Ryobi 755P Problem / Advise

Discussion in '4-Color Offset Presses +' started by jdagher, Jul 9, 2008.

  1. jdagher

    jdagher New Member

    Joined:
    Jul 2008
    Messages:
    2
    Location:
    jacksonville Florida
    I have a 755P that is a 23x29 perfector for almost 1&1/2 years. We have not been able to print any perfecting job on it. At speed greater than 8,000 IPH the sheet will drop under the storage drum. Does any body have any comment on this or sujestions? We are looking for advise if any body use these machines at 15,000 in perfecting mode any where or any job. We could use an advise.
     
  2. somma

    somma Member

    Joined:
    Jun 2008
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    32
    Location:
    merlo - san luis - argentina
    Dear:

    If this machine works with vacuum air to hold the rear edge of the paper, check if you have a obstraction on insede the air pipes.

    regars
     
  3. jdagher

    jdagher New Member

    Joined:
    Jul 2008
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    Location:
    jacksonville Florida
    We did, and I assume that the ryobi engineers have looked into that.

    thank you,
     
  4. Bob the engineer

    Bob the engineer Member

    Joined:
    Aug 2010
    Messages:
    9
    Location:
    london uk
    You need to adjust the blow on the air curtain bars which support the sheet around the perfector drum. The taps x2 are on the operator side under foot plate that lifts up. Also make sure there are no kinks in the pipes from the pump for perfector. This is located under the walk way drive side near units 3/4. Make sure the pump is working as well. This should sort it.
     

  5. Kelsey Holt

    Kelsey Holt Member

    Joined:
    Nov 2017
    Messages:
    12
    Location:
    Nashville TN
    We have had the same issue. What bob said will help. This just started with our machine once it got some impressions on it.
     
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