Posted by pllr on March 29, 2014 at 10:34:37 from (173.86.205.183):
I recently acquired a allis wd-45, converted to 12 volt generator, negative ground, when I first got it last fall, charging system worked fine, now the push/pull light switch gets hot when the battery is hooked up, tractor not running. I take the front wire off of the voltage regulator, all is fine, except it will not charge the battery. when I hook up the battery cable I polarize the battery terminal on regulator and the field terminal with a quick touch with a jumper wire. can anyone tell me the reason 12 volt generators are usually positive ground and why alternators are negative ground? also, think if I reverse my wiring for the ammeter and the coil to set up for positive ground, my problem will go away?
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