I wrote this up for cleaning your Kayfun or Russian atty, but it is basically the same process I use for any new atomizer.
Completely disassemble, I mean everything. Anything that can be unscrewed needs to come apart.
Every oring needs to come off.
The center pin insulator on the top of the deck needs to come out. (easy to do)
I did not attempt to remove the insulator at the bottom of the 510 connector though.
All orings got dropped into a coffee cup with