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Allis Chalmers Discussion Forum

Converting 6 Volt Generator to 12 volt?

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12-06-2003 05:55:10

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I have an Allis Chalmers Model G 6 volt generator that I would like to convert to 12 volts so as to keep original appearance. No lights on tractor..all generator would have to do is charge a battery. Can this be done without ruining the generator? Thanks, AWB

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12-06-2003 11:16:13

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 Re: Converting 6 Volt Generator to 12 volt? in reply to AWB, 12-06-2003 05:55:10  
take the A and F wires off the generator. Ground the F to the frame. start the tractor and measure the voltage across A and F with a volt meter. 6 volt unit should put out 12-15 volts non regulated. If you are getting more than 12 volts, then buy a voltage regulator and connect it up. Remember, you still wont get more than 5-8 amps, but should be o.k. to charge battery. I did it.

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Doug in OR

12-06-2003 13:32:59

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 Re: Re: Converting 6 Volt Generator to 12 volt? in reply to steve, 12-06-2003 11:16:13  
Almost correct. Contrary to what many think, a 12 volt battery needs 14 volts to charge properly. Just as a 6 volt battery needs 7 volts. Do what Steve says - you'll probably get a reading of near 15 volts, abeit at a low amperage. If you have 14 to 15 volts, just leave good enough alone. Hook this to the battery, through a cutoff. With no lights and such, it should work for you.

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