I was searching the archives and ran across a post made by Dell and had a question about it. Here is the snippet I had questions about.----- ----- ----- ----- ----- ----- -
There are two other connections, P1 which needs a
switched 12 volt source to keep the alternator from feeding back into the ignition coil so you can turn the engine off. That is what the dash light/marker light does. It also acts as an "idiot light" just like in your car when the light lights up, the alternator is not charging/engine not running. Some times the convertor uses a diode (which is a 1-way switch) to disconnect the alternator from the ignition coil. Same effect, same reason. I personally like using an idiot light scheme because unless you are an electonics engineer, its hard to determine which way to connect the diode to make it work correctly. P2 is called the battery "sense" line that electrically tells the voltage regulator what the battery voltage is, kind of neat if your battery is in the trunk of your tractor and you have a voltage loss from the long wires, but in this case the simplest thing, since the battery is so close, is to directly connect the "sense" to the alternator output (which goes to the battery anyway) There is an optional voltage regulator that can be installed inside the alternator that does away with the need for any other external wiring to P1 and P2....BUT....you have to jazz your engine to high RPM's to get the alternator to start charging. Thats ok for automobile engines that rev to 5000+ RPM, but your N-Tractor engine is redlined at 2200 RPM and idles at 400 RPM. I really don't like to jazz my engine that much, and altho just 1 wire seem like a neat way to go, it is not my favorite or recommended way to convert. But you can if you want to.
----- ----- ----- ----- - I only have one wire coming from the alternator. I would assume that my alternator has the built-in voltage regulator that he mentioned. My question is can/should I still wire the P1 and P2 connectors like he said above or will it fry something? I don't like the idea of revving the engine and lately my battery has been dying so I don't think the alternator is putting out. I've owned this tractor for a few years now and it seems like I have to charge the battery at least once a year if not more. Just yesterday I was discing with it and shut it down only to find out when I went to cramk it 30 min later the batter just gave out. I gave it a quick 10 min charge and it fired right up. It's on the charger now getting a good full charge. I did rev the engine before I started, hoping it would help the battery to charge. Link to forum post where the quote was taken from:
http://www.ytmag.com/cgi-bin/viewit.cgi?bd=nboard&th=66594
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