Thanks for all the replies. I figured out how to take down the luger into the three pieces, but was afraid to go any farthur until I become more familiar. Those videos are very useful in showing what to expect, but I've found I need to use slightly different methods for my Interarms Mauser.
Anyway, the shooting trip planned for last Sunday had been cancelled due to weather, and it might be a while before I can get another one organized. I'll have plenty of time to become more familiar with my luger.
Thanks all.