M series

How to replace drive belt for Challenge MP-15?

mkelsey September 20, 2019 Challenge, Ink drum, M series, Motors 2 Comments

The drive belt on my Challenge MP-15 just broke. I found a link to buy a new one from Grainger, based on a link Paul had posted for an SP-15 (the specs seem correct, 18″ long, 1/5″ pitch, 90 teeth).

SP-15 Questions

deadraw July 14, 2017July 17, 2017 Challenge, M series, Oscillator/Worm Gear 7 Comments

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

Challenge 15MP Chatters

Lad Boyle March 26, 2016March 26, 2016 Challenge, Form rollers, M series 13 Comments

My daughter has a Challenge 15MP. Sometimes when she returns the carriage to the feedboard, the gears “chatter,” that is, the gears are not matching up and it makes the carriage shake. I’ve looked at it and don’t see anything

Challenge M Series Worm Gear Fabrication

Paul Moxon, Moderator August 26, 2015 Challenge, Fabrication, M series, Oscillator/Worm Gear 3 Comments

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

Challenge 15MP oiling question

St Brigid Press June 8, 2014June 9, 2014 Challenge, Lubrication, M series, SP series 5 Comments

Hello All, I have a Challenge 15MP (similar to the Vandercook SP15). Not having an extensive manual for this particular press, I am not sure I’m finding all the appropriate oil ports to lube it correctly. Does anyone have a

Challenge 15MP carriage bearing adjustment

St Brigid Press February 6, 2014February 7, 2014 Challenge, M series 7 Comments

Hello all, I made the first adjustments to the lower two eccentrics on either side of the carriage today, gaining a much more even impression across the width of the bed. Special thanks to Gerald Lange, Fritz Klinke, and others

Setting Impresion Bearings

clovestpress July 7, 2013July 8, 2013 Challenge, Impression Cylinder, Ink Issues, M series, SP series, Under Rails 1 Comment

Hello All, I’m having a grand old time trying to set the bearings on my Challenge 15mp and it’s been over two weeks of adjusting, proofing and re-adjusting. The main issue I’m finding is that my carriage shifts once the

CHALLENGE 21MP

nsilberg July 4, 2013July 4, 2013 Challenge, Form rollers, M series 1 Comment

Hi All, I am helping to restore her Challenge 21MP. It seems the inking rollers and assembly are missing. Maybe dutifully taken off the press after printing and forgotten about. The cores and rubber are not as much of a

Help with ink distribution roller Challenge 21MP

Brent Done January 24, 2011January 25, 2011 Challenge, M series, Oscillator/Worm Gear 3 Comments

Hi folks! I’m hoping that your collective knowledge can help with a Ink Distribution Roller issue. I have a Challenger 21MP. I’ve restored it and it is in great shape….except for the Ink Distribution Roller. I’m not familiar with the

Challenge Proof Press Roller Specs

Casey McGarr February 10, 2009February 11, 2009 Challenge, Form rollers, M series 2 Comments

Does anyone know the specs on the form rollers for a Challenge 15MP proof press ?

Challenge 21MP Vibrator Assembly Issues

Brent Done November 28, 2008March 21, 2009 Challenge, Inking System, M series 3 Comments

Hi Folks – I know that I use one of the “knock offs”, a Challenge 21MP (similar to the Vandy SP15), but I’m up poop creek without a plunger. I am calling on the collective wisdom of this group…. I’ve