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Brush gobbler
06-02-2008, 00:19
Post: #4
Brush gobbler
MANY years ago I worked with large A/C.D/C motor generator set. We used to turn
the commutator with special tooling while in place. Maybe some one who rebuilds
commercial/industrial motors can lead you in the right direction. These units
are almost timeless...

Pete


-------------- Original message ----------------------
From: "Scott Forman" <sforman@...>
> Your commutator ring is worn. I went through this in January. You
> have three options:
>
> 1) Replace entire genset
> 2) Find a modern head unit that mates up to your engine
> 3) Rebuild the head unit
>
> I went for option three, as it had the lowest price and fewest
> potential headaches. Now it is basically a brand new "old
> technology" generator which should last another 20 years just like
> the first one did.
>
> The commutator ring must be pressed out, so machine tools are
> required.
>
> Good luck
>
> Scott Forman
> 86 PT38
> Memphis
>
>
>
>
>
> --- 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
> >
>
>
>




Your commutator ring is worn. I went through this in January. You

have three options:



1) Replace entire genset

2) Find a modern head unit that mates up to your engine

3) Rebuild the head unit



I went for option three, as it had the lowest price and fewest

potential headaches. Now it is basically a brand new "old

technology" generator which should last another 20 years just like

the first one did.



The commutator ring must be pressed out, so machine tools are

required.



Good luck



Scott Forman

86 PT38

Memphis



--- In "WanderlodgeForum%40yahoogroups.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

>



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Messages In This Thread
Brush gobbler - Ryan Wright - 06-01-2008, 17:02
Brush gobbler - thomas_sorrentino - 06-01-2008, 21:58
Brush gobbler - Scott Forman - 06-02-2008, 00:01
Brush gobbler - PM7088@... - 06-02-2008 00:19
Brush gobbler - Gregory OConnor - 06-02-2008, 00:23
Brush gobbler - Ryan Wright - 06-02-2008, 10:23
Brush gobbler - Scott Forman - 06-02-2008, 11:56
Brush gobbler - Gardner Yeaw - 06-02-2008, 13:06
Brush gobbler - Ryan Wright - 06-02-2008, 17:19
Brush gobbler - Gregory OConnor - 06-02-2008, 17:44
Brush gobbler - thomas_sorrentino - 06-02-2008, 21:20
Brush gobbler - Scott Forman - 06-02-2008, 23:50
Brush gobbler - Ryan Wright - 06-04-2008, 10:00
Brush gobbler - robert nloomas - 06-04-2008, 10:59
Brush gobbler - thomas_sorrentino - 06-04-2008, 13:36
Brush gobbler - Ryan Wright - 06-06-2008, 08:51
Brush gobbler - thomas_sorrentino - 06-13-2008, 15:10
Brush gobbler - Ryan Wright - 06-14-2008, 09:30
Brush gobbler - Ryan Wright - 06-14-2008, 18:23
Brush gobbler - thomas_sorrentino - 06-14-2008, 22:56
Brush gobbler - Ryan Wright - 06-15-2008, 16:25
Brush gobbler - Ryan Wright - 06-15-2008, 16:28
Brush gobbler - thomas_sorrentino - 06-16-2008, 01:12
Brush gobbler - Ryan Wright - 06-16-2008, 06:31
Brush gobbler - Ryan Wright - 06-19-2008, 19:18



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