Setting up remotes on a Deere 750 tractor

I have a John Deere 750 tractor with an after market Bush Hog loader. The loader utilizes a joystick which has 3 hydraulic lines connected to the tractor’s hydraulic system: IN, OUT and Power Beyond (PB). The OUT hose goes to the reservoir, The IN hose goes to the O port of the hydraulic pump and the PB hose goes to the I port. I understand that this is a closed center system.

When I want to use my 3point log splitter, I disconnect the loader’s PB and IN hoses from the tractor’s hydraulic system and connect the splitter’s IN and OUT hoses respectively to the I port and O ports of the tractor’s hydraulic system.

This gets to be a PITA whenever I want to switch between the loader and log splitter because I have to disconnect and reconnect hoses. It’s additionally harder because reconnecting one of the loader hoses meets a lot of resistance due to some unrelieved pressure. So I thought about setting up remote outlets where one only has to connect the log splitter’s hoses and leave the loader hoses alone.

How is this done? What do I need to do to accomplish this? Do I route the loader’s PB hose to one outlet where the splitter’s I hose would hookup. And the splitter’s O hose would be connected to the other outlet which in turn connects to the O port of the tractor’s hydraulic system. Then put a plug in the tractor’s I port. Would this work?

If it makes a difference, the PB hose and the splitter’s I hose have male fittings; the others are female.

I hope my description of the problem is not too confusing. I know little about hydraulics but am mechanically capable.

iirc the 750 Ddere built to spec by Yanmar is open Center. The log splitter valve and loader valve are either open Center . Or there is a relief valve passing to prevent damage when ever a hydraulic function is not being used.
The Deere parts book on the JD web site lists an SCV kit.
There are shops around that deal in Yanamar, legal and grey market. They may have something?

I know darn near nothing about hydraulics, and I have little doubt someone here will have 100 reasons why what I did is a bad idea, but check the link for pictures/explanation on how I added rear remotes to my 750.

Two Notes:

1. I DO NOT have power beyond and use the remotes for two-way cylinders only, so I'm not sure this applies to your situation.

2. I have since teed off the secondary line and run remotes to the front as well, to operate a grapple on my FEL
Hydraulic Remote on JD750

I saw your article awhile back about utilizing a Prince two way valve and started to plan for it when I realized I also had Power Beyond. Using Power Forward seems like a simpler solution.

I don't want to use a SCV kit as the housing is a lot of money. I feel that attaching a piece of angle iron with two holes to mount the couplers would be much less expensive. All I need to do to go forward is to be sure of the proper hydraulic flow without ruining something.

In addition, I'm sure the tractor is a closed center setup is because inside the hydraulic pump housing between the IN and OUT ports is a screw put in to block the flow. I read that somewhere but can't find the article.

You did a nice job on that. If I am not mistaken, you are using the added valve as a diverter, to switch flow between valves on the loader to the rear remotes?

I would think that the JD 750 would be real slow on most log splitters.

How about setting up a PTO driven pump for the splitter? Kind of how many of the three point backhoes work.

Correct. Simple, like me...

No need to Jerry rig on a divert valve.
On a open Center system just add a scv inline with the discharge line returning from the loader control valves.
On a closed Center system "T" into the pressure line to supply the scv. Return from new valve goes to a ported filter cover or back to sump . Back to sump depends on the tractor and the application.
A high flow load returning to the sump doesn't work worth a darn on a 20-55 series Dubuque/Mannheim .
A 10-60 series Waterloo by design usually returns oil between the trans pump outlet and the hydraulic filter inlet.
I'm still 99.9% certain that 750 had an open Center gear pump.

The JD 750 compact tractor is open center hydraulics.

That plug I think you refer to is installed when you add on the selective control valve. This is where the valve gets it's pressure fluid from (located under the seat) and then the power beyond line goes back to the rockshaft housing(under the seat) to work the 3 pt.