Removing an overtightened lens cell

I have a lens (Rodenstock 75 mm f/4.5 Grandagon-N) with a rear cell which is ove rtighted into the shutter. Any advice on safely removing it?

Bob Solomon of HP Marketing, the U.S. distributor of Rodenstock participates in this, and most other LF forums. He'll answer you, or you can locate his e-mail address from one of this earlier contributions. He'll know. Other option, is to ask the LF guru, Steve Grimes skgrimes@skgrimes.com Steve mounts, re-cements, builds, re-formulates LF hardware.

Call the Rodenstock U.S. Service Center 973 808-9626 and they will help you. Since back focus is critical the wider the lens you really want professional advic