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Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

Re: 9n generator

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soundguy

03-07-2013 06:13:20
108.112.200.227



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post a pic of that generator.. identify if it is using a cutout.. or if there is a vreg installed. if a vreg.. is it installed just 2 wire as a cutout?

post back the details.

ps.. disconnect wires from genny, turn 3rd brush up and apply battery to armature to see if it motors.




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noble525

03-07-2013 06:42:24
69.174.148.79



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 Re: 9n generator in reply to soundguy, 03-07-2013 06:13:20  
It has a voltage cut out, no regulator. Cut out is round with 2 wires. Don't have the genny with me at work to post. I have the genny off the tractor, can I just apply 6v to where the single wire went?



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soundguy

03-07-2013 07:25:27
108.112.200.227



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 Re: 9n generator in reply to noble525, 03-07-2013 06:42:24  
6v- actually, to armature...and ground to the frame.. keep in mind it was + ground ...



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noble527

03-07-2013 08:28:13
69.174.148.79



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 Re: 9n generator in reply to soundguy, 03-07-2013 07:25:27  
right, can I use a 6 volt charger? Which post on the top where the 2 wires are is it for ground? Or does it matter? Also any input on the wireing of the resistor why I would only have 2 wires coming off the the resistor?



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Dell (WA)

03-07-2013 09:34:19
75.172.15.252



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 Re: 9n generator in reply to noble527, 03-07-2013 08:28:13  
noble527.........it matters, look CLOSELY at yer 2-posts on yer genny. One is INSULATED (plastic) and the other is GROUND. do NOT connect yer 6-volt charger to GROUND ...or... you will buying a new (and rare) 6-volt charger.

ALL squarecan ignition coils used on the weird 9N 4-nipple dizzy, require the MANDATORY "infamous ballast resistor. NO ARGUE!!!

As fer the "3-wire" ballast resistor question. One of the terminals is the BATTERY source. And the source provides electricity to one of the ignition switch terminals. The ignition switch then provides electricity to one-side of the MANDATORY ballast resistor and the OTHER side of the ballast resistor, a wire goes thru the sparkie tube to the top of the squarecan ignition coil terminal.

You do know that you MUST "polarize" yer 2-terminal roundcan cut-out underneath the battery tray on the steering column, don't you??? Just "arc-spark" the 2-terminals together, engine OFF. I use a pair of pliers handles, you can use bailin'warr iff'n you want. You can re-polarize as many times as it takes to feel warm'n'fuzzy ...er... charging.

As a side note; adjust yer 3rd-brush so yer ammeter reads about 5-amps charge (+) at 1/3-throttle. Gennys do NOT charge at idle. .......the charged Dell

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JMOR

03-07-2013 10:05:55
72.181.173.171



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 Re: 9n generator in reply to Dell (WA), 03-07-2013 09:34:19  
Nope....doesn't matter on his. From his original post: "It has one wire, and then on case it has 2 studs with a jumper wire on them"
He is using an 8N10000A, & with the A-to-G jumper, it acts just like a 9N10000C or 2N10000. Like this: with high-end/high cost/deluxe tensioner :)



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JMOR

03-07-2013 09:10:15
72.181.173.171



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 Re: 9n generator in reply to noble527, 03-07-2013 08:28:13  
Quoting Removed, click Modern View to seeSince the two posts on the barrel are jumpered together, then they are now both ground, as is the entire metal body &brackets of the generator.

The third terminal on the 12250 resistor assembly is an isolated stud, commonly used as a power tie-point, but someone could have wired it such that an ammeter terminal is serving as that tie point, or even an ignition switch terminal or a wire nut or whatever.

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noble527

03-07-2013 10:28:42
69.174.148.79



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 Re: 9n generator in reply to JMOR, 03-07-2013 09:10:15  
Mine looks just like the one in the picture (minus the strap ;). So I can hook my 6 volt charger up to the genny? Pos on single wire post, neg on either one of the top screws? As for the resistor behind the dash, do I need to wire it just like the diagram the JMOR has made? Sorry for all the questions, just dont like to see smoke rolling when i do the wrong thing!! Thanks!



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JMOR

03-07-2013 10:43:56
72.181.173.171



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 Re: 9n generator in reply to noble527, 03-07-2013 10:28:42  
Quoting Removed, click Modern View to seeIF your battery is installed with + (large post to tractor chassis ground, then connect your charger reverse to what you described. i.e., charger + to either of barrel posts AND charger negative (-) to single post on rear end plate of generator (Arm terminal). I have made dozens of diagrams, but if you found one for 9N with cut out and generator, then you probably have the correct diagram. One other thing, you would be better off using jumper cables & connecting gen to battery than trying to use charger...charger my not yield enough output, may no provide any output if a newer automatic type, etc.

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noble527

03-07-2013 10:34:10
69.174.148.79



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 Re: 9n generator in reply to noble527, 03-07-2013 10:28:42  
forgot to mention mine does not have any lights.



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noble527

03-08-2013 07:47:24
69.174.148.79



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 Re: 9n generator in reply to noble527, 03-07-2013 10:34:10  
welp, last night went I got home, I applied voltage to the genny, and she spun, so im assuming that means it will generate some sort of voltage. Ordered a new starter cable, 0 gauge, and going to re wire. Hopefully after this is all said and done she will charge! Im thinking that my amp meter is probably ok, and no need to replace. Any testing ideas on the cut out, to check and see if its working properly? Thanks again for all the info!

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Mad Farmer

03-12-2013 19:40:48
64.222.121.240



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 Re: 9n generator in reply to noble527, 03-08-2013 07:47:24  
You can jumper the two wires on the cutout when it is running. It it charges jumpered you have a bad cutout , or connection at cutout



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JMOR

03-08-2013 10:38:59
72.181.173.171



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 Re: 9n generator in reply to noble527, 03-08-2013 07:47:24  
Quoting Removed, click Modern View to seeThere are 2 terminals on the cut out, one to battery & one to generator & they are specific & not reversible. Contacts inside the cut out close to connect battery to generator or open to disconnect battery from generator. From a start, as generator voltage increased with increasing RPM, the generator voltage will reach about 7.0 to 8.5 volts and within that range the contacts will close, connecting generator to battery. If you place an analog voltmeters leads on those 2 cut out terminals, they should show voltage up until the contacts close, at which point that voltage should drop to zero.
Upon engine shut down, as generator slows toward a stop, the generator voltage drops and at some point, the contacts should open to disconnect the battery from the generator, at which time the meter should read a value equal to battery voltage (stopped engine).

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