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650J Emergency Brake

Discussion in 'Dozers' started by John Deer, Nov 14, 2017.

  1. John Deer

    John Deer Well-Known Member

    Joined:
    Mar 6, 2012
    Messages:
    62
    Location:
    Llano County, Texas
    My 650J emergency brake has unexpectedly locked on two occasions without my engaging the lever. After turning the engine off for a few minutes and restarting the dozer, the brake will release. Has anyone experienced this? If so how did you fix it?
     
  2. Ronsii

    Ronsii Senior Member

    Joined:
    Jun 26, 2011
    Messages:
    584
    Occupation:
    s/e Heavy equipment operator
    Location:
    Western Washington
    What if any codes are showing?
     
  3. John Deer

    John Deer Well-Known Member

    Joined:
    Mar 6, 2012
    Messages:
    62
    Location:
    Llano County, Texas
    I don’t recall the code number, but it indicated a fault with the emergency brake solenoid or harness. This is confusing because of the intermittent and short duration of the problem. I am out of town now and don’t have access to the machine. I will confirm the exact code tomorrow.
     
  4. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    2,387
    Occupation:
    Retired
    Location:
    Hermann, Missouri
    Start looking for bare wire, chafed or mouse chew, maybe a bad ground first.