Kioti and Third Function Valve

[DeanFM]

I have a Kioti NX5510-HST. I had the dealer install a WR Long third function valve when it was purchased, but I am not sure it's plumbed correctly. My GL series Kubota could open/close the grapple simultaneously when curling the bucket on the FEL. But the Kioti is only one or the other. I'm not sure if that is as-designed, or if I have an incorrect install of the third function. I took a few pictures. Any thoughts? Red dotted line is going from the fel hydraulic block to the 3FV, and the return line appears to go up and behind the cab. Green dotted line is into the WR Long from the tractor source. -Dean

 

[murphy1244]

Bad advice.

 

[ritcheyvs]

Looks like third function valve to me. Without being able to see the two other hoses (probably behind hoses or sub-plate) and a having a diagram (or at least the markings) of the sub-plate ports, it's impossible to say from the photo. If the ports are labeled, the P port should connect to the power beyond port of the loader valve and the T port should go to the 3-point. The A and B ports go to your implement (grapple?).

This diagram should help.

 

[powerscol]

WR Long third function ...that rings a bell. There was another post on this recently where someone had issues too. Turned out it was plumbed wrong. Poor instructions? He had the dealer talk to the WR Long folks to figure it out. It was not over a month or so back either.

 

[countrybumpkin]

The hose coming from the loader valve is correct, can't tell if it enters the 3rd function block in the correct location or not though. As for being able to use the grapple and the loader at the same time , you have to feather the loader , if you have one of the loader valves completely open ( such as raising or lowering the loader arm or curling or dumping bucket, then no oil is going past the valve to feed the 3rd function.

 

[MtnViewRanch]

The hose coming from the loader valve is correct, can't tell if it enters the 3rd function block in the correct location or not though. As for being able to use the grapple and the loader at the same time , you have to feather the loader , if you have one of the loader valves completely open ( such as raising or lowering the loader arm or curling or dumping bucket, then no oil is going past the valve to feed the 3rd function.

My bet is that is what is happening here.

 

[DeanFM]

The hose coming from the loader valve is correct, can't tell if it enters the 3rd function block in the correct location or not though. As for being able to use the grapple and the loader at the same time , you have to feather the loader , if you have one of the loader valves completely open ( such as raising or lowering the loader arm or curling or dumping bucket, then no oil is going past the valve to feed the 3rd function.

I checked the WR Long diagram, and it does appear to be plumbed correctly, both from the Loader valve source and into the WR Long valve. I will try the feathering, and appreciate the suggestion. This has me curious, though... My Kubota GL could be raising the FEL, trimming the Grapple angle, and opening/closing the Grapple, all simultaneously. Same WR Long 3FV. The L3240 had about 13-GPM hydraulic flow, and the Kioti is rated higher at 17-GPM. So, either there is a difference in the design of the loader valves, or maybe I have a malfunctioning one?

 

[countrybumpkin]

I think its the design of the loader valve, it took me a while to get where i could operate both functions of the loader on my NX, my kubota seemed to be a bit easier.

 

[MtnViewRanch]

I checked the WR Long diagram, and it does appear to be plumbed correctly, both from the Loader valve source and into the WR Long valve. I will try the feathering, and appreciate the suggestion. This has me curious, though... My Kubota GL could be raising the FEL, trimming the Grapple angle, and opening/closing the Grapple, all simultaneously. Same WR Long 3FV. The L3240 had about 13-GPM hydraulic flow, and the Kioti is rated higher at 17-GPM. So, either there is a difference in the design of the loader valves, or maybe I have a malfunctioning one?

I think that typically Kubota has a better quality loader valve. The GPM that you are quoting is total flow, not implement flow. Both are a few (4-6) GPM less than what you are thinking.

 

[DeanFM]

Still trying to figure out the baseline of this problem. Are other NX or DK owners able to raise/lower the FEL while simultaneously trimming the bucket? Even while feathering, I cannot. It's one or the other, no matter what I do.

 

[MinnesotaEric]

Still trying to figure out the baseline of this problem. Are other NX or DK owners able to raise/lower the FEL while simultaneously trimming the bucket? Even while feathering, I cannot. It's one or the other, no matter what I do.

You need a piloted valve to run multiple functions at once.

 

[countrybumpkin]

On my nx I can raise/lower and curl/dump at the same time.

 

[sdef]

Still trying to figure out the baseline of this problem. Are other NX or DK owners able to raise/lower the FEL while simultaneously trimming the bucket? Even while feathering, I cannot. It's one or the other, no matter what I do.

I have a DK40 HST with the WR Long kit installed by my dealer and I can do one or the other- just like yours. I am used to it and it does not hamper my operation.

 

[Apsterbobed]

My DK40se is the same, I don't have 3rd function but it's almost impossible to keep forks level while raising them. It can be done but it is unbearably slow, you can only Crack the valve for each function otherwise one or the other functions will take over. It's faster to lift a few feet stop and level then repeat. it's the one thing I really don't like about this tractor, that and how slow the loader is. One of the reasons I chose the kioti was it had one of the highest flow pumps, apparently it has the fastest power steering not loader. My john deere 790 you could lift and curl and hold the valve full open on both functions and it would do both at the same time, same way with the new holland skid steer I run at work (pilot controls).

 

[Amvcane]

I do not have a third function valve on my CK35, loader only. Raising the arms and dumping the bucket at the same time is nearly impossible, but it can be done, painfully,painfully slow. Lowering the arms and curling the bucket, can be done simultaneously, fast and very fluid.

 

[Apsterbobed]

...but it can be done, painfully,painfully slow.

I know what you mean! But if that's not irritating enough jump in a skidsteer then back on the tractor! I know that skidsteers are purpose built for fast loader work but the tractor should be closer.

 

[DK35vince]

I do not have a third function valve on my CK35, loader only. Raising the arms and dumping the bucket at the same time is nearly impossible, but it can be done, painfully,painfully slow. Lowering the arms and curling the bucket, can be done simultaneously, fast and very fluid.

I don't have that problem with my DK 35.
Works fast and smooth. (KL1450 loader)

 

[Coyote machine]

I'm hearing 'piloted valve'; what is that exactly, and are they present on either the DK-40 series, or NX series Kiotis?

TIA,

CM

 

[vanguard]

and are they present on either the DK-40 series

I don't think so. My DK45SE acts just like yours.

 

[MinnesotaEric]

I'm hearing 'piloted valve'; what is that exactly, and are they present on either the DK-40 series, or NX series Kiotis?

TIA,

CM

Hydraulics go to the easiest place first. When a valve is open, all the fluid goes to the easiest ram to move first. In multivalve body that is piloted, the pilot regulates so that multiple functions get flow allowing multiple functions to work at once. My NX is not a piloted valve and any multiple functionality is controlled by the operator backing off the easiest moving ram, allowing fluid to flow to the second function that is also working.

How does a pilot valve work?