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John Deere Tractors Discussion Forum
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4040 batteries

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backwoodsfarm

05-09-2008 18:12:58




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I was wiring in a baler electrical plug to my 4040 today, and as I connected the ring terminal to one of the small starter selenoid studs, I noticed that there are two positive battery cables hooked to the large stud on the selenoid. The RH battery negative cable is hooked to the tractor chassis and the positive cable goes under the cab and around to the LH side and hooked directly to the large stud on the selenoid. The LH battery negative is hooked to the tractor chassis and the positive also goes directly to the large selenoid stud. Is this right??? I haven't checked but I'm pretty darn sure the batteries are both 12Volt. What concerns me the most is that I can't seem to get any voltage out of the small selenoid studs to power my baler control, even when the key is on or the tractor running. Could this be due to the way the starter is wired? Electrical stuff seems to just confuse the heck out of me. Thanks in advance for any replies.

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Bob

05-09-2008 20:49:24




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 Re: 4040 batteries in reply to backwoodsfarm, 05-09-2008 18:12:58  
Two things you need to accept...

1.) Two 6-Volt batteries in series = 12 Volts.

3.) Learn to spell "SOLENOID".



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Bob

05-10-2008 08:41:21




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 Sorry... in reply to Bob, 05-09-2008 20:49:24  
See "appology post" linked below.

(In my defense, your tractor has been "re-engineered, as it IS supposed to have two SIX-Volt batteries, that's the way Mother Deere built it.)



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Dave in Tx

05-09-2008 21:38:09




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 Re: 4040 batteries in reply to Bob, 05-09-2008 20:49:24  
The batteries are not hooked in series. They are 12 volt batteries hooked in parallel. You can get your power from the positive post of either battery or the lug on the solenoid that the positive cables go to.



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teddy52food

05-09-2008 19:01:22




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 Re: 4040 batteries in reply to backwoodsfarm, 05-09-2008 18:12:58  
I don't think the small terminals are hot unless you are using the starter. Hook it up to the large stud with an in line fuse.



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