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

[jimgerken]

Squatch - Mines got the two hoses, in, and out. I guess at 9 gpm, 3/8" hose is adequate.

Thanks for asking. I feel lucky. I have CML. Wonder drug Gleevec is making it virtually transparent to me at this time.

 

[J_J]

Sasquatch4100,

Usually the 3pt just dumps to tank, and is the last or only valve in the hyd system. If you are going to add valves, and they must be in series, the last valve before the 3pt should have PB, and routed to the 3pt IN port. The OUT port of that new valve should be routed to tank.

 

[dwellonrooftop]

I purchased this Prince RD522CCAA5A4B1 spoolvalve and did not get the power beyond adapter for it ,can I just use the out for return ? I have a john deere 2727 with power beyond and want to hook-up the existing lines say the out on tractor to in on valve and out on valve to in on tractor???

 

[J_J]

I believe you need the PB. Every valve in series should have the PB to pass fluid downstream. The OUT ports of most valves have a low psi rating. The PB ports are built to take the pressure.

 

[dwellonrooftop]

Is this what I need ? then the plug you showed would go in the out port?3/4" NPT POWER BEYOND SLEEVE PRINCE 660312004 . THANKS

 

[J_J]

No, I would not recommend using that valve with out the PB. The PB is there for a reason, and that is to pass on the fluid and withstand high pressure.

Just about every valve manufacturer recommends running the OUT port to tank. The tank ports on valves are only low pressure.

 

[J_J]

Is this what I need ? then the plug you showed would go in the out port?3/4" NPT POWER BEYOND SLEEVE PRINCE 660312004 . THANKS

The OUT port is always a separate port. If the valve does not have a PB capability, don't use it unless the OUT port is going to tank.

If that is the number for the PB sleeve, then use it in that valve.

Surplus Center - 2 SPOOL 25 GPM PRINCE RD522CCAA5A4B1 OC VALVE

Surplus Center - 3/4" NPT POWER BEYOND SLEEVE PRINCE 660312004

http://www.surpluscenter.com/adspecs/AS9-6702.pdf

Look especially how the valve is used in a series flow application in the below link

http://www.princehyd.com/Portals/0/products/valves/RD5000InstS.pdf

 

[jimgerken]

There. Clear as mud.

 

[dwellonrooftop]

Thank You Very Much :thumbsup:

 

[scrappy isb67]

No, I would not recommend using that valve with out the PB. The PB is there for a reason, and that is to pass on the fluid and withstand high pressure.

Just about every valve manufacturer recommends running the OUT port to tank. The tank ports on valves are only low pressure.

how does Deere run the backhoe valve, there are only 2 hoses that connect to the hoe. It could be possible that the PB in the Deeres are the last valve in the system and the PB return on them IS to the tank. I will have to look at the Hyd diagram on my 2320 in the service manual. all the PB kit on them is a plug that is put in the adapter and a couple of fittings that go into the adapter to allow hoses to another valve.

 

[J_J]

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]

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]

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]

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)

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]

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]

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

 

[J_J]

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]

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

 

[J_J]

What question.

 

[dwellonrooftop]

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)