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John Deere Tractors Discussion Forum
Show Parts for Model:

John deere 510 hydraulics

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07-06-2014 05:58:58

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I have a mid sixties john deere 510 farm tractor,made in Germany,with a model 37 loader
I would like to add down pressure to the loader and need to know if the hydraulics are open or closed center and what the flow rate might be Thanks

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07-06-2014 10:08:49

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 Re: John deere 510 hydraulics in reply to Alm, 07-06-2014 05:58:58  
Iooks like I can be confident in using a open center valve.have one rated at 9 gpm so will use it,I do not have power steaering.
I am not to concerned about re enforcement as the bucket size will not change,just want to keep the bucket from diving into the ground and floating up when back dragging
Thanks to everyone for the quick replies

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07-06-2014 07:09:22

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 Re: John deere 510 hydraulics in reply to Alm, 07-06-2014 05:58:58  
iirc the hydraulic pump is direct driven driven from the crankshaft snout. It's an open center gear pump with a relief valve built in. Adding down pressure should be just a matter of changing out the hydraulic rams and adding hoses.

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long green line man

07-06-2014 06:58:37

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 Re: John deere 510 hydraulics in reply to Alm, 07-06-2014 05:58:58  
37 loader is a light duty loader, came from factory with only single acting lift cylinders, You will need to change to double acting cyl. Caution !!! ; loader mounts are not strong ! I would add reinforcement , from top of boom masts to front of tractor , to withstand stress of down force!!! ....

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07-06-2014 06:41:48

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 Re: John deere 510 hydraulics in reply to Alm, 07-06-2014 05:58:58  
The system is open centre. If there is power steering, the hydraulic flow is only about 3 to 4 imperial gallons per minute at 2400 engine rpm for other hydraulic functions. If manual steering, there is about 6 imperial gallons per minute. Hope this helps....Ron

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Tx Jim

07-06-2014 06:34:58

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 Re: John deere 510 hydraulics in reply to Alm, 07-06-2014 05:58:58  
I'm fairly confident the 510 has open-center hyd's

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