Allis 5020 running log splitter

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   I'll start by saying that I'm new to tractor hydraulics.  I have an Allis 5020 and picked up a Deere log splitter at an auction for next to nothing.  I am able to run it through the remote hydraulic ports, but rather than using the controls on the splitter, I have to put it into bypass mode and use the control for the remote coupler.  While this works, it's time consuming to walk back and forth between the 2 and it makes it hard to balance a log and try to run the splitter.

I'm wondering if there is a way for me to hookup lines with quick connects that would go direct to the splitter, and where I would hook those lines into in my hydraulics 

I've taken several pictures as well as a photo from the service manual to help show the controls.  Link Here

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rdorsten Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 09 May 2013 Points: 16	Post Options Post Reply Quote rdorsten Report Post Thanks(0) Quote Reply Topic: Allis 5020 running log splitter Posted: 22 Sep 2015 at 9:31pm
	I'll start by saying that I'm new to tractor hydraulics. I have an Allis 5020 and picked up a Deere log splitter at an auction for next to nothing. I am able to run it through the remote hydraulic ports, but rather than using the controls on the splitter, I have to put it into bypass mode and use the control for the remote coupler. While this works, it's time consuming to walk back and forth between the 2 and it makes it hard to balance a log and try to run the splitter. I'm wondering if there is a way for me to hookup lines with quick connects that would go direct to the splitter, and where I would hook those lines into in my hydraulics I've taken several pictures as well as a photo from the service manual to help show the controls. Link Here

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SHAMELESS Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 13 Sep 2009 Location: EAST NE Points: 29486	Post Options Post Reply Quote SHAMELESS Report Post Thanks(0) Quote Reply Posted: 22 Sep 2015 at 10:51pm
	I too have a 3-pt log splitter that runs off the tractor hyd's. I attached a long piece of conduit to my lever on the tractor and can now stand at the splitter holding the log and running the ram. (on the cheap)

Dan73 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 04 Jun 2015 Location: United States Points: 6054	Post Options Post Reply Quote Dan73 Report Post Thanks(0) Quote Reply Posted: 23 Sep 2015 at 6:37am
	We always just used a block of wood to trig the handle on the tractor and used the wood splitter control valve. The only issue you get into that way is if the wood splitter relief valve is set to a higher pressure then the tractor relief valve. In which case you just back off the relief valve on the wood splitter so the tractor doesn't trip. To plumb a remote port inline with the tractor pump requires that you do a fair amount of plumbing. I have this on the hydraulic system I added to my d17 but you have to add a pressure relief valve to the entire hydraulic loop then after the relief valve you can add two quick connects one on either side of a ball valve which will force the hydraulic oil to flow through the quick connects and thus through your wood splitter. You have to have the relief valve to protect the system if you forget to open the ball valve. I have seen people just take the line going to the control valve on a tractor and make an inline connector they unhook and put in their splitter. This seems risky to me if you disconnect that inline connector and forget to hook it up or disconnects it while the tractor is running the pump will either blow a line or stall the motor. Whatever you do make sure you don't dead head the pump the oil has to have a place to flow or bad things will happen very fast.

rdorsten Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 09 May 2013 Points: 16	Post Options Post Reply Quote rdorsten Report Post Thanks(0) Quote Reply Posted: 23 Sep 2015 at 7:49am
	I understand the block of wood to basically "bypass" the remote. If I did that I can hear the pressure being released via the valve on the tractor. There is no problem with just letting this run continuously? I figured this wasn't good to let happen. Again, forgive my ignorance.

Dan73 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 04 Jun 2015 Location: United States Points: 6054	Post Options Post Reply Quote Dan73 Report Post Thanks(0) Quote Reply Posted: 23 Sep 2015 at 7:57am
	The wood splitter needs to have an open center valve. With an open center valve on the wood splitter there will ne no restriction to the flow of oil. Most but not all tractors have open center valves. If you have an open center valve system there is no harm in blocking or bypassing the tractor hydraulic lever and using the wood splitter valve. If the tractor oil is building pressure and going not bypass you need to determine if the splitter has an open or closed center valve if it is closed center I would replace it with an open center valve.

rdorsten Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 09 May 2013 Points: 16	Post Options Post Reply Quote rdorsten Report Post Thanks(0) Quote Reply Posted: 23 Sep 2015 at 8:29am
	According to tractordata, the 5020 is open center. Is there an easy way to tell if the splitter is open or closed center? Edited by rdorsten - 23 Sep 2015 at 8:44am

Dan73 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 04 Jun 2015 Location: United States Points: 6054	Post Options Post Reply Quote Dan73 Report Post Thanks(0) Quote Reply Posted: 23 Sep 2015 at 5:10pm
	An open center valve will allow oil to pass when it is in the center position. If you take the ends off the hoses you should be able to pore oil through them by hand or force air through with an air compressor. A closed center valve won't allow anything to pass when the valve is in the center. If you have a flow meter you could put it in the lines to the splitter and measure the flow.