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Ford Tractor Alternator wiring Diagram
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Roger Martin New User
Joined: 15 Feb 2012 Posts: 16
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Posted: Wed Feb 15, 2012 5:20 pm Post subject: Ford Tractor Alternator wiring Diagram |
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I can identify my tractor wires but the Alternator is unmarked.
I need a diagram for the E7NN10B376BB
It only shows a W next to one terminal and for me that relates to nothing. |
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Ultradog MN Tractor Guru
Joined: 22 Apr 2001 Posts: 21872 Location: Twin Cities
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Posted: Wed Feb 15, 2012 5:30 pm Post subject: Re: Ford Tractor Alternator wiring Diagram |
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Year and model please.
All the help you need is here but we need the basics. |
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Roger Martin New User
Joined: 15 Feb 2012 Posts: 16
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Posted: Wed Feb 15, 2012 6:07 pm Post subject: Re: Ford Tractor Alternator wiring Diagram |
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New Alternator E7NN10B376BB
Replacement for Ford 3230, 3430, 3930, 4130, 4639, 4830, 5030, 5610s, 7010s, 7610s, 7810s, and 8010 Tractors
A marked picture would be nice but I just need to know where to put the field, Regulator, and output wires. Ground is obvious. |
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Roger Martin New User
Joined: 15 Feb 2012 Posts: 16
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Posted: Wed Feb 15, 2012 6:18 pm Post subject: Re: Ford Tractor Alternator wiring Diagram |
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Good luck viewing but here is a product pic.
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JMOR Tractor Guru
Joined: 13 Aug 2007 Posts: 21650
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Posted: Wed Feb 15, 2012 6:40 pm Post subject: Re: Ford Tractor Alternator wiring Diagram |
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Roger Martin wrote: | (quoted from post at 22:07:41 02/15/12) New Alternator E7NN10B376BB
Replacement for Ford 3230, 3430, 3930, 4130, 4639, 4830, 5030, 5610s, 7010s, 7610s, 7810s, and 8010 Tractors
A marked picture would be nice but I just need to know where to put the field, Regulator, and output wires. Ground is obvious. |
Bad picture, but looks like it my have places for one or two connectors....does your harness have connectors? |
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Mark K Regular
Joined: 04 Oct 2007 Posts: 115
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Posted: Wed Feb 15, 2012 6:59 pm Post subject: Re: Ford Tractor Alternator wiring Diagram |
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That picture shows an internally regulated alternator, there would be no field wire, there should only be B+ battery wire, an ignition wire, and maybe an idiot light wire.
Does your tractor have an external regulator?? |
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Mark K Regular
Joined: 04 Oct 2007 Posts: 115
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Posted: Wed Feb 15, 2012 7:19 pm Post subject: A better pic. |
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Here is a better picture, w would be your idiot light, B+ is your battery wire, and that is all you should need to set that baby off. How many wires do you have??
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Mark K Regular
Joined: 04 Oct 2007 Posts: 115
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Posted: Wed Feb 15, 2012 7:41 pm Post subject: More info. |
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The orange wire push on connector will be a b+ battery sense, but it goes through a thermistor on the tractor somewhere, not sure exactly why they are doing it that way, it must boost or backoff charging rate depending on temperature. MK |
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Mark K Regular
Joined: 04 Oct 2007 Posts: 115
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Posted: Wed Feb 15, 2012 8:17 pm Post subject: And more.... |
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The 3 spade push in terminal in the center is for European applications only and would have a large black plug, they are basically the same as the other terminals I mentioned, but they can be ignored on US applications, some manufacturers put a cover over these.
They are covering a lot of applications with one alternator, no wonder we call Lucas "the prince of darkness" :~)
MK |
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Roger Martin New User
Joined: 15 Feb 2012 Posts: 16
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Posted: Wed Feb 15, 2012 8:29 pm Post subject: Re: And more.... |
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The Tractor is a Ford 545C
This is not the Alternator that was on it
but it is supposed to replace the D5NN10300D
that has 4 wires including:
Field, Ground, Regulator, and Output
The Output connects to the same starter terminal as the Battery Positive cable |
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Mark K Regular
Joined: 04 Oct 2007 Posts: 115
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Posted: Wed Feb 15, 2012 8:56 pm Post subject: Re: And more.... |
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It could go in place of it, but it would need to be wired differently. Your D5NN10300D is an externally regulated alternator, the one you are replacing it with is an internally regulated unit, so if you are going to use it, you will have to do some wiring.
You could use your B+ wire from the starter as is, but your old "field wire" and "regulator wire" from the regulator will not and will need to be covered, then you will need an idiot light wire for the W terminal, and as for the "sense" wire, I'm not sure if it will run right without it. You are going to end up with a mess unless you do a complete conversion and get rid of the old regulator.
Are you sure you want to go this way? I think I would stick with the factory setup, if not for me for the next guy! :~)
Here is your stock alternator from the second number you gave me, externally regulated.
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Bern Tractor Guru
Joined: 05 Apr 1999 Posts: 5168
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Posted: Wed Feb 15, 2012 9:14 pm Post subject: Re: Ford Tractor Alternator wiring Diagram |
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"W" is usually warning lamp. |
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Roger Martin New User
Joined: 15 Feb 2012 Posts: 16
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Posted: Wed Feb 15, 2012 10:24 pm Post subject: Re: And more.... |
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I can see that mounting it and fabricating a new belt tension arm was the easy part.
I will look for the external regulator tomorrow.
If not simple, I will have to send the new alternator back for exchange. |
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Mark K Regular
Joined: 04 Oct 2007 Posts: 115
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Posted: Wed Feb 15, 2012 10:55 pm Post subject: Re: And more.... |
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Was there a reason to switch to the current setup? |
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