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Farmall & IHC Tractors Discussion Forum
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Electrical Theory

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John T

11-24-2003 12:06:23




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I have a '52 M on which I replaced the engine yesterday with a '40 engine serial # 19000 (about) that probably came off an I-6 (painted orange). It runs like a top. Need to understand the electrical theory involved in the generator/voltage regulator system. I have used both magnetor and distributor ignition on my tractors and change them out easily (only one wire needs to be changed in most cases). My problem is tracing the source of a problem in the charging system. How does one trouble shoot the system to identify a faulty component? Is the voltage regulator bad?; or, is the generator putting out a normal voltage? My wiring is done to the actual drawings copied out of a parts dealer's original catalog (as best as I can determine. Any help will be appreciated.
Thanks
John :)

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Greasy John

11-24-2003 17:04:06




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 Re: Electrical Theory in reply to John T, 11-24-2003 12:06:23  
Hello John T--The way I check a Generator for out put is --unhook the Arm and feild wires at the gen .Hook a known good headlight beam of the correct voltage to the Arm. Term. and ground next connect a jumper wire momemtarily to the feild term and the + battery terminal . The light shud light to full brilliance. Regulators are best left to some one other than Myself OK??? John

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Ludwig

11-25-2003 12:47:47




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 Re: Re: Electrical Theory in reply to Greasy John, 11-24-2003 17:04:06  
Better than me. I just replace the regulator. That don't fix it I replace the generator. That don't fix it I replace the wires and then replace the regulator again. Thats always fixed it so far.



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SA

11-24-2003 13:06:08




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 Re: Electrical Theory in reply to John T, 11-24-2003 12:06:23  
I submit to the smoke theory on electrical stuff. As long as the smoke is still in the electrical equipment it will work, but once you let the smoke out it will no longer run.



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Bob M - yes!

11-24-2003 16:19:16




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 Re: Re: Electrical Theory in reply to SA, 11-24-2003 13:06:08  
You got THAT right!



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Bob M

11-24-2003 12:22:55




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 Re: Electrical Theory in reply to John T, 11-24-2003 12:06:23  
John - Punch below for a generator/regulator troubleshooting flow chart that might be helpful...



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