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  1. #1
    J_J
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    Power-Trac 1445, KUBOTA B-9200HST

    Default Third function valve verses a diverter valve.

    A third function valve will allow one to raise/lower, dump/curl, and open/close your bucket all at the same time. It gets its hyd flow from the PB port of the FEL valve. It could be electric or manual, usually located close to the operator.

    http://www.wrlonginc.com/Hyd%20DO3B%...%20Diagram.pdf

    A diverter valve does just that, when activated, it diverts the fluid from the curl circuit to operate the grapple. Releasing the switch returns the flow to the curl function. This can be done with a single solenoid or a dual solenoid.
    When practical, the valve is located in the most inconspicuous and protected area.

    Single solenoid:

    https://www.surpluscenter.com/item.a...name=hydraulic

    Select Instructions.

    Dual solenoid.

    https://www.surpluscenter.com/item.a...name=hydraulic

    https://www.surpluscenter.com/Instruct/I9-5117-A.pdf
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  2. #2
    New Member
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    Dec 2010
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    Tractor
    Kubota 5240

    Default Re: Third function valve verses a diverter valve.

    Good description. I'm leaning toward a 3rd function for a root grapple, but it will cost $1400 (out the door) for the kubota dealer to do it. Assuming I'm somewhere in the middle of the bell curve in terms of mechanical competence, and that I have access to all of the tools I would need, what do you think is the probability that I could install this myself?

    You seem to know this stuff, I'd appreciate your thoughts.

    Nate

  3. #3
    Platinum Member rjkobbeman's Avatar
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    Kubota M8540HD-12 2010

    Default Re: Third function valve verses a diverter valve.

    I installed my 3rd function valve myself. It was a piece of cake. I would think as long as there is a 3rd function valve designed for your tractor and no "creativity" is required, the installation is pretty straight forward.

    I am quite mechanically competent, however this is my first tractor. It was pretty easy to do.
    Kubota M8540HD12-1 (2010), R4s with 3 Sets of Weights, 2 Remotes (SCD & FD), Rear Work Light and Down Exhaust
    Kubota LA1353 FEL with QA 72" Bucket, Self Leveling Valve and 3rd Function Remote
    CCM Category II Hydraulic Toplink with Flow Restrictors
    Kubota QA 48" Pallet Forks
    Kubota M8180 Ballast Box filled with concrete (1,800 lb)
    Land Pride QH-20 Quick Hitch
    Land Pride RCR2672 6' Rotary Cutter
    Land Pride GS2596 8' Grading Scraper
    BAC Industries BG-10 Post/Tree Puller


  4. #4
    J_J
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    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: Third function valve verses a diverter valve.

    Quote Originally Posted by ComeBye View Post
    Good description. I'm leaning toward a 3rd function for a root grapple, but it will cost $1400 (out the door) for the kubota dealer to do it. Assuming I'm somewhere in the middle of the bell curve in terms of mechanical competence, and that I have access to all of the tools I would need, what do you think is the probability that I could install this myself?

    You seem to know this stuff, I'd appreciate your thoughts.

    Nate
    There is no reason you you could not install a valve if you follow the rules. All valves in series, correct fittings and hoses. You need to choose manual or electric valve. You could scrounge the parts from wherever.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  5. #5
    New Member
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    Kubota 5240

    Default Re: Third function valve verses a diverter valve.

    Thanks, J.J.

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