HELP! I think i killed it. AEAD-200LE

[davedriveschevys]

I borrowed a friends legend aead 200 le to do some repairs on an excavator bucket. While running some rather large hard facing rods the arc became very weak, and started stuttering.
So I switched to an 1/8 rod same result.
And I could have sworn I heard something snap when it went out, but hard to tell under the helmet.
I was definitely leaning too hard on the welder when this happened,
I need to get this fixed.Where to look first?

Serial # JJ479736

[Rezeppa]

Find a new friend. Sorry I am not welder repair savvy. Does it idle up and down at all?

[cruizer]

Well, it sounds like one or more of your diodes in the rectifier pack is pooched

[davedriveschevys]

Well, it sounds like one or more of your diodes in the rectifier pack is pooched

Thanks cruizer, Ill hunt them down and check them out. Not sure of testing procedure though. I have a hand held multi-meter not sure that would test a diode.

[skidder13]

That multimeter will work as long as you can check ohms. U will only get continuity one way through it.

[davedriveschevys]

Cruizer, is this the rectifier? It is pooched.
0122130817.jpg
0122130817a.jpg
Is this SR1 on the schematic for this machine?

*UPDATE*
I have located and ordered a new rectifier, that being said I am wondering what caused this?
I did clean the rings and inspect the brushes, two were stuck in the holders.
0122131026.jpg
0122130817b.jpg

[cruizer]

Age and use causes it, likely 1 or more puck dides were trashed, then one by one the rest are over loaded.