Yanmar Hyd ?

[FixableUnknown]

I have a YM2000 grey (the pea green model) and have some questions about remote hydraulics. I have a Bush hog FEL QT 1846. I understand I can use the power beyond port from the FEL control valve to setup my remotes. I have searched and read many post but have a few unanswered questions.

1. Do I have to change the fitting in the picture to activate the power beyond feature? I spoke with a guy at Bush Hog who was very vague on how to hook this up.

2. Will a standard log splitter open center valve work with this setup?

3. Where do I connect the return line?

4. When the lines are not being used, do I need to hook them to each other to form a loop?
I will also post this in the Hydraulic group.
Thanks, Chris

 

[J_J]

Usually, on a new valve, there is a plug in the PB port. You will need the PB sleeve, to make the valve Power Beyond. The purpose of the sleeve is to block off the fluid to the return port. After you run a hose to the back for the remote valve, you will need a return hose to tank. The fluid has to go through the last valve, and from there to tank. The extra loop hose to connect the work ports, is a safe guard in case you flip the levers on by accident. In the static state, the fluid goes through the valve uninterrupted. You will need a detent motor spool valve if that is a hyd driven bush hog. The bush-hog hyd motor should have a relief valve across the motor, in case the QD's pop off, or not connected correctly

 

[FixableUnknown]

This is going to power a wood splitter and maybe a few more implements. I am having problems locating the PB sleeve for the Bush Hog FEL. On the return line, can I use a T at the return where the FEL connects to the main tractor return?

 

[kennyd]

I have a YM2000 grey (the pea green model) and have some questions about remote hydraulics. I have a Bush hog FEL QT 1846. I understand I can use the power beyond port from the FEL control valve to setup my remotes. I have searched and read many post but have a few unanswered questions.

1. Do I have to change the fitting in the picture to activate the power beyond feature? I spoke with a guy at Bush Hog who was very vague on how to hook this up.

Possibly, but answer this first-How many hoses do you have connected to the valve...6 or 7?

2. Will a standard log splitter open center valve work with this setup?

Most likely-but need answer to #1 to verify...

3. Where do I connect the return line?

You can Tee into the existing return line from the loader valve.

4. When the lines are not being used, do I need to hook them to each other to form a loop?

Yes-absolutely.

 

[kennyd]

This is going to power a wood splitter and maybe a few more implements. I am having problems locating the PB sleeve for the Bush Hog FEL. On the return line, can I use a T at the return where the FEL connects to the main tractor return?

Just to expand a little...IF you have seven hoses on your FEL valve now-then there is already a PB sleeve in the valve. This line problem connects to the rear tranny and feeds the 3PH. You would take a hose from the PB port to the IN port of the new valve, then the PB port of the new valve back to the tranny to feed the 3PH. The OUT of the new valve can be Tee'd to the OUT of the existing valve.

For a logsplitter, you would just "plug" it in series with the PB line (using QD's) after the new valve...

 

[FixableUnknown]

I have 6 lines going to my valve. I have a Walvoil SDM102

 

[kennyd]

I have 6 lines going to my valve. I have a Walvoil SDM102

That stinks! Then you will need to find the PB sleeve to fit that valve if one is available.

 

[FixableUnknown]

Thanks for the info. I am almost to the point of buying a pto pump.

 

[Ductape]

Why couldn't he use the out off the loader valve into the new valve (or PB quick connects at the rear) , as long as he wasn't using the loader at the same time?

 

[FixableUnknown]

If that would work it would be great. I don't intend on using the loader while splitting. So I would just put a quick connect at the return line and when I connect the wood splitter I break the QD and run one side to the splitter valve and then from the valve to the other side of the QD?

 

[kennyd]

Why couldn't he use the out off the loader valve into the new valve (or PB quick connects at the rear) , as long as he wasn't using the loader at the same time?

If that would work it would be great. I don't intend on using the loader while splitting. So I would just put a quick connect at the return line and when I connect the wood splitter I break the QD and run one side to the splitter valve and then from the valve to the other side of the QD?

That will work-It is not the best way to do it-but acceptable if you cannot locate the PB sleeve.

 

[Ductape]

When I put the loader on my Yanmar, it was a factory one with PB. But it seems I recall several of the aftermarket loader manufacturers advising to cut the main (steel) hydraulic line coming off the pump and basically splicing in their loader valve. I don't recall them having a PB port, so coming off the 'out' line was the only way to add anything (and obviously how the 3pt was run). Just thinking aloud here...............

 

[FixableUnknown]

Well I am headed to TSC and Napa to pick up the fittings. Thanks guys for all your help. I will let you know how it turns out.
Thanks, Chris

 

[Ductape]

Take us some pictures when you do the install so we can see how it comes out.



Oh, and P.S. On my Yanmar, if the tractor was started with the quick connects at the rear NOT connected to anything (deadheading the hydraulic pump), it would either a) destroy the hydraulic pump (worst case scenario) or B) shear the key on the pumpshaft. It was not like my Kubota where it just trips the relief valve. Be mindful of this when you add the outlets to the rear, and also keep this in mind should you ever 'loan out' your tractor. The average non-tractor civilian won't understand the consequences of deadheading the pump.

 

[J_J]

That is the reason for the short jumper hose to connect the QD's together in case you accidentally hit the levers.

Another note of interest. Sometime back, I read an article that mentioned something about the return port was never intended to be used as a high pressure port, and the valves were not made very thick in that area, where as the PB port was designed to handle the pressure. Someone on here said something about a valve bursting, anybody know if it was in the area of the return port.

 

[FixableUnknown]

It works! I have been splitting wood for the last couple of hours with no problems. I hooked it up like Ductape said. The high pressure line was already split due to my FEL. I found the line that exits the loader control that goes back into the high pressure line going to the 3 point. I put a QD on this line and connected it to the in port on the wood splitter valve and the out port line went back to the original spot where the loader valve connected to the high pressure line for the 3 point. Everything still works like it did before. Thanks guys for all your help.

 

[Ductape]

Good deal ! Just keep in mind ..... never start the tractor with those quick connects not connected to something, or each other.

Happy splitting !!!

 

[kennyd]

It works! I have been splitting wood for the last couple of hours with no problems. I hooked it up like Ductape said. The high pressure line was already split due to my FEL. I found the line that exits the loader control that goes back into the high pressure line going to the 3 point. I put a QD on this line and connected it to the in port on the wood splitter valve and the out port line went back to the original spot where the loader valve connected to the high pressure line for the 3 point. Everything still works like it did before. Thanks guys for all your help.

Good news...Glad to help.

 

[MJPetersen]

I read an article that mentioned something about the return port was never intended to be used as a high pressure port, and the valves were not made very thick in that area, where as the PB port was designed to handle the pressure. Someone on here said something about a valve bursting, anybody know if it was in the area of the return port.

I do not know the thread that you are mentioning JJ, but I do know that most hyd valves are not intended to have more than about 500 psi on the return side. Many loaders are plumbed incorrectly with the return port being used as a PB port. However, if you put full pressure on the return side it is possible to blow out the o-ring on the return end of the spool. A loader valve, to be plumbed correctly should have 7 lines. 4 work ports, return, power in and power beyond to the next control valve. Technically I guess that you could legitimately have 6 hoses--4 work, power in and return to tank. But then there is no power beyond.

Mike