The motor/chain on my Uni I recently started getting louder. I applied some serious grease and it seemed to quiet a bit, but not much. I also noticed the rollers aren’t distributing ink thoroughly on one end (closest to the chain). I experimented with raising and lowering the roller height and it doesn’t make much difference when there is increased contact between the rollers. Everything appears fine with the form rollers–nothing loose or funky. I also pulled out the panel underneath the feedboard to take a closer look. The noise is louder without the panel, obviously, but it also seems like there is excessive slack to the chain–is this something that could change (after 40 years?!) and require tightening? And am I correct in understanding that the motor for the Uni I is sealed–unlike a #4–and doesn’t require oiling?
Any suggestions would be greatly appreciated since there are jobs waiting to be printed, but I don’t want to make the situation worse.