Rebuilding a CHNC I Collet Closer

Hi there Big John T, I am having the same issue with my CHNC 1, and am curious if you may have gotten the dash numbers reversed in the first two o-rings you posted. When I search McMaster for 1879T23, I pull it up with a dash of 016 and when I look up the 9452k18, I get a dash of 010.

Do you still have these rings sitting around? I realize I'm responding to an 11 year old thread and am guessing you've tossed them or given them away by now, lol.

Thank you so much for the offer! But I've already ordered and received everything I need. Putting them on today. I'll update if everything fits or not, so future users/searchers can see if the dash numbers were reversed.

Alright... HOW ON EARTH did you get the bearing housing off?!?!? did you use some kind of puller?

I'm assuming I remove the bracket holding the closer to the... collet holder tube? I don't know what it's called. And then I remove the spanner nut at the back of the valve assembly. But the spanner nut just spins the closer. I tried putting a strap wrench on the closer but I can't get the spanner nut to budge. After the spanner nut is off, I assume I disconnect the air lines and then gently deadblow the whole assembly off the tube?

BigJohn, I'd like to contact you but dont find a message option?