Adding Power Beyond, 3-spool hydraulic valve, and T-n-T to a JD 2520

J_J · Jan 20, 2012

Let me ask you this. Does the 3pt work with the BH attached?

Do you have to switch anything for the fluid to flow out the side of the tractor to the BH?

Can you operate both BH and 3pt with only two hoses from the BH, and not switching anything.

Where is the valve you refer to the PB kit?

dwellonrooftop · Jan 20, 2012

I have no backhoe but maybe in the future.The powerbeyond on the tractor is just 2 hoses with a jumper to each. The 3 pt. has to be removed on this for the hoe to mount . Power-beyond kit
I already installed the hoses directly to the valve and the return hose I put on the out port , it works okay but was wondering if it is alright to leave it for now because the fitting on the out seams to get warm. (i"m not good at explaining or to copy and paste,sorry)

jimgerken · Jan 20, 2012

Mine is done the same way. This is the third tractor I have done this way. Of course it gets warm, the fluid warms up. It will run 200 degrees or so.

kennyd · Jan 20, 2012

dwellonrooftop said:
I have no backhoe but maybe in the future.The powerbeyond on the tractor is just 2 hoses with a jumper to each. The 3 pt. has to be removed on this for the hoe to mount . Power-beyond kit
I already installed the hoses directly to the valve and the return hose I put on the out port , it works okay but was wondering if it is alright to leave it for now because the fitting on the out seams to get warm. (i"m not good at explaining or to copy and paste,sorry)

jimgerken said:
Mine is done the same way. This is the third tractor I have done this way. Of course it gets warm, the fluid warms up. It will run 200 degrees or so.

Mine as well.

JJ like to confuse things and people. He has been told many times that JD does not offer a way to return oil to the tank on the smaller tractors so we cannot have a conventional PB setup. After asking many times no one has produced evidence of a blown up valve.

All I am going to say on it...

J_J · Jan 20, 2012

dwellonrooftop; said:
I have no backhoe but maybe in the future.The powerbeyond on the tractor is just 2 hoses with a jumper to each. The 3 pt. has to be removed on this for the hoe to mount . Power-beyond kit
I already installed the hoses directly to the valve and the return hose I put on the out port , it works okay but was wondering if it is alright to leave it for now because the fitting on the out seams to get warm. (i"m not good at explaining or to copy and paste,sorry)

From looking at the picture, there appears to be a supply outlet, probably PB, and another fitting that is probably in series with the 3pt.

Since the 3pt can cause the pressure upstream to go to the relief pressure, the logical thing to do would be to use only the PB port to feed the log splitter/BH. and run the OUT from the BH/log splitter to tank not using the return port that the jumper hose is plugged into. If no BH/log splitter is used, just couple the two ports together as in the picture.

If there are three hoses from the log splitter/BH, then the PB from those valves would plug into the fitting on the tractor for flow to the 3pt. The the OUT hose would go to tank.

The BH, and the log splitter each have a relief. Do you have any idea what the setting is.

If you did not set the pressure on the BH or the log splitter valve, and it is low, then that valve is relieving whenever you max out the cyl.

If you set the BH/log splitter valve equal or a little higher, the FEL relief will do the relieving for the hyd circuit.

dwellonrooftop · Jan 20, 2012

One more question :So I can use either the out or the powerbeyond for the return from the spoolvalve?

J_J · Jan 20, 2012

I know you are looking and reading, so read this.

Well darn it, KennyD hurt my feelings as I thought he had me on his ignore list, and also stating that I try and confuse people. What he is not telling you is where the fluid is going from a log splitter/BH valve OUT port, if he even knows.

He should know all the fine details of the hyd circuit, as he has a JD.

If it is going directly to tank from the other port at the back then all is well. With the jumper in place, then the fluid also goes to the same place. Does it bypass the 3 pt?

If that return port is going back into the block and into the 3pt circuit, then I have to say that just about all manufacturers say to run the OUT flow from a valve to tank, ever which way you can.

If KennyD is suggesting that you put the 500 psi OUT port fluid into a circuit that can generate about 2500 psi, then he is wrong. If he can prove the return fluid goes to tank, then I would be satisfied with the arrangement and will preach the merits of the application.

Does JD recommend running 2500 psi fluid through that port? Anybody know?

dwellonrooftop · Jan 21, 2012

http://www.mytractorforum.com/showthread.php?t=142556
I found this and it answers my question.

J_J · Jan 21, 2012

What question.

dwellonrooftop · Jan 22, 2012

About the PB and the out port on the spool valve......The fellow in the link I posted placed the return line @ the PB port and his loader wouldn't lower so he had to run both PB and out port to tank when the PB is not being used.(when you have the PB adapter insalled)