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8N battery problem

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steve

03-14-2000 15:21:44




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My 8N died on me in the middle of a job and when I jumped it it started right up but died when I removed the jumper cables!! I charged the battery and it was fine for a few days, although I did not work it very long, then when I ran it for a few hours it did the same thing, dead as a door nail. The battery seems to take a full charge and keep it. Would a faulty generator cause this problem? I have checked power while the tractor is running and get readings from both generator and regulator. Any input would be helpful before I start tearing into things!!!

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Rick-IA/MO

03-18-2000 06:43:02




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 Re: 8N battery problem in reply to steve, 03-14-2000 15:21:44  
I have a '49 8N with side distributor and original 6 volt system also. I had the same thing happen to me a year or so ago. Problem ended up being the voltage regulator. Tractor would run as long as there was a charge in the battery. Disconnect battery cables and tractor would die. With working regulator tractor will run without battery once started. Also make sure your generator is polarized. Check shop manual or search archives for info on how to do this. Hope this helps.

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Dave 50 8N

03-15-2000 10:07:55




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 Re: 8N battery problem in reply to steve, 03-14-2000 15:21:44  
I had a similar problem. Turns out the battery cables were loose. Good luck!



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Claus

03-14-2000 15:58:27




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 Re: 8N battery problem in reply to steve, 03-14-2000 15:21:44  
You may have a charging problem, or you could have a problem with partial short some place. First check out the charging system. If you have a volt meter it would help. What kind of reading do you get from the generator and regulator? Does the battery read 7 - 7.5 volts when it is charging?
(assuming you have a 6 volt system) If the reading is ok, then look for a discharge path when the tractor is not running. The best way to do that is with an ammeter. Does the ammeter show discharge?
If so you can disconnect one wire at a time until the discharge stops and then you have found your problem. Others like to disconnect all the wires and then reconnect one wire at a time... Good Luck..
Happy Motoring
Claus

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steve

03-14-2000 15:34:23




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 Re: 8N battery problem in reply to steve, 03-14-2000 15:21:44  
Forgot to state that my 8N is a side dist. original 6 volt.



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