This is my second unsuccessful attempt trying to disassemble the front cell.
The cell was actually clamped very tightly on a vice using wooden jaws to protect the thread and I made a two prong spanner out of a hinge. When I started turning the slotted part of the cell, the threaded part, now being held very tightly by the vice also started turning.
I have dosed the assumed point of separation with liberal dose of acetone to remove any glue or thread lock but still no success.
Am I missing something ? Any help appreciated.