Search results

  1. J

    Reverse curl issues within the shop.

    Not sure what you mean by secondary fixing unit?
  2. J

    Reverse curl issues within the shop.

    We are climate controlled. Usually between 47 and 55% rh.
  3. J

    Reverse curl issues within the shop.

    Looking for some ideas and possible solutions to an issue with reverse curl on our printed sheets and lables. The problem seems to have come out of nowhere across all substrates and presses without any clear cause. Any ideas on what could be causing it and solutions on how to fix it?
  4. J

    Roller replacement

    Those are the tricks i was looking for. Have any to share?
  5. J

    Roller replacement

    Thank you for your response.
  6. J

    Roller replacement

    I do follow specs for the press and i have 10 years of experience. I was only looking for tips to make the process easier. I did the 6th unit yesterday. I found that most rolls needed backed off 3 to 4 full turns to allow clearance for the new ones. The waterform however was more like 6 full...
  7. J

    Roller replacement

    not sure if this is the correct forum title to post this in but here goes. I am getting ready to do a complete rubber replacement on a heidelberg xl-75 6 color. Looking for any tips on making the process run smooth. Any tricks anyone has come up with. How far to back settings off before i start...
  8. J

    perfecting press speed

    No sir. In northwest pa.
  9. J

    perfecting press speed

    Thank you both for your replies. I have put months and months of frustration, research, and trial and error into this piece of s#<t that they bought. I was only given 2 weeks of training from a demonstrator. Now that i have finally fixed the mechanical errors and done my best to eliminate the...
  10. J

    perfecting press speed

    I have been told by a few different heidelberg techs that there is no danger of damage to the press running at full speed in perfecting. 1 as long as it is maintained well (i do my own maintenance and can vouch that it is) 2 pincer bar play is at min. (Perfector cylinder was just rebuilt by...
  11. J

    perfecting press speed

    Is it ok to run a heidelberg xl-75 at max speed while in perfecting?
  12. J

    calcium build up.

    Thank you. We do use a calcium rinse weekly but it would prob not hurt to use more. I will have to talk to our rep about the calcium suspension additives. Anything to help even some of the problem.
  13. J

    calcium build up.

    No. I don't know how.
  14. J

    calcium build up.

    Thanks. It wouldn't be so bad if it didn't get all over the plate when i wash blankets.
  15. J

    calcium build up.

    Does anyone have any ideas on how to reduce the amount of calcium pulled from the paper during printing. We recently started getting our paper from europe and while the paper quality is far better it comes with this new problem.
  16. J

    chemistry?

    What would cause only the areas that the paper does not extend to scum? Builds on blanket as well.
  17. J

    chemistry?

    Raw water is 1000. I have not tried to set the system using the plate as an indicator. I will try that tonight. I do know for sure that all rollers are set to spec i have checked and rechecked to be certain nothing is coming out of setting. I am still learning this press with very limited...
  18. J

    chemistry?

    On this press the pan roller is rubber like metering rollers on other presses and the chrome is outside the pan. Its new to me ive only seen them the other way around. There is no scew setting only adjustments for both sides. The problem is that the gear side has to be backed off so far to clean...
  19. J

    chemistry?

    Water temp is set at 55 with 5 degree limit. I am running without integration. Unless i am confused isn't the skew setting what i set when i contact the chrome metering roller? Set till heavy water disappears plus a quarter turn. This happens on all units all on the gear side.
  20. J

    chemistry?

    Once again with a different problem on this xl-75. We have been having issues with gear side drying and getting a proper ratio without emulsifying. All roller settings have been checked and rechecked but still can't get a clean plate without flooding part of the job. Only thing i can figure is...

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