|
Keith, a tractor that size ought to start fine at 6 volts if you have a good heavy rated battery and 00 Gauge Battery n Starter n Ground cales, but if you insist on converting to 12 volts, I like the GM 10SI 3 wire Negative ground alternators cuz they are cheap n very available. Or you can go with a One Wire Alternator, they cost more but are easier to wire. Or else just stay with the Generator system by using a 12 volt Generator (or have yours rebuilt to 12) and a 12 volt Voltage Regulator. And a 12 volt battery wired Negative ground, of course. If you go with an alternator rated a lot more then 20 amps (which almost all are) I usually run new 10 gauge wire from the alternator up to the ammeter and from the ammeter to the battery or starter post. If you go that route you gotta: 1) Change over to Negative ground if youre not there already, which invloves swapping the ammeter leads if it has one (so it dont read bass ackwatds) and swapping the coil polarity. If you use a Generator, simply Polarize it cuz they can work at EITHER Pos or Neg ground, just be sure the VR is suitable for your ground, most are. 2) If you wanna use the old 6 volt coil you gotta add a series voltage dropping (12 to 6) Ballast Resistor ahead of the coil after the switch, or else just get a full 12 volt rated coil. The Ballast resistors are around 1.5 to 1.85 ohms and 30 watts or so power rated. 3) Change light bulbs n lights to 12 volts. John T, retired electrical engineer in Indiana
|
