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Farmall & IHC Tractors Discussion Forum
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Alternator wiring IH 884

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cool hand

10-12-2017 12:03:19




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..Replacing charging system wiring on my IH 884 and have a couple of questions. In the photo of the alternator, what should each of the numbered 1-2-3 alternator posts be connected to? In which line does the diode go? To which line should the indicator light be connected? Thanks in advance!!

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jimb2

10-12-2017 16:29:59




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 Re: Alternator wiring IH 884 in reply to cool hand, 10-12-2017 12:03:19  
Hi Cool Hand, see link below to wiring diagram.



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cool hand

10-12-2017 16:54:16




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 Re: Alternator wiring IH 884 in reply to jimb2, 10-12-2017 16:29:59  
Thanks,Jimb, I have that diagram, however it is confusing to me because it shows only two wires connected to the alternator when there are three involved in the 3-in-one plug-in connector. I need to know where each wire is ultimately connected on the other end.



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jstpa

10-12-2017 16:21:59




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 Re: Alternator wiring IH 884 in reply to cool hand, 10-12-2017 12:03:19  
Wires 1 and 2 are positive battery . should be hot all the time. Wire #3 is the exciter wire if tractor has a charge light it would be hooked to that. I think you should also clean those terminals the best you can, They look rusty in the picture and that will cause you a lot of problems if there not cleaned up. hth jstpa



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cool hand

10-12-2017 16:40:42




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 Re: Alternator wiring IH 884 in reply to jstpa, 10-12-2017 16:21:59  
Thanks! Do I deduce correctly from your post that both terminals 1 and 2 are connected to a full battery power source and that 3 is wired to the key switch with the diode in that line and the indicator light connected to that wire?



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jstpa

10-13-2017 17:18:36




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 Re: Alternator wiring IH 884 in reply to cool hand, 10-12-2017 16:40:42  
Yes cool hand that would be how to wire it. Although I don't think you need a diode , but look at the diagram and see if it shows one there. hth, jstpa



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Janicholson

10-12-2017 14:08:20




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 Re: Alternator wiring IH 884 in reply to cool hand, 10-12-2017 12:03:19  
It is not a Delco DN series , nor an SI series, If it came out of the tractor from the factory, you need the factory diagram. If you (or someone in here) can tell us what it is we can help. Jim



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Bob

10-12-2017 18:30:54




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 Re: Alternator wiring IH 884 in reply to Janicholson, 10-12-2017 14:08:20  
The alternator in the photo is a Magneti Marelli.



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cool hand

10-12-2017 14:38:44




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 Re: Alternator wiring IH 884 in reply to Janicholson, 10-12-2017 14:08:20  
Thanks Jim, I believe that these came out of the factory with a Lucas alternator, however I suspect that this is an aftermarket replacement. I bought the tractor used about 12 years ago.



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