Roland 308 CPL problems

Discussion in 'Man Roland Printing Presses' started by mechanic41, Apr 23, 2020.

  1. mechanic41

    mechanic41 Member

    Joined:
    Jan 2011
    Messages:
    9
    Location:
    Brasov, Romania
    Hello,
    At a Roland 308, the error 74 is shown quite often, sometimes at the plate insertion, sometimes when they are removed. The error always shows at different units.
    Is there someone who could advise me on this or whom has encountered this error previously?
    Also, the CPL systems have been cleaned and oiled.
    There was also a recalibration done with the Service Tools floppy disk.
    Could the potentiometers be at fault?
    Additionally, I have tightened the bars with 600-800 mA, otherwise the errors are much more frequent.
     
  2. drukman

    drukman Senior Member

    Joined:
    Mar 2016
    Messages:
    307
    Location:
    Bulgaria
    Error 74 is a positioning error. It can also be indicated by a defective potentiometer. Тhe motor current must be 950-1100mA
     
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