Posted by ScottyHOMEy on October 30, 2007 at 18:09:25 from (71.241.212.142):
In Reply to: B-charging system posted by jakey756 on October 30, 2007 at 17:16:18:
In the end you may find your battery is bad, but the wiring needs checking out first and, yes, you need to polarize the generator.
From your description, I'm guessing you have the saddle-mount relay on top of your generator. There should be two studs sticking out of one side (usually the side nearer the engine) and one on the other.
The one on the side by itself is your "BAT" terminal. The one directly across from it is the "GEN" terminal These are the two that need to be briefly connected to polarize your generator. But it's easier than that. The GEN terminal is wired directly to the armature stud on the generator (usually further away from the engine and you might be able to find an A --sometikes looks like a V -- stamped in the generator case next to it). As long as the wire from the armature stud to the GEN terminal on the relay is good, you can polarize it by just touching a jumper from the armature stud to the BAT termial. Much easier than fishing around trying to hit the GEN terminal on the backside. Should make a little spark at most.
The tractor doesn't have to be running, but I usually do run it when I do this, just to compare what my ammeter is doing befoe and after.
You do have to have a charge on the battery for it to work, though.
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