I was cleaning my Statesman when I noticed that the feed had wandered off centre compared to the nib. I decided to disassemble to realign this and give the pen a thorough cleaning at the same time. The feed is conveniently fitted with a screwdriver slot at the barrel end to help align this to the nib when it is tightened onto the threaded section. There were no signs of locking adhesive at the threads or the barrel, so I am assuming that this is not required and hand tightening and feed friction are sufficient to avoid any problems.