SP-20 Taper pins in ink system lever bar

I’m in the process of putting back together a heavily desconstructed SP-20 #29569. I suspect (pictured top) these are taper pins that connect through the rod (picturesed 2nd) that raises and lowers the ink system. The pins are pretty stuck in place, so before I put a ton effort into trying to loose them, I just want to confirm whether I’m accurate in my assessment. Can anyone confirm my suspicions?

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Paul Moxon, Moderator
2 years ago

I agree, Ernst, that new taper pins are ideal. However, one may not find any at their “good” hardware store. It’s been my experience that restocking doesn’t happen as frequently these days. And reusing taper pins is something I’ve had to do on-site.

The taper pins in the SP roller arms (in Jess’s photo) are difficult to remove because of the angle of the arms on the lift rod.

Ernst Schaefer
2 years ago

jess, you want to use new taper pins, a good hardware store will carry them for one dollar apiece. take the part they are stuck in now with you and test for the size. the new ones should go in easy about 3/4 of the length from the right side. to get them out you could also put the pin in a vice and try to turn the round part. if you tap them out you can easily mushroom the end with your pin driver, which makes it even harder to remove.

Paul Moxon, Moderator
2 years ago

Yess, Jess. You’re still on the right track. Those can be a bugger to tap out. File any burrs and lightly oil to ease reinsertion.

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