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John Deere 4010 wiring diagram?


 
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NoelC
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PostPosted: Sat Aug 29, 2015 5:49 am    Post subject: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

Does anybody happen to know where I can find a wiring diagram for a 4010? Can't get it
to turn over. Tested the starter, replaced the solenoid, replaced the ignition switch,
Checked the batteries. Suspect it must be a wiring problem.
 
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buickanddeere
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PostPosted: Sat Aug 29, 2015 7:26 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote


Given that the tractor is approaching 55 years old. It's time to consider that the old wiring harness is "done". Age, vibration, exposure to dust, dirt, mud, manure, oil, vibration and rodents have taken their toll.
I have used http://www.wiringharnesses.com/ and they are the best value for the $$$.
Better than having a tractor that won't start or bursts into flame.
This would also be the time to consider the 12V conversion.
 
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Tx Jim
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PostPosted: Sat Aug 29, 2015 8:29 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote


I'd suggest to check operation or lack of the neutral start switch(parts key 12) under cowling in frt of gearshift control lever

 
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coonie minnie
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PostPosted: Sat Aug 29, 2015 9:09 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

I would suggest you check the function of the neutral start switch.... and that the harness is atatched to it. Look behind the right hand battery.
 
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coonie minnie
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PostPosted: Sat Aug 29, 2015 9:11 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

And it looks like Jim beat me to the answer. It's behind the battery on a 4020... not sure on the 4010. I assumed the same.
 
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NoelC
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PostPosted: Sat Aug 29, 2015 9:19 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

My father's tractor, I'm relaying messages to him. He doesn't think it has a neutral start switch, it used to turn over while in gear, had a 4020 with one. I'll tell him where to look.
 
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Tx Jim
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PostPosted: Sat Aug 29, 2015 9:27 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote


Check all 4 battery post connections for cleanliness & tightness.
 
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NoelC
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PostPosted: Sat Aug 29, 2015 9:35 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

He has. Took the batteries out, charged one, replaced the other with a new one.
 
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buickanddeere
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PostPosted: Sun Aug 30, 2015 4:46 pm    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote


Mis-matched batteries can be a factor causing battery explosions.
 
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Tx Jim
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PostPosted: Mon Aug 31, 2015 2:39 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

buickanddeere wrote:
(quoted from post at 19:46:57 08/30/15)
Mis-matched batteries can be a factor causing battery explosions.


b&d
Please explain your "mis-matched" battery theory??

I've always heard in 24 volt system that new 12 volt batt installed with old 12 volt would draw new battery output down to equal old battery output but I never witnessed any explode except where "internal or external sparks" existed.
 
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buickanddeere
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PostPosted: Mon Aug 31, 2015 6:10 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

Tx Jim wrote:
(quoted from post at 06:39:17 08/31/15)
buickanddeere wrote:
(quoted from post at 19:46:57 08/30/15)
Mis-matched batteries can be a factor causing battery explosions.


b&d
Please explain your "mis-matched" battery theory??

I've always heard in 24 volt system that new 12 volt batt installed with old 12 volt would draw new battery output down to equal old battery output but I never witnessed any explode except where "internal or external sparks" existed.


It's not a theory . The stronger battery can push the weakest cell on the weak battery into reversal. That causes boiling and gassing vast amounts of hydrogen and oxygen. Add ignition source such as a failing internal link in the battery and BOOM.
 
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Tx Jim
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PostPosted: Mon Aug 31, 2015 8:16 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

buickanddeere wrote:
(quoted from post at 09:10:21


It's not a theory . The stronger battery can push the weakest cell on the weak battery into reversal. That causes boiling and gassing vast amounts of hydrogen and oxygen. Add ignition source such as a failing internal link in the battery and BOOM.


Failing internal link in a battery will cause a ""BOOM"" without the aid of a new battery attached to it.
 
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Mike Aylward
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PostPosted: Mon Aug 31, 2015 8:28 am    Post subject: Re: John Deere 4010 wiring diagram? Reply to specific post Reply with quote

On a 4010 the neutral safety start switch is just ahead of the shifter assembly under the right hand side of the dash cowling. Mike
 
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