vr and 3 position switch for h

Anonymous-0 · Nov 17, 2008

i bought a old 3 position switch, what kind of voltage reg and where to get one? i dont know much about this.. also is the old box (already forgot what its called, mounted on the generator) worth anything, or just toss it? thanks again!

Andy Motteberg · Nov 17, 2008

Don't throw it away, I'm sure someone could use it. a 3 Position switch ( Off - Dim - Bright) are used on the later models with a Voltage regulator, the 4 position switch (Low Charge - High Charge - Dim Lights - Bright Lights) is used on tractors with a cut-out on the generator. Is it NOS in a IH box??

Janicholson · Nov 17, 2008

NAPA, this site, And many other sources can provide a positive ground B circuit regulator with three or 4 terminals. (the L terminal can be used to power the light/accessory demands, but is not much different than hooking directly to the Load side of the amp meter) The three terminal regulator has a Bat terminal (to the load side of amp gauge with #10 wire, An ARM or GEN terminal which goes to the Arm terminal on the generator (big terminal), and a Field or F terminal which attaches to the F terminal on the Gen (small terminal) Be sure the new VR has a good ground to the tractor, and that the Gen does as well. If you are using a 3 brush generator, it should have the third brush adjusted as far as it will go toward the fixed brush. JimN

Anonymous-0 · Nov 17, 2008

The Farmall charging system is A circuit positive ground.

Anonymous-0 · Nov 18, 2008

THANKYOU, no its old and mounted on gen

GordoSD · Nov 18, 2008

TSC has them.

Gordo

John T · Nov 18, 2008

Yo Jim, far as I know it was only Fords that used a B charging system, while most all others including Deere n IHC n Oliver n AC n MM used the A. As I know youre well aware the A system controls the charge rate by regulating the gennys field ground resistance while the B system does it on the voltage input to the Field and the Fields are already grounded on their output. To make an A system full charge you would dead ground the gennys FLD post but to full charge a B system you would apply full voltage to the gennys F terminal.........

If youre like me I get things like A or B or B or A mixed up but I learned this years ago when I tried to use a Ford VR on an IHC or Deere (I forget) and after I let the smoke out I taked to an old timer at the genny shop who yelled at me YOU CANT USE A FORD VR EXCEPT N FOR FORDS LOL

I have no idea which Fords used the B system, we would have to venture over to the Ford boards to learn that

Yall take care n keep warm now

John T

Janicholson · Nov 18, 2008

Mental lapse on my part late at night! A is correct!!!! Jim

John T · Nov 18, 2008

Hey as I grow older I find thats getting to be more the rule then the exception lol grrrrrrrr

JT

vr and 3 position switch for h

Anonymous-0

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Andy Motteberg

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Janicholson

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Anonymous-0

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Anonymous-0

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GordoSD

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John T

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Janicholson

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John T

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