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Farmall & IHC Tractors Discussion Forum
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Farmall A voltage regulator

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Andrew Z

11-11-2004 15:39:28




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I got a new regulator and there are three termnials on the side near the engine the old one had only 2 and of that only one was hooked up, the one that came from the generator. What wire goes where???

Thanks for the help!
Andrew




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gene b

11-11-2004 16:56:22




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 Re: Farmall A voltage regulator in reply to Andrew Z, 11-11-2004 15:39:28  
Didnt the new reg come with instructions they usually do. What polority does it say that you must use as they are marked or else on the instruction sheet that comes with it. This is very important.



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Haas

11-11-2004 16:25:02




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 Re: Farmall A voltage regulator in reply to Andrew Z, 11-11-2004 15:39:28  
You likely had a cutout relay before, not a regulator. The cutout relay only has one coil and contact set in it to disconnect the generator from the battery when the generator is not charging(tractor not running) thus preventing the battery from discharging when the tractor is down. You can easily convert to the regulator, but you will not need the high/low charge switch anymore. Just leave it in place, using it for the lights only. On the regulator, "G" or "gen" terminal is connected to the G terminal on the generator. The F or field terminal is connected to the F terminal on the generator. The "B" or "Bat" terminal is connected to the ammeter terminal. The other terminal of the ammeter is connected to the battery. There may be other wires connected to the terminals of the ammeter for lights, etc. Also, most regulators have 4 terminals, three on one side and one on the other. The 4th terminal is usually marked "L" for lights or load. It is no different than the B terminal. It's just a place to connect lights or accessories you may want to run. Nothing needs to be connected to the L terminal. Hope this helps, Bob M or others may want to add to this.

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Bob M

11-11-2004 16:35:11




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 Re: Farmall A voltage regulator in reply to Haas , 11-11-2004 16:25:02  
Right on Haas!

Only one minor correction: The regulator terminal you call G or GEN is usually labeled A or ARM...



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Andrew Z

11-12-2004 06:17:08




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 Re: Farmall A voltage regulator in reply to Bob M, 11-11-2004 16:35:11  
Thanks for the help I try wiring it up to day!!!
Andrew



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