Bill Jeffrey wrote:
I have no experience with a generator of this size, so this may not be
relevant.

When my 2500-watt generator suddenly quit, I opened up the end bell and
found that there were a pair of stud-mounted power diodes inside. One
of the diodes had shorted, with the result that there was zero voltage
at the output. I'm not sure of the function of the diodes, but I think
they provided DC (unipolar) excitation to the field coils.

My generator was 120VAC only (no 240VAC). Perhaps yours has lost one
side of the 240VAC excitation, resulting in half voltage somehow.

Just FWIW.

Bill
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James Sweet wrote:

Homer J Simpson wrote:

"Ken Weitzel" wrote in message
news:zZoch.411882$R63.269149@pd7urf1no...


Just playing the devil's advocate for a moment...

Difficult to tell where any of us are in the world, so can't
even guess at where you might be, but those just about 1/2 voltages
might not be a coincidence...

It's not possible that you're in the UK and bought a North American
regulator, is it?



Sounds like a split 240 generator. Perhaps the regulator connections
got switched to the 240 leads instead of the 120 leads?





Wouldn't they only go to the 240 leads? If that output is correct, the
120 should be as well.

Bill says maybe I lost half my excitation. That's exactly what I'm
thinking. Do I need to run the generator to flash the fields? I'm
thinking I disconnect the leads from the volage regulator @ the brushes
so I don't burn it out and take a 12v battery, connect the ground to
the chassis and the positive to one of the brushes for a second and
then do the other brush. If I understand what they are saying on
smokestak. Or maybe someone can walk me through flashing the fields so
both are remagnitized, and I'll run it for an hour to get the magnetism
to stay??