Woods 1012 loader to John Deere 4200

[wileyuno]

I just bought an ultra low hrs, John Deere 4200 4wd compact tractor and I want to mount a Woods 1012 loader that came off a Ford 1720.
The loader has a joystick controlling two spool valves and was plumbed into the 1720 w/three hoses - a power beyond connection.
The John Deere has no external hydraulic ports and is equipped only with a hydraulic manifold block with a pressure/flow test port.
I've asked Woods about simply cutting and welding a tee into the pressure tube and fabricating a return back into reservoir. They say it may damage the Hyd. pump and they only offered this model loader for the 4200 to use the two spool John Deere selective control valve, which is no longer offered as a kit. To buy it by the individual parts is around $2,000.00 and is simply out of reality.
John Deere offers a single spool scv, but it's priced out of budget as well.
I could plumb into the test port (the JD tech manual says it's a PB flow, but there's no spool or check valve in the manifold block) and dump return into tractor housing at rear. That would only make a only a two line system, too.
Anybody got ideas or sources of an economical solution to making this hookup?

 

[CharlieS]

I"m not familiar with the JD hydraulics so this may not be feasible, though i have a Woods 1020 loader on an older (3430) NH and the way the hydraulics are connected to the system is by the addition of a manifold plate on top to add the necessary ports for loader pump/oil supply, then to operate the factory supplied rear remotes there's a diverter valve on the plate that moves to the "B" position for use of the remotes.
If the JD is a similar setup, then another plate may be added?

 

[J_J]

You can't put a tee in the pressure line anyway.

Can you cut the line and add compression fittings to run the pump supply to the loader and then the loader PB out to the other side of the cut line. Return port of the loader would go to tank.

or if the remotes have PB, run the PB to the loader, and the FEL PB back to the 3pt.

Here is your hydraulics.


Hydraulics:
Type: open center
Capacity: 6.3 gal [23.8 L] (gear)
6.8 gal [25.7 L] (hydro)
Pressure: 2125 psi [146.5 bar]
Valves: 2
Pump flow: 7.3 gpm [27.6 lpm]
Total flow: 12.3 gpm [46.6 lpm]
Oil type:
122o↔0oF [50o↔-17oC] : JD Hy-Gard
80o↔-40oF [26o↔-40oC] : JD Lo Vis Hy-Gard

Steering flow: 5 gpm [18.9 lpm]

 

[wileyuno]

OK & thanks.
So. if I understand what you're saying, I can (I have tools, ability):

1.Cut the pressure tube somewhere between the hydraulic pump and the rockshaft cyl. and plumb the front side of the cut tube to the press. port on loader valve.
2. Then plumb the power beyond port on the loader valve to the back side of the cut tractor press. tube.
3.Then plumb the loader valve return port into tractor reservoir.

May I assume that would be the same/similar circuit that the loader used on the Ford 1720?

-Wileyuno

 

[J_J]

I am assuming that your pump flow would go to the remote valve and then to 3pt.

If so, does the remote have a PB port, and if it does, just run a line from the remote PB port up to the loader and the FEL PB would go to the 3pt. All return lines go to tank.

No cutting necessary.

Whatever valve is first inline, set the valve relief at 50 psi below pump pressure. and set all the other relief the same.