Water dropping

Discussion in 'Heidelberg Printing Presses' started by Sunilvaryani, Oct 21, 2018.

  1. Sunilvaryani

    Sunilvaryani New Member

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    dear sir
    I have A sm 52 2 colours I’m new to offset
    My operator complains of too much water
    Coming from the press from the first unit
    We changed our alcohol quality too he says
    It’s the roller setting
    Pls advice
     
  2. junker1984

    junker1984 Senior Member

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    Is it more so on operator side than gear side? Check stability of operator side journal, pan roller. Common wear area.
     
  3. Sunilvaryani

    Sunilvaryani New Member

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    Ok will check n see
     
  4. asem alsafady

    asem alsafady Member

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    Dear Sunilvaryani,
    Is it a water dropping that you can see under the water pan, or you see too much water in the printed sheet without dropping?
     
  5. turbotom1052

    turbotom1052 Senior Member

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    If the water pan has neoprene rubber insulation, check to be sure the rubber is not seperating from the outside of the pan. When the rubber separates from the pan it tends to rub against the water vibrator roller. This rubbing has been known to cause water droplets to fall on the sheet on the larger speedmasters. You might also check for clearance between the pan and the above mentioned roller. On some speedmasters its easy to install the pan too far forward ,and cause clearance issues.
     
  6. Sunilvaryani

    Sunilvaryani New Member

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    The water is too much under the pan please
    Thanks
     
  7. Sunilvaryani

    Sunilvaryani New Member

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    The water pan is full of water within short time
    The operator has to stop remove the water pan full of water then continue again we have called the engineer to check the roller settings also it’s only in the first unit
     

  8. turbotom1052

    turbotom1052 Senior Member

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    Sounds like you need to balance your fountain solution feed with your return. Id be looking to be sure all the return lines on your water pans are clear. These lines do need to be flushed out a few times a year. At the same time you will want to insure that your water feed into the water pan is balanced against the speed of the return. I usually adjust the feed valve to feed solution a slight bit slower that the return. This will insure that the water level in your pan stays consistent. Try adjusting your feed so that the incoming fountain solution just barely produces a visible ripple on the surface of the water level right where the fountain solution enters the pan.
     
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