If your tractor is set up as it left the factory, and you have a battery discharge issue, typically the RH battery will get " drained" by the generator or starter having conductive brush dust/debris/moisture in it.
A few of us crusty old DEERE GURUS understand and appreciate the General Motors/DEERE 24 Volt system that was used, for the rest of you it can be a $$$ heartache unless you take the time to read up on it and understand it or have a knowledgeable "tractor buddy" to help.
To summarize:
1. A 24 Volt 4020 diesel is probably NOT the best choice for a tractor novice.
2. It's a darned good system when maintained properly, but a nightmare if not and exposed to a "wrench" that doesn't understand it.
3. Many have been converted to a 12 Volt system (and I can forward a diagram as to how to do that, if you'd like) but the danged OEM 24 Volt system sure does crank the snot out of the engine when in good condition.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [Read Article]
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