Oscillator/Worm Gear Archives - vandercookpress.info

Crescent. FAG Standard 550

Hi, Apologies as I believe I have asked this question before …but am unable to find the answer it here…. There is a Vandercook crescent that fits my FAG Standard 550 model. Before I ask Fritz – does anyone know what model. I think Mr Moxin you advised the model last time. Regards Matt […]

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, in printing the oscillating roller squeals badly. Just started doing this today. Any thoughts? Thanks.

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 seems sort of sluggish. It’s difficult to gauge where the sound is coming from, but […]

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? I’m just not sure how to do that or where it is…..

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 the room where I keep my press with very fine concrete dust. I cleaned off […]

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 remove. I followed the advice here and removed a lot of the rust with WD-40 […]

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 is less than having a one-off made. The Challenge census lists forty-one 15MA/MP and four 21MP. The gear […]

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 innards look like. The main difference is the crescent is set into a collar that […]

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 874 (gold metallic) on the press. Very quickly things went down hill. I am attaching […]

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 do the job. Its dirty up in there and i will clean it, but if […]

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 the press area and didn’t think about it again. After being off for a few […]

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 think this condition was caused by the worm gear and/or crescent. I adjusted the screw […]

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