No series parallel switch on original. The generator and starter were 24 volt. There was effectively to separate 12 volt Systems for the lights and fuel gauge. one battery was connected positive to chassis and the other one was connected negative to chassis. Someone has converted the tractor in question so they could use a 12 volt negative ground alternator and retain the 24 volt starter. I installed a power block in a 46 JD A with a 6 volt system and had to use two 6 volt batteries with a series parallel switch to start it. That 6 volt generator was hard pressed to charge the batteries. After converting to a 12 volt generator and a single 12 volt battery things worked better.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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