[AT] How do you polarize a voltage regulator??

[Larry D. Goss]

Bingo!  That's the same story my Dad told me back in the 40's.  I
haven't remembered any of the details, but the one thing that stuck with
me was the fact that even though everyone calls it a "voltage regulator"
it really regulates the charging current.  He said, "That's why the
gauge on the instrument panel is an ammeter rather than a voltmeter."

Larry

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of
DAVIESW739 at aol.com
Sent: Wednesday, June 16, 2004 9:26 AM
To: at at lists.antique-tractor.com
Subject: Re: [AT] How do you polarize a voltage regulator??

This is what my manual says on my Case LA, Not  all generators are the
same 
so you really need the manual to check out your  tractor and set it
correctly.  

Generator
The generator is belt  driven, adjustable
third brush type, with charging rate con-
trolled by a  "two-rate" regulator. As adjusted
at the factory, the generator charges  approxi-
mately 11-14 amperes when the battery is
only partly charged, but  when the battery
approaches full charge the two-rate  regulator
automatically reduces the charging rate to
approximately 3  amperes, which is sufficiently
low to prevent over-charging.
Charging rate  is adjusted by shifting the
position of the "third" brush, which is  reached
by removing the cover band on the rear end
of the generator; the  movable third brush is
on top, somewhat toward the engine. Moving
the  third brush in the same direction as the
rotation of the generator armature  increases
the charging rate. Baffle plate shown in Fig.
21 is used to  prevent generator from being
heated by exhaust manifold.
NOTE: No Warranty  Service Work will be
approved should it be done on Electrical
Equipment by  any one other than an author-
ized Electrical Equipment Service Station,  as
they have all the necessary tools and equip-
ment to do this work in a  satisfactory manner
and are familiar with handling  Electrical
Equipment.

Walt Davies
Cooper Hollow Farm
Monmouth,  OR 97361
503 623-0460  

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