Posted by dbanjo0335 on October 06, 2008 at 07:04:54 from (98.105.4.97):
I recently received a Farmall A from my Grandfather"s estate. It has previously been switched to 12 volt and has worked just fine in recent years. However, when I came to own this tractor, I found that I had to jump start it each time I wish to use it. I had the alternator tested and it works just fine.
Not knowing what else to do, I found an article about converting from 6 to 12 volt here on ytmag.com. Here"s the link:
http://www.ytmag.com/articles/artint195.htm
I figured that I could follow the instructions and included wiring diagram and rewire the whole charging system - which I did. When I finished, I went back over everything twice to make sure I had done everything correctly.
But, when I hooked the jumper cables up, the wires coming from the switch began to smoke heavily. Before I could remove the cables, the wires from the switch had melted between the switch and the ammeter as well as between the switch and the warning light/ignition coil.
I have gone back over everything I did and I am confused. How can I correct this problem?
Also, my tractor has the ammeter in a box just forward of the shifter. Below the ammeter in this box is a knob. I assume this knob controls the lights, etc.??
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