Brush gobbler

[Gardner Yeaw]

All I would ask is that if anyone does this repair, take lots of
pictures. It sounds like a pretty common problem and nothing is more
helpful that pictures along with an explanation. I don't have one of
these gen sets (yet), but Ihave friends that do.

Gardner
78FC33
--- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor"
wrote:
>
> I think the shaft is tapered to the engine?? so it then could be
the
> bearing in the gen or the mounting bolts that hold the gen to the
> engine?? MikeH pointed out some time ago that it is important to
> replace critical bolts to get them back to spec torque.
>
> I have a coleman light tower that had a crack in the casting that
> holds the genset bearing. once I welded the crack I then started
to
> run thru brushes . I guess I off centered the bearing seat. when I
> pulled the genhead off the Kubota I noticed a broken motor mount
on
> the engine side which must have cantilivered stress on the duo and
> caused the crack. Servicing mounting points may also help with
> vibration. vibration is more annoying than noise.
>
> On the topic of mounting and vibration; BB has some funky exhaust
> mating systems for genset slides. I notice most vibration come
into
> the coach from the muffler mounting.
>
> GregoryO'Connor
> 94ptRomolandCa
>
> --- In WanderlodgeForum@yahoogroups.com, "Ryan Wright"
> wrote:
> >
> > 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
> >
>