Farmall 400

Farmall H, HV & Super H, 300 & 350, 1939-1958

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Farmall 400

Postby Mikev » Wed May 09, 2018 10:39 am

I have a 400 positive ground one wire alternator. I would like to see if anyone has a drawing of one with a voltage regulator and amp gauge wired in?

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Shane Nelson
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Re: Farmall 400

Postby Shane Nelson » Wed May 09, 2018 11:59 am

Your one wire alternator should have a voltage regulator built into it. Wire from it to the amp gauge, other side of amp gauge to battery. If it shows discharge reverse the wires on the amp gauge.
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Re: Farmall 400

Postby Jim Becker » Wed May 09, 2018 12:19 pm

Are you sure you have a positive ground alternator? They exist but are unusual. Hooking up an alternator backwards can damage it. So be sure before you hook it up!

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