Diverter to 3rd function

jcummins · Jul 13, 2014

After a couple of days using a grapple with a diverter setup on my M7040, I'm considering going to a 3rd function. The diverter works, but, for me I have to be very deliberate with how I use the button/joystick, and it slows things down. I should live with it, but I've got a lot more grapple work to do, and want it to operate different. I may sell the diverter valve, but I may also plumb it into the 2 rear remotes I have, adding a third remote, especially since I have both tied up with a TNT setup. I don't need a third valve now, but .... I may in the future.

To go with a 3rd function I need to understand a few things. Research over the internet shows some have cut into their high pressure line, added adapters to both ends, then plumb in the manifold...in line with this pressure line. I take it, for tractors with power beyond, you accomplish the same thing, but simply plumbing in a line to the power beyond, and from the outlet of the manifold, return the flow to the return port.

Below is two pictures of the M7040 FEL loader valve. Can anyone tell me which is the power beyond, and which is the return port. What type of adapter screws into both of these ports. If I take any of the caps off these ports with the tractor not running, do I have any fluid issues other than incidental at the port? First picture is from the side. The second is from the front with three caps. All three caps are different....why is that?

J_J · Jul 13, 2014

I only see six hoses, perhaps one is hidden.

A FEL valve setup usually has seven hoses.

The PB port may be marked with the letters PB, PBY, BY.

PB port is usually in the center of the side of the valve, but could be located elsewhere.

If you do find the PB outlet, that hose goes to the IN port of the 3rd function valve, and the OUT goes to the remote or 3pt.

You can use both valves at the same time if you only use half lever on the FEL, as that will allow some pump flow to pass downstream for the 3rd function valve.

If you push the FEL lever all the way, you will have no flow downstream until the lever is released.

jcummins · Jul 13, 2014

Before I posted, I read everything I could find about power beyond, and even watched some videos. Everything talks in general terms. I had read that the power beyond would be labeled PB.....I can find any mark of PB anywhere. So if I'm going to do this 3rd function, unscrewing caps to a port that I don't know what it is....ain't going to work. Can't deal in general terms at this point.

The four hoses in the middle are obviously to the loader, labeled 1A 1B 2A 2B....the hose below those four is labeled 8Y. That hose and the one above the loader hoses got back to a squared box, and think this feeds the rear remotes. Here is a closer picture of the bottom hose. Right above that bottom hose, it does have a cap, that appears smaller than the opening that all the other hoses go to, but it is another 'orifice' that needs a label.

I took another picture (blurry) of the three caps on the end, no labels, other than the middle one has YW236 on the side of it. All the caps are shaped different, and no further labeling that I could find. I would think someone famaliar with this, could have a clue what to label these based upon the different size and shaped of the caps....has to be a reason for that. ALL of these capped spots, need a label. The 7th hose is besides the top cap, and is a metal line, appears to be a return line. It goes back a bit, then straight into the side of the tractor.

kennyd · Jul 13, 2014

Those "caps" are NOT what your looking for, two are the springs and detent's for the float and regen function, the small one with the nut is the PRV (pressure relief valve) I think.

Try to ID the hose coming from the pump going to the valve, that will be the one you need to add the subplate inline with.

J_J · Jul 13, 2014

Follow the pump out hose and see where it connects to the FEL valve

If you can id the IN port, you can add an air plug and feed the valve air for testing.

Only the PB will pass air when the lever is in the neutral position.

J_J · Jul 13, 2014

I believe your PB is labeled in green in post #3

Someone above said 8Y, but could be BY = beyond

jcummins · Jul 13, 2014

J_J said:
Your PB is labeled in green in post #3

It is stamped PB for all to see.

I see 8Y just a tick to the right of the green mark. I see no PB.

jcummins · Jul 13, 2014

The lower hose on the side with the green mark goes into this junction box, and is on the left. The hose above the fourn loader hoses goes to this same box, and is on the right. Metal lines looks to go to the rear remotes out of this box.

jcummins · Jul 13, 2014

kennyd said:
Those "caps" are NOT what your looking for, two are the springs and detent's for the float and regen function, the small one with the nut is the PRV (pressure relief valve) I think.

Try to ID the hose coming from the pump going to the valve, that will be the one you need to add the subplate inline with.

KennyD...this comment makes me wonder about the term power beyond PORT. Is power beyond simply a tie in to the power line that feeds the fel...or the rear remotes? There is a youtube video talking about doing that very thing. I thought that video pertained to tractors without a PORT. If so, the manifold install is exactly the same as the diveter install, except specifically on that 'fluid power' line. Am I making an sense.