I have a weko on a miller tp104 @ work that's throwing fits. It will set with new or old scaner eyes, but is WAY too sensitive. shuts down when the sheet is @ the head stops near perfect (not ahead , behind, or crooked). our sapre amp won't even set and the other has been looked at several times. surely there is a fellow pressman/maint man else out there that deals with these. any thought helpful
'Dale' is probably your man to find for that one. Most of my offset experience is with Hamada's....660 and 770's.
Maybe... Rob, check the sensitivity level on the photoeyes and reduce it. It may be set too sensitive. Also, are these active or passive photoeyes or are they prox switches. I am assuming passive photoeyes to see the paper. Passive photoeyes use a reflector to reflect the beam back to a receptor in the original unit. Also, check for humidity in the transmitter portion of the photoeyes. If the lens is 'clouded' up, it may just be refracting the light to the point that they are not receiving a 'return' signal from the reflector and read as paper present. HTH, keep us updated. PS. Never worked on presses, but have a few years industrial maintenance experience. Let me know if this helps. G :TU:
As a (hopefully) interesting side note....before Mike T. started doing TA Performance as a full time job, I believe he was in the web press department at the local newspaper.
only the double detector (in front of the sensors I speek of) has a "light" and a pick up. These don't have a reflector (I know what your talking about), I think these emit and send (yu can see to seperate optical blocks in the sensor). The sensors were found to be some what cloudy. we polished the with some rouge and a dremel turning way slow. it helped. We bought two new sensors to try just the inner ones by them selves (we bought two because they cost $500 a piece :eek2: ) They just mad the whole deal even more sensitive. I'm not sure if the amp has a pot somewhere internal to adjust the gain. I have very little literature schematics on these, so I hate to get inside and start "Twittling". op has been dealing with it for awhile because of scedule. jsut wasting alot of paper trying to tweek th feeder to get the paper there within a nat's a##. :blast: :blast: :blast: :blast: :blast: :blast: WEKOs
