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  1. #1
    New Member
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    Dec 2012
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    Bridgton
    Tractor
    Case 580c

    Default 580c dipper/boom controls

    I just bought a 580c case backhoe and I was using it to demo a boat on my property. when I was cleaning up I noticed that when I used the dipper and boom at the same time both would stop working. I know I'm a little low on hydraulic fluid. But I didn't think that would cause my boom and dipper not to work together.

  2. #2
    Veteran Member
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    Jan 2009
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    2,390
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    Carroll, Ohio
    Tractor
    IH Farmall 656 gas/ IH 240 Utility/ 2, Super C Farmalls/ 2, Farmall A's/ Farmall BN/McCormick-Deering OS-6/McCormick-Deering O-4/ '36 Farmall F-12/ 480 Case hoe. '65 Ford 2000 3 cyl., 4 spd. w/3 spd Aux. Trans

    Default Re: 580c dipper/boom controls

    At what RPM..?? It at near an idle, you'll have to bump it up some. My 480C works best at about 1200 - 1500+ RPM's for multi-functions.

  3. #3
    Super Star Member J_J's Avatar
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    Sep 2003
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    18,237
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    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: 580c dipper/boom controls

    A gear pump is going to pump something if there is fluid at the suction inlet.

    Even at idle, you should have some movement of the cyl.

    Your speed of operation is determined by the GPM's flowing through the BH.

    Is your pump matched up to the capabilities of the BH.
    Last edited by J_J; 02-07-2013 at 02:43 PM.
    J.J.

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

    Git er done.

  4. #4
    Veteran Member
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    Carroll, Ohio
    Tractor
    IH Farmall 656 gas/ IH 240 Utility/ 2, Super C Farmalls/ 2, Farmall A's/ Farmall BN/McCormick-Deering OS-6/McCormick-Deering O-4/ '36 Farmall F-12/ 480 Case hoe. '65 Ford 2000 3 cyl., 4 spd. w/3 spd Aux. Trans

    Default Re: 580c dipper/boom controls

    Even when new, that era Case hoe's weren't known for their hydraulics. We had 6 new ones across the district, and 2 Ford 550's. The Ford's would out perform them hands down...

    They will move, but slow. And given the amount of wear over the years makes it worse. Of course, partially plugged filter screens, and cold oil don't help.

  5. #5
    New Member
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    Dec 2012
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    Location
    Bridgton
    Tractor
    Case 580c

    Default Re: 580c dipper/boom controls

    My tack dosn't work but if I had to guess I run it around 1,500 rpm.

  6. #6
    New Member
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    Dec 2012
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    10
    Location
    Bridgton
    Tractor
    Case 580c

    Default Re: 580c dipper/boom controls

    I'm planning on doing a full fluid/filter change when it starts to warm up.

  7. #7
    Veteran Member
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    Nov 2012
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    mansfield,Il
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    john deere

    Default Re: 580c dipper/boom controls

    I had a relief valve sticking open on an E , same symptoms .

  8. #8
    New Member
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    Dec 2012
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    Bridgton
    Tractor
    Case 580c

    Default Re: 580c dipper/boom controls

    How do I check the relief valve?

  9. #9
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
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    18,237
    Location
    JACKSONVILLE, FL
    Tractor
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: 580c dipper/boom controls

    Use a 3000 psi hyd gage and plug it into a QD and activate the lever to provide fluid.

    If the relief is good, you will see the relief pressure on the gage and hear the relief valve releasing fluid.

    If you get no or very little pressure by moving the valve levers, then the fluid is going somewhere.
    J.J.

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

    Git er done.

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