You ask...."is this a negative ground or positive ground "
THE ANSWER YES
The starter and charging system are two wire 24 volt ISOLATED from frame ground devices.
The starter has 2 posts, one wires to one battery, the other connects first to the solenoid then (when its closed via the solenoid) to the - of the other battery i.e. 24 volts isolated from ground operates starter.
Approximately half the 12 volt lights are fed from one battery (at + ground) while the others are fed from the other (at - ground)
The mid center tie point where the batteries join in the middle (+ of one to - of other) is tied to frame ground i.e. one battery is Positive grounded 12 volts while the other battery is - grounded 12 volts..
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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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