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3284Re: [PPLetterpress] Vandercook SP-15 Trouble Inking

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  • Fritz Klinke
    Dec 9, 2004
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      Jenni--Lots of problems here and it could be many things. Do you have a galley
      bed or type high bed? If not sure, send me the serial # and I'll look it up. The
      rollers may be bad--i.e., worn, swollen, etc. The rear roller is gear driven and
      through the ink vibrator, the front roller is thus driven, so I'm puzzled by
      "dragging" rollers. And if you're getting the plate inked with the vibrator in
      the up position, then the whole inking system is defeated. And that means
      something is really out of whack. More information is needed--type of base,
      thickness of plate material, etc plus what type of press you have (galley or
      type high), and diameter of ink rollers. When everything is sized properly, the
      press should work as advertised with minor adjustments.

      Fritz

      ----- Original Message -----
      From: "Jenni Won" <jenniwon@...>
      To: <PPLetterpress@yahoogroups.com>
      Sent: Thursday, December 09, 2004 10:05 AM
      Subject: [PPLetterpress] Vandercook SP-15 Trouble Inking


      >
      >
      > Hello,
      >
      > I have a Vandercook SP-15 which is recently having trouble inking.
      >
      > While running a job using photopolymer plates, the rollers left behind both
      > uninked and overly inked areas - the coverage was uneven and inconsistent. I
      > was able to deduce that the form rollers were dragging across the plate
      > rather than rolling across them. It seems that the big metal roller on the
      > vibrator assembly was applying too much pressure to the form rollers,
      > preventing them from properly rolling. Leaving just the vibrator assembly in
      > the up position when rolling across the form seemed to temporarily solve the
      > problem. Also note that the inking problems weren't consistent among
      > different forms - the varying amounts of printing area yielded different
      > results. I spent a good portion of an afternoon cleaning the roller blocks -
      > the nyliners were in great shape - but this didn't solve the issue.
      > Adjusting the rollers also didn't make any difference.
      >
      > On another note, can someone tell me where all the oil holes are on the
      > press? I am only able to find 2 - on either side of the cylinder [by the
      > crank].
      >
      > Hope this makes sense. Any help is greatly appreciated!
      >
      > Thanks!
      >
      > Jenni
      > pigweed press
      > somerville, ma
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      > Yahoo! Groups Links
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