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2N 12 volt pseudo-electrical system

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Tyler (MD)

10-31-2000 14:06:12




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I'm posting this for Ken:

Ken writes:

I have a picture of a 12 volt, negative ground wiring scheme for my 2N tractor and the previous owner stated that "to charge the battery", connect the wire with the alligator clip to the wire that the clip is hanging on. The wires are connected to the small panel on the left side of the tractor, No info on how long to leave connected.
The drawing is attached and so is a pic of the small panel with the alligator clip.

third party image

third party image
I would like to convert back to 6 volt and wish to understand how the current system works first. In addition, I have the 6 volt generator that was on the tractor and am planning on checking it out and either overhauling it or buying another.

Thanks in advance.
ken

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Jim WI

11-03-2000 10:48:36




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 Re: 2N 12 volt pseudo-electrical system in reply to Tyler (MD), 10-31-2000 14:06:12  
Claus does a good job of explaining how it works below.

One last note -- as you may have already discovered, leaving that alligator clip connected will cause the tractor to keep running after you turn off the ignition switch.



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Brad

10-31-2000 19:21:49




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 Re: 2N 12 volt pseudo-electrical system in reply to Tyler (MD), 10-31-2000 14:06:12  
If it's a Delco alternator it's self exiteing. I like the one wire setup. Fire up the tractor, warm it up and then run the engine wide open to exite it. I have mine wired like this and it works fine. Exept for the bad brushes...sometimes you have to rap on the alternator with a hammer to get them to seat. :)



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ltf in nc

10-31-2000 19:45:41




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 Re: Re: 2N 12 volt pseudo-electrical system in reply to Brad, 10-31-2000 19:21:49  
The voltage regulator used in the one wire alternators permit the alternator to have feedback from the battery to excite them.



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Brad

11-01-2000 21:16:53




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 Re: Re: Re: 2N 12 volt pseudo-electrical system in reply to ltf in nc, 10-31-2000 19:45:41  
We used to use the one wire regulator on commercial fishing boats when I lived in Florida. When I converted my 8N here in Houston I went on a mission trying to find one. None of the parts houses knew what I was talking about. After I was sold one by an alternator shop I was informed by someone else that the SI-10 Delcos ALL have regulators that work this way. I tried the regulator that came in the alternator and it worked. I still have the "one wire" regulator in my tool box. Now that I have stated this as fact someone will come up with different part #'s to prove me wrong. :)

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ltf in nc

10-31-2000 17:42:06




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 Re: 2N 12 volt pseudo-electrical system in reply to Tyler (MD), 10-31-2000 14:06:12  
Tyler, if you and Ken would like to see a detailed schematic that is easier understood click on the link. This drawing was done by Bob Melville and is the same circuit that the previous owner attempted on the Ford.



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Claus

10-31-2000 15:02:35




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 Re: 2N 12 volt pseudo-electrical system in reply to Tyler (MD), 10-31-2000 14:06:12  
This is an example of "A little knowledge is a dangerous thing" He is using the clip lead to excite the altinators rotating field. This could be accomplished by using either a diode, idiot light or my favorite, a 10 ohm, 10 watt resistor.
This connection only needs to be for a few seconds until the ammeter shows charging. Once the altinator starts, it will self excite through the diode trio internal to the altinator.
Happy Motoring
Claus

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Jim WI

11-03-2000 10:47:15




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 Re: Re: 2N 12 volt pseudo-electrical system in reply to Claus, 10-31-2000 15:02:35  
I'm with you! That's got to be about the most "original" implementation I've seen yet.



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STUMP PULLER

10-31-2000 14:53:06




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 Re: 2N 12 volt pseudo-electrical system in reply to Tyler (MD), 10-31-2000 14:06:12  
YOU JUST HAVE TO CONNECT THE CLIP LEAD MOMENTARILY TO EXCITE THE ALT EACH TIME THE TRACTOR IS STARTED. YOU COULD ELIMINATE THE CLIP LEAD BY INSTALLING A SWITCH. YOU CAN ALSO ELIMINATE THE SWITCH BY PERMANENTLY CONNECTED A BULB IN THE CIRCUIT. YOU CAN ALSO USE A RESISTOR OR A DIODE IN PLACE OF THE BULB. GOOD LUCK



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