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  1. #1
    New Member watchdawg's Avatar
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    Default hydraulic connections for bh90

    Can someone post a picture of the setup for the rear hydraulic connections installed by the dealer for a bh90? My dealer installed one connection in the rear and ran a hydraulic line over the transaxle(under the seat). It would probably be neater if they had put 2 connectors and just capped them when the backhoe isn't connected. I'd post a pic but it's too dark and my camera isn't up to the challenge!

    It seems like a clunky layout, but I thought I'd check with the group.

    Thanks,
    Lorne
    L3940HST+, LA724, QA Bucket, R4's filled

  2. #2
    Bronze Member justcountry's Avatar
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    Aug 2007
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    56
    Location
    Bell , FL
    Tractor
    Kubota 3130

    Default Re: hydraulic connections for bh90

    I don't know if it's right or not, but thats the same setup I have. I believe its because all the fluid and valves that the backhoe uses. That big hose comes directly from the pump even before it goes into the loader. I think its designed to have priority over the loader. however, BE SURE TO ALWAYS have the 2 hoses plugged into eachother when the backhoe is not connected, otherwise the pump cannot circulate fluid and will do something bad very quickly. I thought I could use those lines as remotes for a grapple when the hoe is not on, but its easier to go with anelectric over hydraulic valve for that. If you do a search for grapples on here, you will see what i mean. take care

  3. #3
    New Member watchdawg's Avatar
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    Default Re: hydraulic connections for bh90

    Thank you for the reply. It sounds like this is a normal configuration.
    L3940HST+, LA724, QA Bucket, R4's filled

  4. #4
    Member
    Join Date
    Apr 2007
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    35
    Location
    North East Indiana
    Tractor
    Kubota L3830, Kubota B2620,Kubota RTV900

    Default Re: hydraulic connections for bh90

    Watchdawg,
    I just had a BH90 installed on my L3830, by the dealer. It sounds just like what you and "Justcountry" are talking about. One line connects to the block under the floorboard. The second line connects into the loader valve block. Both lines run under the floorboard, over the hyd. filter, then up over the rear axle to the back of the tractor.
    I haven't used it yet, but have already added a Bro-Tek thumb, and am ready for better weather so projects can be started.
    The dealer said to make sure both lines are connected together when the hoe is removed. He said failure to do this will kill the engine as soon as hyd pressure builds. He seemed to think some people learn by doing that.
    Before I brought the tractor home, I had the dealer go through the "take-off & install" one time -- that looks slick.
    I think you could use other Hyd attachments with those lines as long as they have their own valve like the backhoe --- example, Log Splitter, etc.
    Good luck and have fun.
    KW
    "Experience is what you get, when you don't get what you want"

  5. #5
    Super Member txdon's Avatar
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    Jul 2003
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    5,753
    Location
    central Texas, Lee County
    Tractor
    Kubota L5030 1947 Farmall A John Deere Z910

    Default Re: hydraulic connections for bh90

    Quote Originally Posted by watchdawg
    Can someone post a picture of the setup for the rear hydraulic connections installed by the dealer for a bh90?
    Yes I can.
    Attached Images Attached Images
    TXDon

  6. #6
    New Member watchdawg's Avatar
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    Nov 2007
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    18

    Default Re: hydraulic connections for bh90

    Thanks for the info and the picture.
    L3940HST+, LA724, QA Bucket, R4's filled

  7. #7
    RPK
    RPK is offline
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    Join Date
    Aug 2006
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    110
    Location
    Eastern CT
    Tractor
    Kubota L3130 Cub Cadet 1554

    Default Re: hydraulic connections for bh90

    My L3130 has a BH90 plumbed as you described. I know very little about hydraulics. I think this set up is called "power beyond"

    Two things I know for sure. Always have those two lines either plugged together or attached to the BH90 otherwise the pump will blow up.

    When the lines are attached to the BH or any other implement the three point hitch will not operate. This why I did not buy a 3pth log splitter. I would have had to install a rear remote to run the splitter ands till be able to raise the 3pth.
    RPK
    RPK

    L3130 LA723 BH90 Pallett Forks WR Long Grapple
    Cub Cadet 1554 w/triple bagger

  8. #8
    Bronze Member
    Join Date
    Jul 2003
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    67
    Location
    W. OR (Willamette Valley)
    Tractor
    Kubota L3430

    Default Re: hydraulic connections for bh90

    Quote Originally Posted by kwilson@omnicityusa.com
    Watchdawg,
    I just had a BH90 installed on my L3830, by the dealer. It sounds just like what you and "Justcountry" are talking about. One line connects to the block under the floorboard. The second line connects into the loader valve block. Both lines run under the floorboard, over the hyd. filter, then up over the rear axle to the back of the tractor.
    I haven't used it yet, but have already added a Bro-Tek thumb, and am ready for better weather so projects can be started.
    The dealer said to make sure both lines are connected together when the hoe is removed. He said failure to do this will kill the engine as soon as hyd pressure builds. He seemed to think some people learn by doing that.
    Before I brought the tractor home, I had the dealer go through the "take-off & install" one time -- that looks slick.
    I think you could use other Hyd attachments with those lines as long as they have their own valve like the backhoe --- example, Log Splitter, etc.
    Good luck and have fun.
    KW
    Please post more information about the Bro-Tek thumb for the BH90 including pictures if you have them. Is this a bolt on? Dealer installed? $$? Thanks.
    Greg

  9. #9
    Elite Member wushaw's Avatar
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    Mar 2005
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    3,075
    Location
    Bristol Texas
    Tractor
    Kubota L2800, 15 hp 372 Mitsubishi

    Default Re: hydraulic connections for bh90

    Quote Originally Posted by RPK
    My L3130 has a BH90 plumbed as you described. I know very little about hydraulics. I think this set up is called "power beyond"

    Two things I know for sure. Always have those two lines either plugged together or attached to the BH90 otherwise the pump will blow up.

    When the lines are attached to the BH or any other implement the three point hitch will not operate. This why I did not buy a 3pth log splitter. I would have had to install a rear remote to run the splitter ands till be able to raise the 3pth.
    RPK
    Your 3pt will still work if you are connected to BH or other implement since the fluid still has to go the same direction it did when connected to itself....tank, pump, FEL...etc.

  10. #10
    Member
    Join Date
    Apr 2007
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    35
    Location
    North East Indiana
    Tractor
    Kubota L3830, Kubota B2620,Kubota RTV900

    Default Re: hydraulic connections for bh90

    GV4OU
    Regarding the Bro-Tek Thumb.
    It is "bolt on", not welded.
    I purchased it on-line from Richard at Bro-Tek.
    Not dealer installed. I installed it.
    I traded emails with Richard before ordering. I believe they have built many for the smaller units, but just a few for the BH-90.
    It was easy to install, and fit perfectly.
    It is built strong and heavy. It was shipped directly to my home.
    It is painted kubota orange and came with everything needed -- bolts, washers, nuts, pins, and the upper-link for the open position.
    Total cost including delivery was $440.
    I have not used it yet, and only have one photo in the folded position.
    I have not posted any photos before, so hope this works.
    KW
    Attached Images Attached Images
    "Experience is what you get, when you don't get what you want"

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