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06-01-2008, 17:02

What would cause my generator (12.5kw Yanmar powered Kohler) to eat
through brushes at a rapid rate?

Some time after buying my coach last year, the generator quit working.
I found the rear brush to be worn all the way down and the wire popped
off. The front brush looked OK, but I replaced them both anyway, as
well as the little holder for them just for kicks. Fast forward to
this weekend: With only ~30 hours of operation on the new brushes, the
generator stopped and I found the rear brush worn down with it's wire
popped off again. Front brush still looks new. Thankfully, I still had
the good front brush from before, so I installed it in place of the
worn rear brush. This was Saturday morning.

Roughly 5 additional hours of runtime later, the generator stopped
again. That was this morning and I haven't climbed under there yet but
I suspect I'll find that rear brush worn back down.

What's the deal here?

-Ryan
'86 PT-40 8V92