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Scott:
Mark Langford's example shows what most folks are
doing for a schematic for the John Deere dynamo. It can be seen on his page
here:
and here are the specifics on the dynamo set
up
The Kubota unit has the same output as
the JD though it is slightly different in size, and is made by the same folks
Kokusan Denki in Japan.
As for running dual units I have not crossed that
hurdle yet but I know folks have done it so there has to be a reasonable way to
make it happen. As I understand the permanent magnet uses a heat sink to
dump unused power. I obtained these heat sink regulators from the same
source on ebay that sold me the dynamos. They are removed form brand new
tractors when the customer orders more lights and the units are replaced with a
higher output conventional alternator.
Michael
----- Original Message -----
Sent: Sunday, April 27, 2008 4:56
PM
Subject: [FlyRotary] Re: the Kubota
dynamo
So that's cool.
What about the regulator and
wiring diagram?
I got a John Deere PM alternator (that looks similar to
yours) and regulator from different ebayers. I would like to use it as a
backup source instead of two batteries.
Figuring out the regulator wiring
is slowing me down while I go thru the first engine runs etc. maybe I won't
use it.
I always thought a Harley style PM alternator could be fit between
the engine and the reduction gear? The amp rating should be equal to the
esential loads, because extra generator capacity is 'spilled' by the regulator
as wasted energy. The 'main' alternator can turn off it's field current if no
additional power is required.
Scott
E
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