Problem with 3rd rear hydraulic remote

[Husaberger]

I purchased my tractor with 2 rear remotes and they have worked flawlessly
I recently added the third remote valve from Kubota myself
It works fine in one direction but only very weakly in the the other
The lever/valve action appears normal
I have dissembled the kit and checked to make there is nothing blocking the flow of hydraulic fluid and there is not
O rings are all in place
Any ideas/recommendations?

 

[/pine]

did you plumb the PB port of the 2 existing remote valve into the pressure port of the new valve?

You might get more responses in the hydraulic forum...

 

[Husaberger]

The 3rd remote valve piggy backs onto the 2 existing valves

 

[ericm979]

Are you mixing quick connect types (poppet and ball)? Sometimes that does not go well.

 

[Husaberger]

Are you mixing quick connect types (poppet and ball)? Sometimes that does not go well.

I do have implements with both types but it is consistently weak with all in one direction
The other direction is fine

 

[Scook222]

Depending on the tractor, it could be a linkage issue only letting one side of the valve completely open all the way and need adjusted more.I had the nuts slide of the bracket in the cab of the 7040 and it would operate one way fine and slow the other. I had to readjust the lock nuts to re-center the handle for it to fully open all the way. If it’s not that it could be the tractor side coupler the ball could be stuck on it. If you swap couplers on the valve block and it operates slow the other way, the ball is stuck on the tractor side quick connect.

 

[tylerpittson]

I purchased my tractor with 2 rear remotes and they have worked flawlessly
I recently added the third remote valve from Kubota myself
It works fine in one direction but only very weakly in the the other
The lever/valve action appears normal
I have dissembled the kit and checked to make there is nothing blocking the flow of hydraulic fluid and there is not
O rings are all in place
Any ideas/recommendations?

You might have ordered a single acting valve. If the valve has a little lever on the opposite side of the spool that might need to be flipped the other way to allow double acting function.

Without knowing what Tractor you have and which valve was purchased it is difficult to know what is happening.

 

[Husaberger]

Depending on the tractor, it could be a linkage issue only letting one side of the valve completely open all the way and need adjusted more.I had the nuts slide of the bracket in the cab of the 7040 and it would operate one way fine and slow the other. I had to readjust the lock nuts to re-center the handle for it to fully open all the way. If it’s not that it could be the tractor side coupler the ball could be stuck on it. If you swap couplers on the valve block and it operates slow the other way, the ball is stuck on the tractor side quick connect.

I don't think there is any way to adjust the valve but I will take a closer look because what you wrote makes sense
I also might try swapping the couplers
Thank you for your suggestions

 

[Husaberger]

You might have ordered a single acting valve. If the valve has a little lever on the opposite side of the spool that might need to be flipped the other way to allow double acting function.

Without knowing what Tractor you have and which valve was purchased it is difficult to know what is happening.

It's an L4740 and yes I do have the correct part
It is identical to the two that were installed at the factory

 

[ovrszd]

It's a float valve?

Shouldn't be an SCV.

Maybe unhook the lever cable and operate the valve by hand and check results?

 

[ovrszd]

Forgot one other thing. You added the third valve to the top of the stack?

 

[GreenMtns]

I'm having the same problem. The new spool was added to the stack on the last side. Not he first but after the installed spools. No flow through the spools at all. Removed the new spool and everything works fine. Should the new spool be the first in line?

 

[ovrszd]

Totally depends on type of spools in the stack. Sounds like your new spool needs to be first.

 

[GreenMtns]

Totally depends on type of spools in the stack. Sounds like your new spool needs to be first.

Spools are open center stacking spools. I would not think it should make a difference which order they are stacked in since when they are all in neutral there should be flow through the spools. In my case there is not flow at all. But removing just the new spool results in a flow.

These spools are Kubota spools. The new one is a BL7373.

 

[/pine]

Wondering if there may be a PB plug installed ?

 

[Scook222]

GreenMtns, I haven’t installed mine yet so it was easy to take pics and describe what I saw. the valve with the long hex bolt in the pic is a bl7373 detent valve. The one with the handle is the standard spring center valve. On the 5 ports that have fluid go through them, I can see daylight through everyone but the middle hole with them being in the centered/ neutral position. The standard valve is the same way. I was wondering if yours looked the same or if something was blocking one of the ports. If you can’t there is something blocking the port making it and the other 2 valves not work. It could be an o-ring on the internal rod that goes through the 5 ports. If you need me to look at anything else on the valve bodies, just let me know

 

[Henro]

I have been following this thread when I stop buy which is not every day, so I might have missed it, but is there a reason you are not contacting the supplier of the valve section, and telling them you want to return the section because it does not work?

Maybe if you do so they may have some suggestions...if not, return it and do what next? Not sure about that part...

When I put 4 rear remotes on my tractor I did not consider which order they might need to be in, and they work fine. Don't expect luck was in my favor. Seems like that is the way it should be.

 

[GreenMtns]

I just checked the spool and it is like you said. In the neutral position you can just see daylight in all but the middle port. So I do not know why this spool just screws up the system when installed. Remove it and all's well.
Since all spools show like that in neutral it should not make any difference in the order they are stacked I would think. I neutral the oil should flow right through them in any order.

 

[GreenMtns]

I have been following this thread when I stop buy which is not every day, so I might have missed it, but is there a reason you are not contacting the supplier of the valve section, and telling them you want to return the section because it does not work?

Maybe if you do so they may have some suggestions...if not, return it and do what next? Not sure about that part...

When I put 4 rear remotes on my tractor I did not consider which order they might need to be in, and they work fine. Don't expect luck was in my favor. Seems like that is the way it should be.

Hi Henro

It is going back for this reason and that BL7373 is a Detent Valve (Not Self Canceling) which is not what I need because I do not run wood spliters or other implements that need a constant flow of fluid.

Thanks for the chatch.

 

[Henro]

Hi Henro

It is going back for this reason and that BL7373 is a Detent Valve (Not Self Canceling) which is not what I need because I do not run wood spliters or other implements that need a constant flow of fluid.

Thanks for the chatch.

You just added a word to my limited vocabulary! :laughing:

Chatch definition by Urban Dictionary:

One who views one's self or self worth more than it actually is in reality.
One that tends to TRY and dress trendy or hip but just can't pull it off.
One whose style does not equal their confidence.