The way I tested my SG was that I starter the tractor, then un-hooked both wires on the SG, so if the problem was them shorting somewhere, it wouldn't interfere with testing the SG. I then run a wire from the F terminal on the SG to ground (where the smaller wire goes), then hooked my test light between ground, and the other terminal on the SG (where the heavier wire goes). The test light should light up, if not, the SG is bad. If it does, your problem is probably the regulator, but possibly a bad wire or something.
Trouble shooting a S/G
Does anyone have a page that they can send to me or post it in here on how to do this. The unit was just rebuilt when the engine was done so I am thinging voltage regulator?
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When my 1053 wasn't charging right, it would charge great, then not at all, so I knew if I was getting any voltage my SG was good. My problem ended up being both, the SG was shorting out inside and not giving out any voltage, and the contacts in the regulator needed cleaned and adjusted.
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