Posted by Janicholson on February 05, 2009 at 18:39:32 from (68.112.156.69):
In Reply to: Super A - Generator posted by Brian Luton on February 05, 2009 at 17:57:27:
I believe there is every reason to get the generator operating well. The Super A has a regulator based system of controling the generator output. Do the following: (you will need a foot long piece of copper wire, and a volt meter) Start the tractor. When it has run for a minute or a bit more, run the throttle to 1/2 speed or a bit more. With someone watching the amp gauge, touch the wire to ground(bright shiny place on the frame, no paint)and touch the other end to the F terminal on the generator. (no harm will come to the person doing this) when it is grounded, the amp meter should swing to the right (about 10 to 14 amps charge. If it does, replace the regulator. If it does not, do this. Shut off the tractor and touch the same piece of wire to the Arm or A terminal of the generator, and the other end to the Bat terminal. this will polarize the generator. If it sparks a nice bright spark, good. If no spark, the generator, may be in need of brushes/rebuild. If no spark, check voltage on that terminal (bat) to see if it is connected. If not, check the wire's connection to the amp gauge.. John T has provided a great check list (in the search for box, put John T charging system diagnosis) Go from there. JimN
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Today's Featured Article - Two-Brush Generators - by Chris Pratt. Whether for product liability or because the aftermarket parts and labor business is lucrative, this concept is disturbingly prevalent. Fortunately when you step into your shop and make that jump 50 years back in time to work with your old tractor, this concept goes out the window. Even so, when it comes to the charging system, people quickly revert to this idea and start replacing the major components one at a time until it works. The reason you don't find any decals in your replacement set wit
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