CD 102 6c compressor air problem

Discussion in 'Heidelberg Printing Presses' started by Waldos1, Apr 15, 2020.

  1. Waldos1

    Waldos1 Member

    Joined:
    Jan 2017
    Messages:
    12
    Location:
    Memphis,Tn
    The compressor seems to be working. It builds pressure. When released to the press it quickly loses pressure. There are no leaks except the valve box on OS access on each unit. When valve boxes are resupplied individually it holds. Extra kicker it only leaks on the last 4 units and not the first two.
     
  2. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,601
    Location:
    Managua,Nicaragua
    Hi sir:

    If I can understand well, you say has Leaks in the las 4 units? if this true, please Review
    the Pneumatics:

    1) Test the Valve assembly - printing unit ( in the each- last 4 units has you mention) in O.S

    2) Test Valve assembly - pressure intensifier( in the each - last 4 units) O.S

    3)..3Y12 Impression on/off step 1 +..3Y48 Impression on/off step 2( in the each -last 4 units) O.S
    4y12 +4y48
    5y12 +5y48
    6y12 +6y48 ...................................................................................................

    Finally look, for any clamp, hose, or tube, leaking, faulty, O-rings, faulty, retainer, Spring.or defective

    Valve completely.

    Blessing.
     
  3. junker1984

    junker1984 Senior Member

    Joined:
    Jan 2010
    Messages:
    768
    Location:
    US, Midwest
    Is this equipped with the Atlas Copco or Heidelberg AirStar? What model year? When you open OS cover, the air you hear leaking is on the bank of valves? Is your air dryer working?
     
  4. Mathew

    Mathew Senior Member

    Joined:
    Apr 2010
    Messages:
    325
    Location:
    Kolding-Denmark
    Hi,
    I assume the press has been standing still for while and some of the solenoid valves and pneumatic cylinders are stuck in the middle of struck. Try to engage and disengage all the solenoid valves from last two units by pressing the button on them. It may help.

    Good luck
     
  5. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,601
    Location:
    Managua,Nicaragua
    Did you test it??
    the Pneumatics:

    1) Test the Valve assembly - printing unit ( in the each- last 4 units has you mention) in O.S

    2) Test Valve assembly - pressure intensifier( in the each - last 4 units) O.S

    3)..3Y12 Impression on/off step 1 +..3Y48 Impression on/off step 2( in the each -last 4 units) O.S
    4y12 +4y48
    5y12 +5y48
    6y12 +6y48 ...................................................................................................

    Finally look, for any clamp, hose, or tube, leaking, faulty, O-rings, faulty, retainer, Spring.or defective

    Valve completely.

    Blessing.
     
  6. Waldos1

    Waldos1 Member

    Joined:
    Jan 2017
    Messages:
    12
    Location:
    Memphis,Tn
    Everything is working fine now. Seems to be valve's stuck open. I came back the next day. Plugged everything back up and it worked just fine.
     

  7. CHOCK

    CHOCK Senior Member

    Joined:
    Dec 2016
    Messages:
    1,601
    Location:
    Managua,Nicaragua
    OK, Great Job sir

    The "Common sense" is the tool best Invaluable.

    Blessing, let me know any question
     
Loading...