power beyond hookup question

rodnok · Jun 15, 2016

I have a Kubota B7100 HST I am installing a used front end loader on. It has a controller that has 3 ports labeled In, Out and BYD which I assume is beyond. There is a block in the high pressure line on the tractor that has a plug in it where I think someone had something hooked into it previously and the Low pressure line has been cut and a hose is now installed where it was cut to allow flow to go back to the reservoir. I will not be adding anything into the circuit beyond the Loader. So, do I just plug the beyond port and plumb the OUT port on the controller back into a T in the return line on the Tractor? I will run a high pressure hose to the empty port in the block on the high pressure line to the IN port on the loader controller.

aczlan · Jun 15, 2016

You should tee the out ports together.
The BYD port on the first valve connects to the in port of the 2nd valve.
The BYD plug on the 2nd valve should be plugged.

Aaron Z

rodnok · Jun 15, 2016

There is no second valve so I plug the BYD port and run the out back to the low pressure (return) line with a Tee fitting? This so that the fluid returns to the reservoir.

aczlan · Jun 15, 2016

Sorry, I misread your post. I think you still need to keep them separate as there IS another valve, the 3 point hitch valve is inside the transmission and the fluid runs through that before going into the sump.

Aaron Z

Xfaxman · Jun 15, 2016

rodnok said:
I have a Kubota B7100 HST I am installing a used front end loader on. It has a controller that has 3 ports labeled In, Out and BYD which I assume is beyond. There is a block in the high pressure line on the tractor that has a plug in it where I think someone had something hooked into it previously and the Low pressure line has been cut and a hose is now installed where it was cut to allow flow to go back to the reservoir. I will not be adding anything into the circuit beyond the Loader. So, do I just plug the beyond port and plumb the OUT port on the controller back into a T in the return line on the Tractor? I will run a high pressure hose to the empty port in the block on the high pressure line to the IN port on the loader controller.

Where does this high pressure line come from?

You may need to go from BYD, to where the high pressure line went.

Pictures would help.

topbuilder · Jun 15, 2016

Also, if you end up plugging the PB, it is usually a special plug with Orings and such. Not just a pipe plug...

MinnesotaEric · Jun 15, 2016

rodnok said:
I have a Kubota B7100 HST I am installing a used front end loader on. It has a controller that has 3 ports labeled In, Out and BYD which I assume is beyond. There is a block in the high pressure line on the tractor that has a plug in it where I think someone had something hooked into it previously and the Low pressure line has been cut and a hose is now installed where it was cut to allow flow to go back to the reservoir. I will not be adding anything into the circuit beyond the Loader. So, do I just plug the beyond port and plumb the OUT port on the controller back into a T in the return line on the Tractor? I will run a high pressure hose to the empty port in the block on the high pressure line to the IN port on the loader controller.

BYD is where you want to get P pressure. If you can tap into your P line going to your rear remotes or three point, that is where you want to plumb your joystick's T tank after working so long as you have an open center style pump.

P is pressure
A, B, C, and so forth are for doing work and open-center valves need to be plumbed in series and then back to
T for Tank.

In other words, open center is continually moving fluid from the P Pump through open center valves back to T the tank like a centrifugal pump.

Closed center is like your house plumbing: fluid only moves when a valve is opened.

Knowing if you have an open or closed center pump matters so you know how to plumb a joystick.

BukitCase · Jun 15, 2016

That tractor's an open center machine -

TractorData.com Kubota B71HST tractor information

Also, you do NOT want to plug an output that's Power Beyond - either need to continue that line to 3PH as mentioned, or GET A DIFFERENT PLUG for it that does NOT isolate the two galleries inside the loader valve. Otherwise, with no loader valve actuated your system will be deadheaded and constantly in relief.

You need to figure this out BEFORE you do it (pix and more discussion should help), or you might damage more than you wanna pay for... Steve

rodnok · Jun 16, 2016

Ok, I thank you all for you input. I found the solution to my question. There is a diverter block that comes with the b1630 front end loader that is made for the B7100 tractor. It replaces the cover on the block in the high pressure line and has 2 threaded holes in it. I will run a line from the pump side of the deverter block to the IN port on the open center control. then I will run a line from the BYD port on the control back to the downstream side of the diverter block thereby completing the circuit allowing constant flow of fluid. Then run a line from the OUT port of the open center controller back to the tank/reservoir on the tractor. This allows the excess fluid to drain to the tank keeping the fluid levels at full capacity.