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Re: 4010 electrical system
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Posted by Bob on January 15, 2007 at 07:05:11 from (69.178.229.154):
In Reply to: Re: 4010 electrical system posted by KYfarm on January 15, 2007 at 06:41:31:
All that is needed to make it work is to get a wiring diagram, take a little time to understand it, and then put everything back to "as-original", and make any needed repairs. 90% of the problems with these systems are "owner-induced" by monkeying around with them without ANY understanding of how they work. I'll bet over half I've ever seen had the battery locations/polarity changed by "blems" changing batteries over the years, without paying ANY attention as to which way the old ones were connected up. That's where the trouble often STARTS. Add 40 years of minumum maintenance, and it's easy to see why a little "tune up" is in order. It takes a GOOD 12-Volt starter and batteries to spin a COLD engine as well as a mediocre 24-Volt system does on these old machines, although I understand folks are having better luck with going to GEAR REDUCTION 12-Volt starters that have become available in these later years. I have a 4020 that is seldom used, and it is still 24-Volts. Sometimes, it may sit without being started for 6 months, or more. A couple of years ago, I put 2 "float chargers" on it, one on each battery, and I plug them in if the tractor is going to be unused for a while. They don't use any more electricity than an electric clock, and extend battery life by YEARS.
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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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