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  1. #1
    Join Date
    May 2014
    Posts
    8

    Puma 250BX Turret timing

    I replaced the O-rings in the turret drive control valve, they were leaking and causing the turret to free wheel on tool change command, Now I'm having problems getting the turret timing right.
    The turret out/in switch is ok as well as the limit switch. When I do a manual tool change, the turret moves out, rotates to desired tool, moves back in to within almost 1/4" or just before it makes the turret close switch and stops............. Anyone have any ideas? Help is much appreciated.

  2. #2
    Join Date
    Feb 2013
    Posts
    796

    Re: Puma 250BX Turret timing

    See attached:

    Press E-stop and then see if you can tighten the lock nuts (NUT, LOCK - items 290&360) further.
    If the lock nuts are tightened while the hydraulics are active, a "tight feel" will not be tight enough.
    Attached Thumbnails Attached Thumbnails Puma 250 Hydraulic Turret Assembly.pdf  
    Doosan Service Technician
    [email protected] O:973-618-2461 M:973-803-9479

  3. #3
    Join Date
    May 2014
    Posts
    8

    Re: Puma 250BX Turret timing

    Thanks dhardt, problem sovled. We are back up and running smoothly.

  4. #4
    Join Date
    Feb 2013
    Posts
    796

    Re: Puma 250BX Turret timing

    For others that are reading this thread, looking for a solution to a similar issue...Was the problem resolved by the mentioned procedure, or was it something else?

    (Posting the resolution procedure here could benefit another user who is down.)
    Doosan Service Technician
    [email protected] O:973-618-2461 M:973-803-9479

  5. #5
    Join Date
    May 2014
    Posts
    8

    Re: Puma 250BX Turret timing

    Your suggestion solved the problem, Thanks again.

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