Generator polarizing

slnichols · Aug 10, 2015

I have a 51 Case DC with a magneto, 6 volt. The battery cables are pretty rough. If I disconnect the battery to change them will I have to polarize them? Also, the ammeter doesn't work yet the battery is charging-- 8.5 volts on my volt meter. If I change the ammeter will I have to repolerize? Thanks.

Janicholson · Aug 10, 2015

No to both concepts, the gen keeps its magnetic field easily for years. Jim

slnichols · Aug 11, 2015

Thanks Jim. I appreciate the help

Joe Mindy · Aug 11, 2015

8.6 volts seem too high and will likely boil the battery dry. I would sooner see about 7.2 volts.

slnichols · Aug 11, 2015

Thanks for the advice. I'll check it again. I have a maintenance manual that tells me the charging power of the gen can be adjusted using the 'third brush'. Moving it in the direction of rotation increase charge. Logically moving it the opposite direction should decrease charging.

Owen Aaland · Aug 11, 2015

(quoted from post at 23:05:11 08/10/15) No to both concepts, the gen keeps its magnetic field easily for years. Jim

I just started a Farmall H that had not run for about 30 years. Evidently that is past the amount of time for the pole shoes to remain magnetized. As soon as I polarized the generator it started charging.

Still have to clean out the main fuel tank. did you know that in 30 years you can evaporate off an almost a fuel tank of fuel?

Generator polarizing

slnichols

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Janicholson

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Joe Mindy

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slnichols

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Owen Aaland

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