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6-way skid steer blade hydraulic hose connections won't connect

Discussion in 'Construction Equipment Attachments' started by ylekyote, Apr 26, 2016.

  1. ylekyote

    ylekyote Well-Known Member

    Joined:
    Feb 24, 2016
    Messages:
    46
    Location:
    CO
    I have a New Holland compact track loader with a CAT dozer blade I use with it sometimes. Today I went to connect and use blade and the 2 hoses from the blade won't press over and connect with the boom hoses. It's as if there is pressure in the boom side of the hoses and they wont let the blade hoses insert. I cycled machine on/off a few times and also moved and released the hydraulics but it didn't change anything.

    Has anyone had this happen before? The connections and blade worked just fine a couple of weeks ago.

    I was going to let it sit overnight and see if it works then. Maybe it will slowly bleed down over a few hours.

    I don't have a bleed down switch or anything like that on my New Holland. Thanks for the help if you may have a tip.
     
  2. willie59

    willie59 Super Moderator

    Joined:
    Dec 21, 2008
    Messages:
    11,919
    Occupation:
    Service Manager
    Location:
    Knoxville TN
    In most cases it's pressure on the attachment hoses. We come out of winter, spring gets here, temps warm up, oil in the attachment components expands, now you can't hook up the quick couplers. Typically cracking some lines on the attachment and relieving the pressure remedies the problem.
     
    cdm123 and Ronsii like this.
  3. jasona53

    jasona53 Active Member

    Joined:
    Jul 16, 2015
    Messages:
    25
    Location:
    salem sc
    Would you sell the dozer attachment
     
  4. ilovetracks

    ilovetracks Active Member

    Joined:
    Jun 22, 2017
    Messages:
    36
    Location:
    northeast GA
    my gyro trac, I have to loosen hydro couplings sometimes and clicks right up
     
  5. RTSmith

    RTSmith Senior Member

    Joined:
    Oct 23, 2008
    Messages:
    288
    Occupation:
    Not where it should be..!
    Location:
    Middle Tenn.
    On the NH, turn key on (don't start engine), cycle parking switch, so that everything is in normal operate mode, except engine isn't actually running. THen cycle the aux hyd back & forth a few times. This generally clears it up on my Cat. As everybody else has said, on the attachment crack hoses.
     
  6. Rob Gunn

    Rob Gunn Well-Known Member

    Joined:
    Mar 18, 2013
    Messages:
    67
    Location:
    Buchanan, MI
    My older Bobcat 630 I all ways keep a wrench in the cab so I could crack the coupling and relieve any presser. Very common on a lot of equipment.
     
  7. f311fr1

    f311fr1 Senior Member

    Joined:
    May 12, 2016
    Messages:
    440
    Location:
    Middle TN
    When you take the attachment off bleed the pressure off. ASV has a button, Cat and others have a deal where you push in the high flow couplers. After you disconnect hook the two attachment hoses together so that the thermal expansion equlizes through out the attachment hydraulic circuit