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Re: old tanker ih460 wiring

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01-16-2013 07:32:42

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Larry, Take your diagram, take a marker and eliminate the wiring that goes to the VR/Genny, ALL OF IT. Add in the wiring as shown for the alternator (2 wires back to the dash) One should be 10-12 ga and the other 14-16 ga. Add in a wire from the IGN switch to the coil. Add in a jumper from the Alt post to the light switch. Everything else should be the same as in the diagram.


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01-16-2013 18:58:43

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 Re: old tanker ih460 wiring in reply to oldtanker, 01-16-2013 07:32:42  
Rick and Jim, Thanks for getting back to me. I was looking at the alt. again today on the tractor and the wires are not running the same way as what you guys recommended. May be why it shorted out, but it was running ok this summer. Out of the 2 small wires on the alt. that plug in with the plastic connector the 1r is going to the ign switch and the 2f is connected to the pos. post on the coil. And the big wire on alt. post, do not know where that one is going yet. Just thinking they may not be wired right. Also there was no jumper wire going from alt. post to 2r. I was trying to draw out a wiring diagram going by what you guys explained along with the diagram I printed out from Carter & . On the amp gage which one is considered the output terminal + or -. I'm trying to get all this figured out before I start tearing it apart. Hope everyone has a good night. I think I'm dreaming about tractors now in my sleep!!!!!!! Larry

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01-17-2013 16:12:15

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 Re: old tanker ih460 wiring in reply to ldb, 01-16-2013 18:58:43  
Clearing up the amp gauge output question.
An amp gauge is measuring the power flowing through it. it is polarized so the current flowing into the battery from the alternator (in this case) moves the needle to the right (charge) direction. When the lights are on, and the tractor is not running, the amps are flowing out of the battery, and the needle moves left, discharge.
There is no standardization on the markings (if any) on the meter. If it was originally positive ground with the amp meter doing as above, the meter leads need to be moved to the opposite terminals to be correct with a negative ground. The battery is connected to the amp meter with a heavy wire from the solenoid connection coming from the battery. This gives the amp meter a connection to the battery non ground terminal.
The other amp gauge terminal is considered the load side (or output side). I am making a diagram and will post it later tonight here and in the parts and pieces. Jim

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01-17-2013 17:34:45

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 Re: old tanker ih460 wiring in reply to Janicholson, 01-17-2013 16:12:15  

Here is the diagram Jim

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01-17-2013 19:07:25

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 Re: old tanker ih460 wiring in reply to Janicholson, 01-17-2013 17:34:45  
Jim, thank you for printing a picture of the wiring diagram. That has help me a 125% +. With the help of you and Rick (old tanker) I can start on rewiring this Old Red ( she is a little bit younger than I am)with a little more confidence. I love reading this site, learn so much. Wouldn't it be something if everyone could attend a "Yesterday Tractors Reunion" somewhere????? Larry

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