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Telehandler brakes grabbing

Discussion in 'Forklifts/Telehandlers' started by barklee, Jun 9, 2017.

  1. barklee

    barklee Senior Member

    Joined:
    Aug 4, 2009
    Messages:
    903
    Location:
    ohio
    Hi All
    Hoping to see where i should start with our Lull 1044c-54. The brakes are grabbing pretty bad and its making it difficult if not unsafe to operate. Is there a procedure for adjusting the brakes or are the wearable parts just shot would you say? This is a 2009 model with 5600 hours.
    I have seen other posts online where flushing out the rear end may help. Should i start there would you say?
    Thanks
     
  2. 92U 3406

    92U 3406 Senior Member

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    Check on JLG website. I recall they have some Lull manuals on there.

    Do the brakes chatter or growl? There could possibly be a friction modifier that needs to be added to the oil.
     
  3. barklee

    barklee Senior Member

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    ohio
    Not making any noises I can hear.
    Couldn't find anything on jlgs website. It says refer to zf manual which I don't have and can't find online.
     
  4. Knepptune

    Knepptune Senior Member

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    Indiana
    I don't know if this is relevant but if the accumulator is bad that'll make the brakes act funny. When you push the brakes there's nothing, nothing, face through the windshield. I don't know if that's what you have going on but that's what a bad accumulator will do.
     
  5. DARO

    DARO Well-Known Member

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    Occupation:
    Mechanic
    Location:
    Duluth MN USA
    Start with additive for disc brakes. If there is none in there it will get graby.
     
  6. barklee

    barklee Senior Member

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    Accumulator makes sense. I'll check the pressure.
     
  7. skata

    skata Senior Member

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    Location:
    midwest
    are the brakes on a lull internal inside the axle?
     
  8. usmcmurillo20

    usmcmurillo20 Member

    Joined:
    Sep 29, 2015
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    Occupation:
    Mechanic
    Location:
    Altoona
    First things first check brake pressure. Takes hydraulic pressure to release the brakes if your on the low side your brakes aren't going to go off fully when you release the park brake.
     
  9. tool_king

    tool_king Senior Member

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    Occupation:
    road mechanic owner
    Location:
    new jersey
    barklee what is your email address ?If you like I can send you the ZF axle manuals .