18 years I'd be wondering. But on the other hand I would also be thinking must be some chinese made p.o.s seal perhaps in which case I'd call and say, hey, can you send me a new seal? To call and cuss like a sailor though won't get anything resolved, 32 year old machine even with a complete overhaul does not mean 100% dead to rights reliable, you can't get that with a 2011 automobile.
Got a prime example, a buddy dropped a valve on his 05 dodge, told him to take it to a good friend of mine about 1.5 hours from him to get it repaired. Told him I know the guy does good work and don't half azz schmidt. He took it to a guy close to him, who he knew nothing about. This guy in turn gave it to one of his hourly cronies.....who give's even less of a schimdt about my buddies truck. When he gets it back, his boost gauge don't work, fuel pressure gauge don't work and it rattles like an old 12 valve. Well, his boost bolt is gone, his fuel pressure lead is not connected and the valves need to be readjusted not to mention it'll only build 30psi of boost and the guy he bought the turbo from says it should hit 40 psi easily. "You need to find the leak in your exhaust or intake that is killing your boost" the guy tells him. Guess what? I get a call yesterday, when can you drive 1.5 hours to my house and find this leak on my truck? Not what I really want to do, find somebody else's f'k up, but I will. In this situation I'd be pretty ticked.
I change the oil on anything I buy used, filter, oil, plugs, wires, air filter at least I know the last time it has been done then. Probably a bad seal, it happens, send me a new one and I'll deal with it, not a life changing event by any means. What's an alternator???? Are you serious?? Get out in the bush some place and it won't start because it's got water in the filter and it's 15 degrees outside, you gonna call a roadside welder mechanic because you have no clue?? On the alternator though was it tested at the shop and sent out or was it a rebuilt alternator? That's something I'd be asking, if either one, yeah those fail too. Replaced one on my saturn years ago, two days later it took a dump. Ended up getting it warrantied, hated to change it again.....two days after installing the new one but it was not the parts house that did it.
If this guy has no mechanical ability whatsoever than he has no clue on what can happen and does happen on a regular basis in the new/used parts, machine/vehicle world and I'd not loose a wink of sleep. Ignorance......another word for stupid. I'll pray the year warranty is up soon so you'll no longer have to hear from the guy!