Dillon Shellplate bolt

[Kiwi cop]

I have a small (???) problem with both my Dillon SD and 550C presses. The centre boot that holds the shell-plate in will turn with the shell-plate after being left idle for a few weeks, tightening the bolt till the shell-plate will not turn. It takes me forever to get it to stay when the shellplate advances to the next station, only to repeat the problem again on the next reloading session.

I have tried cleaning the bolt at the commencement of every reloading session, graphite and dry lube. But nothing seems to work.

Does anyone have any sage advise?

 

[Mike0251]

There is a set screw in the 550 ram as shown in the picture below. When adjusting the bolt so the shell plate moves freely then snug up the set screw. The bolt will no longer move when rotating the shell plate. Always raise the ram and loosen this set screw or remove when removing the bolt to change or fiddle with the shell plate and the snug back up when done. You have to move the ram up the get to the screw.