my Miche Primato hubs are a bit rough (particularly the rear hub) and I would like to repack the beatings .
I was able to access the RH side easily.
I cannot though figure out how to access the LH HDS side.
if I loosen the grub screw on red flange and hold it with a wrench an Allen key seems to partly unscrew the silver end cap.
but then it stops.
before I mess something up, I thought I would ask here for guidance for how to proceed?

is that silver NDS cap just friction fit? Should it unthread further? if so, how?