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Re: 420 hydraulic remote not working.

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Author  [Modern View]

02-04-2013 05:25:32

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Did the tractor used to operate this hydraulic load without problems? What pressure is the relief valve set to? iirc 1350psi or so is max.

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02-07-2013 06:55:36

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 Re: 420 hydraulic remote not working. in reply to buickanddeere, 02-04-2013 05:25:32  
It does the same when I hook up the wood splitter under no load as if nothing was connected and you were operating opperating the valve with nothing connected to the quick couplers.

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Tx Jim

02-07-2013 09:22:22

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 Re: 420 hydraulic remote not working. in reply to gamehunter56474, 02-07-2013 06:55:36  

Are you utilizing the breakaway couplers to attach the wood splitter? If so it's possible that the male coupler tips are the incorrect ones not pushing the poppet balls /tips off their seats thus not allowing the oil to flow. The spool valve type control such as this don't normally cause a lot of problems short of just wearing out.

This post was edited by Tx Jim at 09:40:49 02/07/13.

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02-07-2013 11:22:48

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 Re: 420 hydraulic remote not working. in reply to Tx Jim, 02-07-2013 09:22:22  
I think it is passing some fluid. Both male and female connectors are the same and with the wood splitter on it it moves the ram a little bit mor like it quivers. As the motor almost chokes off. I'm just afraid of troubleshooting so i don't break the pump or shear the pump gear, etc. I also tried running a hose looped in to out of the quick connects same result. Lots of oil spraying out of the valve when you work it in either direction. At center you wouldn't know there is a problem.

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02-07-2013 07:07:57

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 Re: 420 hydraulic remote not working. in reply to gamehunter56474, 02-07-2013 06:55:36  
Sorry but I"m having some difficulty following the info. There is a 99.99% probability that the valve has an assembly problem or broken internals. The valve is going from open Center to a dead head with no relief valve protection when the valve is actuated. Don"t be trying to use it before re-rebuilding the valve. Too expensive and time consuming to break the pump by ignoring the valve "s problems. Everybody makes a mistake now and again when working on equipment.

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02-07-2013 11:10:36

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 Re: 420 hydraulic remote not working. in reply to buickanddeere, 02-07-2013 07:07:57  
Thanks for the info. So whats the next step. Where I used to live there was many places to take it to be rebuilt. Now where i am not really an ag community, There is a JD dealership that mostly does lawn and turf but they have a big service department. Can we get a new replacement from anywhere for under $1000, or is the rebuild the ticket.

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