I’ve just finished adjusting the top bearings on my SP15, and I’m seeing something unexpected. The roller height is now identical in print and trip, but only while the carriage is outbound, i.e., moving away from the feedboard. Once it hits the trip mechanism and I roll it back, the rollers are a touch lower […]
MoreCategory: form roller bearings
Chattering and Carriage drifting on Vandercook No. 4
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 […]
MoreUni III roller bearer issue?
Looks like when new rollers were put on the press, two of the roller height adjustment mechanisms were put on backward, so that the locking nut faces the wrong way. I assume they should face inward, but we have two that face outward. Anyway, a few days ago, one of the rings came off the […]
MoreUni 3 Roller Bracket
I’m not sure of the actual part name. See photo. It’s a bracket that goes on the bar that raises or lowers the rollers. I’m wondering if it should be loose or fixed? I thought there was a screw holding it on, but it’s a rivet of some kind, so I cannot tighten it. But […]
MoreSP-15 retaining screw
Greetings! I’m looking for advice regarding a retaining screw that has partially worked its way out of the bearing block on the operator side of the front form roller on our SP-15. Any suggestions for best practices in terms of returning the screw to its proper location? It doesn’t seem to want to budge… in […]
MoreSP-15 Gear Roller Grunt
One 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 […]
MoreUni I Drive Gear and Roller Height Adjustment
I have a Uni 1 manufactured in the 60s, still being cleaned but also being used to print. I have two observations/questions which I welcome help on… 1. The drive gear (if that is the correct term) oscillates when the press runs and the rollers are engaged. A woodruff key was missing and replaced but […]
MoreSP-15 ink roller spring
When I got it, my SP-15 had springs attached to the rear roller(photo attached). I’ve noticed that the tension causes the roller height to decrease rather than helping to hold it steady. There’s no spring shown in the manual & it looks like someone long ago added a bolt that would anchor the end of […]
MoreTightening bearing block on SP-15
I have found that the adjustment posts for the form rollers on our SP15 go out of adjustment rather easily of late. The locking screw is tight, but not tight enough to stop the post from turning. Do I simply remove the bearing block, remove the locking screw, and ‘gently’ tap the side of the […]
MoreRoller bearing blocks position, nyliners and spring
Hi everyone, Looking at photos of other sp-15s I noticed that my press came with the spring pulling on a different piece than it should. Is this (2nd photo) the right arrangement? My press is the first photo. Also, my bearing blocks are obviously wrong, I will change them tomorrow. I also want to know […]
Morehelp sp15
Sp15 been in storage many years for move and building etc. Bearing blocks for form rollers lost. Also trip for paper release was broken.
MoreNeed rollers for Challenge 1528 KP
greetings all I am new to the forum, and was hoping someone could help me track down form rollers for a challenge proof press. My rollers were thrown out by a janitor (i had them off of my press so i could do some brayering) and it’s been difficult to track any down. i may […]
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