Posted by John T on January 25, 2020 at 08:50:42 from (107.72.178.4):
In Reply to: Battery install posted by Rw726 on January 25, 2020 at 05:49:15:
When I was a used tractor dealer I saw so many get their polarity changed over the years its hard to say what you have now. Since it was originally POS ground and iffffffffffff its still a Generator NOT an Alternator, Id go back with the factory original POS ground.
In the event it has a battery powered coil ignition (instead of a Magneto) it would originally had the + terminal to the distributor and if it were changed it may or may not have been reversed as it should have been.
If its still a Generator to be sure and safe I would POLARIZE the generator BEFORE start up !!!!!!!!!!!!
If it has a working ammeter and it registers bass ackwards reverse its leads
There are a lot of unknowns like 6 or 12 volt and genny or alternator and its ground so this is ONLY a start.
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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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