Posted by oliver778 on August 29, 2017 at 05:12:45 from (156.101.1.6):
i am working on a jd 4100 compact that is over chargin. started out originally not charging so replaced the alternator and regulator and was fine for about a week then after a couple hours of mowing the tractor was shut off and would not restart just clicked found the battery was shot only showing 4 volts so replaced the battery. that is when it started over charging. 15.4 volts wide open 13.8 at and idle. replaced voltage regulator again still over charging found the a1 control module was burned in a couple spots so replaced that also. glow plugs are working as they should. thought maybe the fuel shut off solenoid maybe drawing causing it to keep charging but i have my doubts about that. ive run out of directions to go so any thoughts or help would be appreciated thanks
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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
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