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  1. #1
    New Member
    Join Date
    Oct 2010
    Posts
    1
    Tractor
    Kubota L3250DT

    Default Kubota L3250DT

    Hello all, I am trying to figure out how to hook up hydraulics to the rear of my L3250DT kubota tractor. I have also recently purchased a Puma/Hardy 8st backhoe. I am in need of advice on how to build a sub-frame for the hoe and how build the rear hydraulic hook ups for this tractor. ANY help will be greatly appreciated.

  2. #2
    Silver Member
    Join Date
    Aug 2009
    Posts
    195
    Location
    Port Orchard, WA
    Tractor
    Kubota L4310 GST;Case 580 CK (1968)

    Default Re: Kubota L3250DT

    There is a great thread on build it yourself backhoe subframe in the "built-it-yourself" part of the forum. There are several threads on installing rear remotes on the "hydraulics" forum and the "kubota owing and operating" forum.

    I think you will find these very useful. May not answer all your questions but will provide a great starting point.

    Do you have an FEL and does it have a PB or power beyond port on the control valve? If so you have a great start for the rear remote install.
    Cycle_Gator,
    Port Orchard, WA
    Kubota L4310 GST

  3. #3
    Veteran Member Jay4200's Avatar
    Join Date
    Nov 2005
    Posts
    1,803
    Location
    Hudson/Weare, NH
    Tractor
    L4200GST w/ LA680 & BX2200D w/ LA211

    Default Re: Kubota L3250DT

    Quote Originally Posted by Shack1 View Post
    Hello all, I am trying to figure out how to hook up hydraulics to the rear of my L3250DT kubota tractor. I have also recently purchased a Puma/Hardy 8st backhoe. I am in need of advice on how to build a sub-frame for the hoe and how build the rear hydraulic hook ups for this tractor. ANY help will be greatly appreciated.
    My Kubota has two hoses going from the loader PB port (one or the other is connected using QCs). One goes to the 3pt hitch (IN port on tractor block), the other goes to the back of the tractor, where it is mounted with a female quick connect. There is a second connector/line that goes from the back of the tractor to the TANK port (via Tee - the other is from the loader OUT port). My backhoe plugs into those two rear QCs, so one is PB from loader, the other TANK (sump/return). The 3pt is disabled when the backhoe is connected. When the backhoe is not connected, the QC at the loader is swapped, so the loader PB drives the 3pt, and the rear connectors do nothing (the PB hose is disconnected at the loader, and the other still goes to TANK).

    Follow?

    JayC

  4. #4
    Silver Member
    Join Date
    Aug 2009
    Posts
    195
    Location
    Port Orchard, WA
    Tractor
    Kubota L4310 GST;Case 580 CK (1968)

    Default Re: Kubota L3250DT

    Yes, very similar to my set up. I assume you want to run the 3 of and the rear remotes atthe same time? If so, you need to put your RR valve in series with the three point. RR valve also needs PB which will go to the HP portof the 3 pt. Return for the RR valve can be tied, with a tee, into the tank return port. If you wanted you get a selector valve to attach to the PB with one line to the 3 pt HP in and the other port to the rear QC for the backhoe. This would eliminate the double hose set up from your FEL valve PB port.

    The return lines can stay connected together all the time. I will be installing a nearly identical plumbers nightmare on my L4310 this winter. I have most of the parts now, just need to get my machine closer to home.

    Did you find the thread on the do it yourself subframe? There is a whole lot of great info there on design and fabrication considerations.
    Cycle_Gator,
    Port Orchard, WA
    Kubota L4310 GST

  5. #5
    New Member
    Join Date
    Oct 2012
    Posts
    2
    Location
    Hyde Park, Vermont
    Tractor
    Kubota L3250DT

    Default Re: Kubota L3250DT

    Hello, this is Shack1 and I wanted to thank everyone for their help on resolving this issue! I have my backhoe all hooked up and have been using it. Works great! It took me awhile to get the power beyond plumbed but I did it. After this exsperance I consider myself well educated in hydraulics.

  6. #6
    Super Star Member murphy1244's Avatar
    Join Date
    Nov 2011
    Posts
    17,258
    Location
    Ohio
    Tractor
    Kioti DK-40, MF-135, Ventrac 4500Y

    Default Re: Kubota L3250DT

    Quote Originally Posted by Big Brian View Post
    Hello, this is Shack1 and I wanted to thank everyone for their help on resolving this issue! I have my backhoe all hooked up and have been using it. Works great! It took me awhile to get the power beyond plumbed but I did it. After this exsperance I consider myself well educated in hydraulics.
    Good job!
    Murph ------------

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