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Tool Talk Discussion Forum

hydraulic valve problem.

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oliver dave

06-06-2005 14:36:49




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I have a locking valve on my woodsplitter that will not cut off unless you flip the lever(it was used to run a hydraulic motor) .Is there a way I can make a locking valve into one that will pop back to the off postion. I'm planing to have two 3/4 feeds going to the valve and I would like it to go off when I let go.Because now all it do's is kill the motor when the ram gets to the end and thats with one feed. I can only wonder how fast the ram will run out and kill the motor with two feeds.

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oliverdave

06-08-2005 06:05:32




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 Re: hydraulic valve problem. in reply to oliver dave, 06-06-2005 14:36:49  
This is why I asked you all,I didn't think it was right.The valve was built to take two 3/4''lines, so no problem there.The pump do's not say how many gpm or anything, all it says is Vickers vain pump.The valves say even less. I know the pump has a 2" feed line to it from the tank and two 3/4" lines to feed the valves.So with that in mind I can tell you its a big pump to run a woodsplitter.The pump,valves and v4 motor where all part of a old vertical drilling machine I am trying to make run a wood splitter.So I will have to find valve that has a relief valve,any idea what pressure the relief valve should be for a logsplitter?

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BFO

06-07-2005 04:16:04




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 Re: hydraulic valve problem. in reply to oliver dave, 06-06-2005 14:36:49  
If the valve was used to run a hydraulic motor then it is the wrong valve for a log splitter. You need to get a valve with a pressure detent, and a relief valve built-in. This will allow you to control at what pressure the valve kicks out. Also, if you are killing the motor at the end of the cylinder stroke, I am assuming that there is no relief valve in your system, that can be dangerous if a hose blows. HTH

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J. Schwiebert

06-06-2005 18:24:04




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 Re: hydraulic valve problem. in reply to oliver dave, 06-06-2005 14:36:49  
First of all I would guess you mean the valve has a detent position. What make and model of valvue do you have as most detents are add on's. I do not know what your idea of the two 3/4 inch lines is but remember valves are rated also in maximun flow and 2 3/4 inch lines will build more flow that you need to pass through that valve. Resistance like that builds way to much heat. How about telling us the make and model of the valve and the ouput of the pump.

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lucasss

06-06-2005 16:50:55




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 Re: hydraulic valve problem. in reply to oliver dave, 06-06-2005 14:36:49  
mine was doing that and i replaced the control valve.it had a broken spring in it and i couldnt find one like it. lucas



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