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Tractor Talk Discussion Forum

3-brush generator blues

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mike

02-15-2004 14:28:32




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I'm rebuilding a '43 VA but don't know where to run the field wire to. Anybody know?




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Alberta Mike

02-15-2004 19:27:17




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 Re: 3-brush generator blues in reply to mike, 02-15-2004 14:28:32  
Mike, does your tractor have a 3-position light/generator control switch on the dash? Gene was right, the field circuit from a 3rd brush generator goes to ground either through a 3-ohm resistor (position 1, controlled charge) or directly to ground (position 2, full charge or position 3, full charge with the fused light circuit on). The 3rd brush generators can also be adjusted for basic output at the generator itself by moving the location of the 3rd (middle) brush. Email me at my name link here, I have removed the hide feature.

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Mike

02-16-2004 09:52:20




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 Re: Re: 3-brush generator blues in reply to Alberta Mike, 02-15-2004 19:27:17  
I do have a 3-position swith-I'll give her a whirl. Thanks.



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Gene Davis (Ga.)

02-15-2004 19:07:11




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 Re: 3-brush generator blues in reply to mike, 02-15-2004 14:28:32  
The field wire will be hooked to what ever controls your rate of charge. That can be either a regulator, or a variable resistor such as a 3 position light switch that has a high/low resistor. The regulator just does an automatic job of switching between high and low charge rates. Gene Davis



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Mike M

02-15-2004 15:44:17




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 Re: 3-brush generator blues in reply to mike, 02-15-2004 14:28:32  
If you have a cut out I think it goes to the light switch which controls the lights and the high and low charge through a resister to control the ground. JD and IHC do this I think don't know for sure on a VA. It does take a special switch.



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49 Cubber!

02-15-2004 14:38:13




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 Re: 3-brush generator blues in reply to mike, 02-15-2004 14:28:32  
F on generator to F on regulator,at least thats what I do on my Farmall.



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mike

02-15-2004 14:46:09




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 Re: Re: 3-brush generator blues in reply to 49 Cubber!, 02-15-2004 14:38:13  
I don't have a regulator, just a cut-out. I think you have a different system.



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