I am reconditioning a 15MPC and am in need of an MPC manual or a pic of the impression Cylinder drive. I believe the parts are all there to reconnect except for the friction wheels (guessing) that ride the main drive shaft. Any help here would be greatly appreciated.
Perhaps the new wire was crossed with another?
As I understand there’s a separate motor on the carriage as with a Vandercook Universal or SP25. It may be a mechanical adjustment of cams that contact microswitches or a clutch on the carriage motor.
I mentioned your issue to Steve Robinson who said that he has a control panel for a Challenge 15 MPC. He’s traveling now, but I’ll get him to post soon.
I am hoping you can help me, as I have had a terrible time trying to find anyone who has a Challenge 15 mpC proof press. Lots of ma’s and mp’s are out there, but not an mpc. We bought the press through Briar Press from someone in California. Our press seems to be complete, and came from a studio. The seller was able to operate it, and I saw a video of the actual press in action so I know it did work at some time.
Here is the problem we are experiencing:
The press has three switches on the control panel, two larger switches and one smaller white switch in the middle. As far as we know, the left switch operates the power inking, and it works without a problem. The middle smaller white switch turns on the light, and also operates the carriage, toggling it to the right moves the carriage to the right. Toggling it to the left should move the carriage to the left. The video we received showed the operator moving the carriage right and left with the middle switch. The same is true for the switch to the right.
However, each time we try to return the carriage to the left, it makes the motor labor and blows a fuse. We replaced the fuse with a breaker box, since the fuses are $8 a pop, so we could experiment without replacing fuses. We attached the manual handle so we could manually move the carriage. Two issues are apparent. One, the carriage is stiff, but not so stiff that the carriage won’t move to the right. Second, it seems redundant that both the center small white toggle switch and the right larger toggle switch would do the same thing. We did have to replace the main wire when we got it; the insulation on the wire was disintegrating and was too dangerous to even plug into test the press when we received it.
Any suggestions would be appreciated, and if you know of anyone else who has a challenge 15 mpC, I’d love to know.
A few years ago I printed from a Challenge 15 MP, I have the manual for the press. Send me an email and I reply with it attached.
Inky Lips Press