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#1
03-12-2013, 06:55 PM
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Calling all charging system gurus!!!!
I've got a quick couple of questions for you.
I'm working on my Original's charging system. It's VERY basic, with only about 5-6 wires!  I bought the tractor a couple of weeks ago so I have no background on the tractor at all. I started checking the system and the S/G would start the engine, but it wouldn't charge. I suspected the wiring was at least part of the problem. I was right. I checked the system per R. Bedell's excellent schematic and some of the wires were not hooked up. Now, with everything where it should be, the S/G is constantly charging at 16.5v-17v when I rev the engine up. The Field terminal on the regulator is constantly grounded. I'm thinking that the regulator ISN'T regulating. I know that there are contacts inside the regulator and I'm wondering if maybe one of the contacts is stuck closed, thereby constantly grounding the field terminal? It is grounded right at the regulator. I have another regulator from another tractor, but the soft-metal wire (wraps around two poles inside the regulator and acts like a fuse, I believe) is burned. If this soft metal wire (fuse) is replaceable, I would swap out the regulators and see if that helps. If it's not, I'll have to get another one, or figure out how to fix the one currently on the tractor. If I remember correctly, there is also a way to adjust those regulators. Anyone know? I put in a new battery and I'd hate to smoke it due to over-charging. Any insights would be greatly appreciated. Thanks! 
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