A proof press resource
I am working on a Vandercook No. 4. The carriage does just fine engaging in print and trip. However, the carriage will not stay put in the home position. On the opposite side of the operator, there is a broken spring that is keeping a latch in place. I wonder if there is more to […]
MoreMore TagOur Uni 1’s back form roller gear is spinning out on the starting teeth of the rack. I’ve changed the roller height, made sure the end screws on the roller core are tight, made sure the spring beneath the starting teeth is free of debris (it depresses with finger pressure). I’ve had this issue on […]
MoreMore TagWe can’t get the back form roller on the SP-15 to lower on the gear side only–it can’t go lower than a narrow sliver (less than 1/16″) on the roller setting gauge, no matter how much you turn the knob. We can adjust this back roller’s height on the operator side, and the front roller […]
MoreMore TagThe gear side of the rear roller on our SP15 will not lower enough to hit a roller-setting gauge. It does have a range of motion, just will not descend low enough to contact the gauge on the gear side. The roller measures about 1/8″ less than 2 1/2″ in diameter. The tip diameter of […]
MoreMore TagNow that the carriage bounce is sorted out thanks to Paul and Ray, the next item is the crazy wobble in the form roller gear. I tried to attach a video to this post but failed somehow. The video here shows how bad it is. The set screw and split sleeve are present in the […]
MoreMore TagI have recently begun to produce work on my Uni III after a long hiatus, and have run into a couple of vexing issues. Firstly, I realized that the rear form roller was laying down ink only on the side opposite from operator. The roller will not adjust low enough on the operator side (the […]
MoreMore TagI’ve had this issue before and I can’t remember how I fixed it. When I started printing today, there is this noise that is coming from (I believe) from the rear form roller gear not being in the correct position on the core. You can hear it just as the cylinder leaves the feed board. […]
MoreMore TagI’ll say that the form Roller gear is slipping off the track. I notice it’s when the vibrating roller shifts to the near side mostly. The only thing I have noticed is the first form Roller L shaped hinge is loose turning and has to be checked and turned back. There doesn’t seem to be […]
MoreMore TagHi, I have been helping a friend with cleaning and readjusting his SP20. Now that we’re almost done the moveable end of the roller rack seems to be sticking a bit too far up. The press hasn’t been used for probably something like 20 years… So hard to tell why that is. Anyway, the spring […]
MoreMore TagOne of our SP-15s makes a sort of grunting noise as it travels down the bed. I suspect it is the gear on the back form roller, but I cannot see any issue with it. The other SP-15 is silent during this travel, and this noise is new, so something seems to be out of […]
MoreMore TagHi Everyone! I’m in the middle of aligning the Set Form Rollers on this old 232p. Struggling somewhat…. But since I noticed something, I like to get some answers before going on: 1, 2, 3 are the roller unit carriage on the press. A, B1, and B2 are rollers from the Upper Ink Unit. […]
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