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dinky roll out of control when you add brake the dancer jumps up and down, bottoms out
putting slack in web letting it crawl from side to side
already set backlash and cable , new brake pads.
On one Quad stack the colour is in register then we speed up the machine and all the colours jump out of register by different amounts upwards on 5mm. Then when the machine is slowed down it comes back into register. Any advice would be welcome.
Changed blankets, checked all settings, still getting a double image on top half of front and back pages. Bottom half prints fine.
Do you have a type of newsprint onsite that you never use? Do you need something different? Use this category to talk with other users about your needs and theirs.
I'm having a problem with the web tearing at the blanket gap on the Page 1 side of the black unit on a Quadstack. We're running Quadstack into Atlas folder, 27.7# newsprint at about 18,000iph. The problem is erratic, and the tears extend along the line of the blanket gap, anywhere from 1/4" into the web up to almost 2" at which point all hell breaks loose in the folder. We found a cut in the Black blanket in that approximate location and replaced it, no change. We have been running the nips on the nose so light they aren't marking the paper at all, and the web has been popping in and out of the back nips. We've been adjusting them to try and get about 1/4' nip marks on each end, but no change so far. The pins appear to be coming all the way through. we recently replaced the whole knife box assembly and the pin strippers.
I'm out of my depth here (not being a web pressman). Any ideas?
Richard Fazakerley - Operations Manager - PPC
Anyone having issues with their water stops not staying open or closed, the new split washers are extremely easy to install and give you back full control. We can now run with them half way open again which helps tremendously with contamination issues on the edge of the sheet.
I had to replace two cable on our roll stand and now the upper roll position works ok, but the dancer will not smooth out its up and down continuously, The lower position gives me alot of trouble, in order to get propper tension the dancer is pinned in the upper position and as the rolls get smaller it snaps the webs. what is the propper way of setting these cables when they need to be changed? both were frayed and it was a matter of time before they broke.
We're running a Quadstack in coldset mode, mostly Newsprint products both Tabloid and Broadsheet. We have recently started getting lines printing across the front and back pages on Tabloids. They are almost always Cyan/Magenta, very thin (one or two dots wide, but rough edged - see attached picture), but under a loupe they do not have the sharp edged look of physical scratches on the plates. To be sure of this we checked the plate punch and the bender for burrs, the CtP was serviced only 2 weeks ago. It does appear that there is a visible build up of what looks like paper dust on the blankets which comes off with blanketwash/water. We are running No-process plates on our CtP, a mild acid fountain solution at a conductivity of 1500 over water and pH of 5.0. Paper, inks, plates and blankets have not been changed but we did recently change over to a new fountain solution that was supposed to run better with No-Process plates. Has anyone else gone through this problem? If so, what was the final outcome?
Richard Fazakerley - Operations Manager
Pacific Publishing Company - Seattle, WA
I am having some problems with my color ink tray on page one side of my quadstack. The yellow tray is showing some cyan ink. So the ink will have green spots in the tray itself. Can anyone tell me what I need to be looking for? I dont see any cyan in the magenta or black trays.
What Fountain Solution are most users using on their quad stacks? We were using Varyx but have not been able to find a good replacement. We currently are having an issue whe we need to sstop for a period of say 10 min or more, when we start the press back up the impression mark prints. In order to get this to go away we have to wash all 24 plates with plate cleaner. We are using a product from Applied Chemistries and it is a a mild acid.
Wondering which perf wheels to order?
We have illustrations. Go to the "Spare Parts" section by clicking in the menu to the left. Then choose either "RTF Perf Wheels" or "Inline Perf Wheels" to open a PDF illustrates the different kinds and their associated part numbers.
We have converted 4 of our Quad Stacks over to the 24 key fountains along with the segmented blades. After calibrating them and running them for a few months, I went back and compared our monthly waste totals against pre 24 key fountain months and our overall waste per month has dropped by between 3 and 4 percent. All of our operators brag on how much easier and quicker the start ups are. Its been a great investment and we could not be happier with the results!!
I am trying to find out what adjustments are avail to re-adjust the sidelay setting on our quad stack my front page can be adjusted to center our cross but our back page can only be brought to about 1/8 of inch from center always leaving the back form not centered any knowledge would be a help
HOW DO I RESET THE PLATE CYLINDERS ON THE QUAD STACK? MY IMAGES TO AND FROM PINS ARE OFF LIKE CRAZY.
September 2015: Ah! Shenango has your curiosity piqued...well here is your answer:
"Shenango" is a term used for a casually employed dock worker. Part time...when he or she is needed. Probably not having employment that is regular enough to pay the bills. So sentence #3 is the closest to being correct.
But I must admit...it was fun turning it into various other parts of speech that truly sounded like they could be correct!
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I am having an issue with smashed blankets on my Quad stack. Page 2 side is constantly smashing blankets. I have tried 3 different brands of blankets and they all seem to be the same. All of my pressures are set correctly. Out of the 6 quads we have running we are seeing a pattern of Quad 1 side 2. Those blankets,not just a certain deck, but on all decks on that side.. Even if the wrap up was on the page 1 blanket the smash is showing on side 2 only....
Does anyone have any problems with the web breaking when the E stop is pressed? If so, whats causing it?
Using the info below and the 2 photos should help you identify the type of ink seal needed for your equipment.
514050 – Web Leader Perfector, Web Leader Quadra Color and Atlas Quadra Color
1514380 – Atlas Perfector and Double Oscillator Quad-Stack
1514390 – Double Oscillator Quad-Stack UV
11001900 – Single Oscillator Quad-Stack
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