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Kubota kx61-2 hydraulic problem

Discussion in 'Compact Excavators' started by Kevin2466, Aug 15, 2022.

  1. Kevin2466

    Kevin2466 New Member

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    A71310E9-A6E0-4827-AECF-C4E31A4D6C24.jpeg I have an early 2000’s kx61-2. After sitting for a couple months I started it and the bucket curl doesn’t work, everything else works exactly like it’s supposed to. It has hydraulic pilot controls, I know very little about hydraulic controls, I would appreciate any direction on where/how to diagnose the problem
     
  2. uffex

    uffex Senior Member

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    Good day Kevin & welcome
    Can you operate the bucket cylinder in either direction?
    Kind regards
    Uffex
     
  3. Kevin2466

    Kevin2466 New Member

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    It doesn’t not work in other direction, when I push handle in either direction it gives no feedback. I pushed and held several minutes in both directions
     
  4. uffex

    uffex Senior Member

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    Good day Kevin
    The question is if the cylinder is at fault or the base machine, I am assuming this is a standard machine with no third party installations. If you are not sure, take some photos of the bucket lines and valve, post them here.
    See attached.
    Kind regards
    Uffex
     

    Attached Files:

  5. Kevin2466

    Kevin2466 New Member

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    Thank you for your response, I do not believe it is the cylinder as it is not getting on pressure to the cylinder lines. I believe it is me of the valves, but am unsure how to diagnose which
     
  6. uffex

    uffex Senior Member

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    Good day Kevin
    You have pressure in the cylinder lines when you operate the bucket means the cylinder is at fault. Are you just making a guess or do you have the possibility to measure?
    To trouble shoot hydraulics it is necessary to have a pressure measuring device be it a anologe - digital or adapted pressure sensor, if you prefer to guess most probably you will make considerable work for no result.
    Look hard at the cylinder for any damage > can you hear fluid by-passing the piston, such points are good indication of where the problem is at.
    Kind regards
    Uffex
     
  7. uffex

    uffex Senior Member

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    Ommited to Hydraulic schematic
    upload_2022-8-18_9-9-14.png