I apparently hit the duty cycle on my Miller 175 MIG today, running .035
and CO2. The yellow light came on, and it quit welding. I just let it
run on fan for about fifteen minutes. The light went off about ten
minutes into it.
Is there any harm in this? Should I cycle it less in the future? I was
just so into it, getting my trailer done that I went nutso.
It just means the overload protection thermostat works.
This is a good thing, but try not to make a habit of it.
Overheating takes a toll on internal parts like electrical insulation
on the transformer coils.
I did some more yesterday, and paid attention to running for about ten
minutes at a time. One time, I got carried away, and ran longer, and
looked at the yellow indicator, and it was OK, but I stopped, and just
let it idle on fan for about ten minutes. I was running it at about the
top of the range.
When I do .065". I don't think I even come close to maxxing it out.
Yesterday, also, I jumped back and forth to the M225 little AC welder I
got. I really like that machine, although I find AC a little harder to
get started. And then if you crank it up, you are usually a little
high. But once you get it set, and remember the settings, it runs nice.
Nice looking bead, too.
I want to get some 7014 just because, and even some 6013, although I
have not run much of that at all in my life. I hate to go buy rod
anymore, it's so expensive. And it jumps from 10# to 50# containers. I
used to have a place that would sell it loose by the pound no matter how
little you wanted, but not anywhere around here now.