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Harry Ferguson Tractors Discussion Forum
Show Parts for Model:

idiot light charging system?

Author  [Modern View]
rusty nut

08-05-2012 08:10:50
67.240.57.120



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my friend did the wiring on my to30 a long time ago,lately the idiot light stays on after i shut the tractor off,why does it stay on with tractor not running?and how do i fix it?thanks for the help.




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rusty nut

08-06-2012 18:00:52
67.240.57.120



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 Re: idiot light charging system? in reply to rusty nut, 08-05-2012 08:10:50  
don't be sorry John,I appreciate all information given,haven't had time to look at tractor since i posted question,it does seem strange that this problem wasn't happening with the old alternator,thanks for everyones reply.



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JMOR

08-06-2012 06:36:18
99.105.24.57



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 Re: idiot light charging system? in reply to Inno, 08-05-2012 08:10:50  
Quoting Removed, click Modern View to seeEngine not running, light on, is ign turned on or off at this time?



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Richard L

08-05-2012 11:57:49
66.227.231.26



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 Re: idiot light charging system? in reply to rusty nut, 08-05-2012 08:10:50  
rusty nut, what idiot light are you referring to on a TO 30? My TO 30 does not have a idiot light.



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rusty nut

08-05-2012 12:14:44
67.240.57.120



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 Re: idiot light charging system? in reply to Richard L, 08-05-2012 11:57:49  
it is the light on the dash that lets you know if your charging system is charging or not.



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Richard L

08-05-2012 12:29:49
66.227.231.26



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 Re: idiot light charging system? in reply to rusty nut, 08-05-2012 12:14:44  
I don't have one. Never did.



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John (UK)

08-05-2012 08:45:26
79.76.250.119



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 Re: idiot light charging system? in reply to rusty nut, 08-05-2012 08:10:50  
Most likely cause is the Regulator is faulty, it may just be sticking and a slight tap may disturb it but it does look as though it is on its way out....John(UK)



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rusty nut

08-05-2012 09:13:07
67.240.57.120



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 Re: idiot light charging system? in reply to John (UK), 08-05-2012 08:45:26  
the alternator is brand new,and it is suppose to have the low rpm regulator in it,I bought it off ebay.



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John (UK)

08-06-2012 06:10:11
79.76.251.15



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 Re: idiot light charging system? in reply to rusty nut, 08-05-2012 09:13:07  
Sorry I misunderstood what you were saying, I thought that you had a generator with an external Regulator. We don't get many tractors with an Alternator and a warning light they usually fit an ammeter as it gives more information. So apologies for the misunderstanding...
John(UK)..fergusontractors@hotmail.com



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Jon Hagen

08-05-2012 12:19:12
69.26.17.61



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 Re: idiot light charging system? in reply to rusty nut, 08-05-2012 09:13:07  
Are you using a Delco internal regulator alternator ? If so, check if the #1 excite wire is not shorted to the #2 sense wire. If the #1 wire is shorted to the #2 wire, #2 is hot all the time and will backfeed through the idiot light to the ignition coil if both the idiot light and coil are connected to the same ign switch terminal. This will make the light burn when the tractor is stopped.
If not already installed, buy a delco alternator harness repair plug at the auto parts store. This plug makes for a more professional liiking job and is safe from shorts.

If the gen light goes out when you unplug the #1-#2 plug at the alternator, that would point to an internal short in the alternator or regulator.

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Bruce(OR)

08-05-2012 10:06:05
97.115.29.139



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 Re: idiot light charging system? in reply to rusty nut, 08-05-2012 09:13:07  
If the seller was triodiode, he can help you fix it. If the seller was some one else. . .



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