Cracked small head and lock cam on C&p old style

Is this a part that can be replaced? I have a welder coming to look at it this afternoon, but am unsure if it can be fixed.

image: crack1.jpg

crack1.jpg

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Can you post a picture?

does anyone have a trick for REMOVING this from the press?

Yikes! How did that happen?

It should be connected to the main shaft, and I’m not sure how easy it will be to remove from the press. I’ll take a look at ours at the shop and see what I can figure out.

Does the press not run? The track on the cam looks to be unharmed, but I can’t tell from the photo.

I think you are going to need a very large gear puller. You might have to find a machine repair specialist or just make your own tool.

I’m interested to hear how it got broken!

Daniel Morris
The Arm Letterpress
Brooklyn, NY

I have removed a cam from a old style 9 X12.it is not an easy procedure.
There is a key locking the shaft to the cam. Drill the center out of the key so that it will shrink slightly. Then thread the hole and extracted the key with a slide hammer fastened to a bolt screwed in to the key.
With the key out, fabricate a puller with four 3/8” holes to attach it to the cam and one in the center for all thread to pull the cam off the shaft. (I have posted pictures of the puller on fliker )
http://www.flickr.com/photos/[email protected]/
Then match the four holes in the puller to the cam face and drill and tap holes in the cam, attach puller to the cam tighten the all thread to pull the cam off the shaft.

To fit the cam back on the shaft drill and tap a hole in the center of the shaft that matches the thread on the all thread. Thread the all thread in to the shaft, then cool the shaft with dry ice and warm the cam in an oven to about 300 degrees F. Slide the cam over the all thread ( line up the key slots) followed by the puller and the nut. Tighten the nut quickly pulling the cam back on the shaft. I have done this on shaft assembles in the past with success
Good luck
Don

image: C & P cam 0111.jpg

C & P cam 0111.jpg

It was apparently cracked when purchased 3 years ago… The press was rarely used until the past couple of months. It does run as the track is unharmed, but there is a quite noticeable difference in the effort it takes to turn the flywheel. I had a welder and a machinist in here yesterday; the crack has grown in their efforts to remove it.

Amazing advice dredaker!