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Allis Chalmers Discussion Forum
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Re: WD charging system

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Author  [Modern View]

08-24-2012 05:51:18

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the generator has two terminslas "A" and "F". The "A" is the armature and goes to the battery by way of the ampmeter. If your keeping the positive ground system, the A goes to the ampmeter and other side of amp goes to the negative battery terminal.... POssitive battery terminal is grounded to the frame... BAck to the generator, the "F" is the field and is actually the ground terminal. IF you jumper it to ground the generator should charge constantly at full capacity, normally 20 amps... the "F" wire really goes to the light switch which has a resistor on the side. During the day light, the "F" is grounded thru the resistor and the voltage drop causes the generator to charge at 2-3 amps. During night hours when teh light switch is on and lights on, you need more charge so the F wire bypasses the resistor and goes directly to ground and you get the max charge, or 20 amps. You can test by bypassing the switch and going directly to ground with the "F".. IF it works, you can eliminate the switch and just add a big resistor that you buy at RAdio Shack and ground it to the F and the generator area.

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08-24-2012 05:53:41

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 Re: WD charging system in reply to steve(ill), 08-24-2012 05:51:18  
generator with cutout

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