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Re: farmall 100 charging
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Posted by John T on June 01, 2007 at 16:19:06 from (66.244.83.147):
In Reply to: farmall 100 charging posted by jeeper on June 01, 2007 at 16:07:23:
If you change ground polarity then YES you should swap coil leads. BOTTOM LINE IS the coil polarity needs to match your battery polarity i.e. if Pos ground its the coils + terminal to the distributor (- gets voltage from switch) while if its Neg ground then the coils lil - terminal wires to the distributor. When you change from 6 to 12 volts you can EITHER use the old 6 volt coil but add an external series voltage dropping (12 to 6) Ballast Resisistor after the switch and before the coil OR ELSE use a true full 12 volt rated coil no ballast required. A generator can still work at EITHER Pos or Neg ground regardless if 6 or 12 volt, you just have to polarize it correctly and the coil (per above) and ammeter leads need to be wired correct or it will read bass ackwards. Dont forget to change any lights to 12 volts. John T
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