SP-15 Squeal
Got a bad squeal on the SP-15. Can’t figure out where the noise is coming from. Suspect that the back roller core is defective and the bearer is not holding it correctly. I think we need a new roller/core. Anyway,
Roller issues, squeaky sound on No.4
Revised. I’ve recently refurbished a No. 4. When the roller carriage is in contact with the ink drum (hence the form roller clutch is engaged), there’s an awful squeaking sound. The front rider roller does roll, and the oscillating roller
Rainbow rollers (Universal III)
I want to be able to print multiple colors at once without the rollers moving so much back and forth to muddle the colors together. I know there’s a way to do this by taking something out….the crescent I think?
SP-15 Questions
Hey All, I have a Challenge 15MP which is the knock off of the SP-15 and am having two issues that I would love some help figuring out. Question #1: Oscillating Roller Recent home construction resulted my contractor accidentally flooding
Polishing drums on a SP-15
So I’m rehabbing my SP-15 currently. The rollers melted a long time ago, and the printer has been sitting in a garage for 20 years. There was some light rust and goop on most surfaces that I was able to
Challenge M Series Worm Gear Fabrication
I am having a new worm gear and crescent fabricated for a Challenge M series press.* I intend to have a couple of extra sets made. The cost per set will be $1,150 with free shipping within the US and Canada. This
Asbern ADR-1 Oscillator
In June, I tuned-up a Challenge 21MP for Andrew Huot at Big River Bindery in Davenport, Iowa. He also has an Asbern ADR-1 that had a gummed up oscillator. I hadn’t serviced one before, so this was a great opportunity to see what it’s
New info in SP-15 roller hesitation problem
Hey Everybody, It seemed like this was going to be a workable problem, but now in actuality it has taken a turn for the worse. Today we printed a navy ink with no problem, then washed up and put PMS
SP 15 vibrator latch
The “catch” that holds the “vibrator assembly” isn’t doing a very good job of securing the vibrator assembly in the “up” position. I can’t tell whether its spring loaded to keep the pressure on or whether gravity is suppose to
SP-15 rollers hesitating
Right before the holidays I was finishing up a print job and noticed the the rollers didn’t want to turn with each other anymore. I thought it was the ink drying as a result of the heater blowing close to
320G oscillating roller problem
I’ve been having some problems with the oscillating roller on my 320G. It would stop rolling and begin to chatter as the cylinder traveled across the bed. When the cylinder changed direction it would begin to roll normally again. I
Ink Drum, oscillator and rider rollers
Hello everyone. Could someone please tell me what could be causing this uneven spread of ink on the ink drum? Could it be the press leveling? I’m not sure it is 100% level. I’m also attaching some photos of my
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