Posted by Janicholson on July 11, 2009 at 07:09:29 from (64.61.211.252):
In Reply to: A 10SI I Think... posted by Crazy Red Power in SE-WI on July 10, 2009 at 17:21:01:
The Alt is in the number category of 10SI alternators. I think the fault may be that the alternator was purchased originally as a one wire setup. These have a regulator designed (kindof) that only uses the BAT wire to the battery to make it work. There is no way to check this unless there is a part number on the regulator inside the alternator. A good electrical service shop will know. If it is, and it is good, it will charge with nothing but the big terminal connected. If it is (and the regulator is toast -probable-) it will not work. It needs to be taken in. It is quite likely that it is easy to fix with a standard 3 wire regulator (cheap). Unless it has been hooked up backwards (positive ground) it still has 90% of its value. Regulators are in the 20$ range.
The real issue with your electrical system is the wiring from the cable attachment from the battery. (Battery post at the starter relay) to the amp meter (a 10ga wire) and from the amp gauge to the key, and from the key to the ballast resistor. Trace that power.
The alternator (when checked and made into a three wire) will then work with the diode.
This is complex, and will be all OK in the end. And you will know a massive amount about the tractors electrical system. It is in the end game. Seems like the last 2 minutes go on for 8 commercials. JimN
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