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4010 JD hydraulics kills tractor ?


 
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Mtractor
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PostPosted: Fri Dec 01, 2017 5:22 pm    Post subject: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

I just got a good running 4010 JD diesel tractor 1963 model. All hydraulics work good i thought. . But i put a loader on it a GB 900 high lift. Brand new closed center hydraulic double handle valve. As of now
i just plugged into rear remotes but i will change that later. Now i hooked it all up and the bucket works fine but when i try to lift the loader cylinder it kills the tractor. After that i thought maybe bad
valve so i hook the loader cylinders direct in the rear remote and the same thing. I checked my preassure with hydrailic gauge plugged into outlets and i have 2200. Im thinking i need to rebuild the loader
cylinders. And after the tractor dies from trying the loader cylinders the tractor will just crank and run a few minutes and then die over and over again . I blew the return line out it was clean . if i have
not used the hydraulics the tractor will run fine for a long time with no problems
 
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Bob
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PostPosted: Fri Dec 01, 2017 8:06 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

ASSUMING you are not "trolling" us, that's a pretty unique problem!

No matter what happens with attached hydraulic equipment, it should never "kill" the engine, as the pump "goes out of stroke @ 2000 psi, or so no matter what else is going on.

I would watch hydraulic pressure to see if it goes out of sight (for some reason) as the engine is dying, if not, it's a fuel supply/injection pump issue.
 
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gene g
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PostPosted: Fri Dec 01, 2017 8:49 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

You should not be able to kill the engine with a closed center pump . This is going to be a good one . You have checked standby its correct .When you demand flow the power needed will increase but not enough to kill engine.This problem started when the new loader was installed correct ? Have you saw any other power demands cause problems?
The engine should be able to pump full flow at 2200 psi and not die .At what RPMs have you saw this problem ? Idle only or higher ? Have you tried moving control lever to lift slowly ?
 
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gene g
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PostPosted: Fri Dec 01, 2017 8:53 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

Trolling ? new word for me ?
 
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Mtractor
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PostPosted: Fri Dec 01, 2017 9:28 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

Kind of wierd to me too . I ve put several loaders on 4010-4020 JD and never had this problem .
 
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Tx Jim
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PostPosted: Sat Dec 02, 2017 3:45 am    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote


Yepper frt hyd closed center pump stopping 6 cyl engine is a new problem I've never heard of. I agree I would suggest to monitor stand-by pressure with a gauge while attempting to operate loader
 
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tim s
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PostPosted: Sat Dec 02, 2017 9:24 am    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

I agree this can not happen,,and before the pump would kill the motor the coupler would detonate..
 
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riveroadrat
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PostPosted: Sat Dec 02, 2017 5:39 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

I think it relates to fishing.
 
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fixerupper
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PostPosted: Sat Dec 02, 2017 6:56 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

Just an outlandish far fetched trouble shoot here: did a loader mounting bolt get in the way of the fuel line? When the lift cylinders operate the bolt shifts just right and pinches a fuel line? If the bolt has the line partly pinched, 1/8" movement could pinch it off the rest of the way. I've seen some weird things like that happen over the years and some of you other guys on this site have seen more than I have.
 
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SVcummins
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PostPosted: Sun Dec 03, 2017 1:37 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

Wait till the agco fiat guys get ahold of this one they are already quoting you about using dynamite to fix John Deere hydraulics because I guess John Deere is just that hard to work on they say
 
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Mtractor
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PostPosted: Mon Dec 04, 2017 8:27 pm    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

I rebuilt the cylinders and all is fine now. I dont know why it was killing the tractor .
 
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Tx Jim
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PostPosted: Tue Dec 05, 2017 3:05 am    Post subject: Re: 4010 JD hydraulics kills tractor ? Reply to specific post Reply with quote

CVPost-Mtractor wrote:
(quoted from post at 23:27:23 12/04/17) I rebuilt the cylinders and all is fine now. I dont know why it was killing the tractor .


Well that's unique & I don't understand how faulty cylinder packing could cause engine to die.
 
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