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Faunsdale, AL | I agree with you dondozer...........this thing is most likely an accident waiting to happen.
But, I think Gerald has it right here. I believe the starter, generator and regulator on a 24 volt JD were completely isolated from ground, so no possibility of charging off only 12 volts. That was why they split the electrical loads on the tractor in half so one battery would not overcharge or undercharge.
A Delco 10SI alternator from most any 1980's GM product is easy to come by and fairly easy to adapt to the existing generator mount. There is already a wire that runs to the regulator BAT terminal that will connect to the BAT terminal of the alternator. Install a short jumper from there over to the #2 regulator terminal and then find the wire that comes to the regulator from the GEN light on the dash. It should get "hot" when the key is turned on and light the GEN lamp when you ground it. Connect this one to the #1 regulator terminal.
Or you can use a "1 wire" alternator and only connect the BAT wire. I don't like these much, sometimes they don't excite very reliably unless you make a point to rev up the engine wide open every time you start it up. You also don't have any indication of whether it's charging or not until your battery gets low when it's not.
Either way, enjoy your new trouble free and safe charging system. | |
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24 volt generator / 12 volt batteries question
