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JLG boom moves itself

Discussion in 'Other Construction/Demolition Equipment' started by StartUp, Feb 8, 2020.

  1. StartUp

    StartUp New Member

    Joined:
    Feb 8, 2020
    Messages:
    1
    Location:
    Toronto
    JLG boom ( 2012 600AJ) moves itself: operator in the basket, engine on, pedal on, drive joystick pushed towards the operator - boom starts moving ok, operator released joystick - boom moves opposite direction ( boom moves itself without operator touching the joystick). Any ideas?

    Video Link: https://photos.app.goo.gl/oUNjbqajaYPFv4ky7
     
  2. Bls repair

    Bls repair Senior Member

    Joined:
    Jan 21, 2017
    Messages:
    1,081
    Occupation:
    Equipment operator,mechanic
    Location:
    S E Pa
    Sounds like some type of return to neutral lock problem.