Kubota Hydraulics

[davisgary2]

I am attaching a Fisher MM1 plow to my Kubota L3200. I am having trouble figuring out the hydraulics. I used the single acting cylinder on the plow and attached to my loader valve and it goes up and down fine. I attempted to connect the single acting angle cylinders to the ports on the loader valve and they fight each other. I have to disconnect one line and remove the quick connect fitting to relieve the pressure. Very little knowledge of hydraulics here I thought I would have problems with the up down not the left right. Any help would be appreciated.

 

[KyleH]

Are you trying to use single acting cylinders for the angle of the blade? And you mention using the loader valve to control it, you have the loader removed?

 

[davisgary2]

Yes the loader is removed and I am trying to use the single acting pistons 1 Right 1 Left on the plow.

 

[sidecarist]

The kubota loader valve has a regeneration circuit on the curl function. as far as I know there is no way to disable it. The regeneration circuit is incompatible with the single acting angle cylinders on the plow.

I had this problem and wound up adding a separate valve for the angle functions it was powered by the power beyond port. It's been 20 years since I did it, and no longer have the tractor...

Not much direct help I guess, but hopefully helps you save some troubleshooting time.

 

[davisgary2]

Thanks I remember reading about regeneration but forgot the terminology. Will give me another place to start looking.

 

[KyleH]

Adding a third function valve would allow you to control the cylinders, but it may be cheaper/easier to find a double acting cylinder to take the place of the two single acting cylinders.

 

[davisgary2]

Just started reading on the regeneration. Seems to be a lot of post that indicate that putting in a double acting cylinder may not solve the problem and the cylinder may act funny ???

 

[MtnViewRanch]

Use the up-down of the joystick for the left-right motion of the plow and use the left right motion of the joystick for the up-down motion of the plow. Be sure to use the right hand curl motion as the down motion of the plow. This is not intuitive, but it costs you nothing and everything will work.

 

[davisgary2]

I will try that tomorrow thanks will let you know if it works out.

 

[LD1]

Dont know if/when kubota changed valves, but....on my old L3400....which was the predecessor to the L3200.......there was a second detent position for the curl circuit. When pushing the joystick to the right to "dump" the first position you come to is regen. Keep pushing further right, and its no longer regen.

My new MX5100 is a regen only valve, and would not work with a plow (or my grapple diverted).

SO try pushing a little harder to the right. IT may just work. IF there is nothing there though......use up and down for the blade angle as mentioned. Will be awkward to use at first, but you should get used to it pretty quickly.