You can see here how the lock ring is Part of the assembly, as well as how I grease the bearings...
The hole in the axle flange allows access to the individual lock plate bolts.
PS - as an experiment I tried loosening the adjuster ring but I haven't been able to budge it with a blunt punch and hammer.
That's not right.
Might be because of excess heat from dry bearings.
Try soaking it with a lite oil and see what comes of it.
It should move rather easily once the lock is removed.
It should have budged a little with the lock in place.
also Art