Luger dis-assembly

I've decided to field strip my 2 Lugers this weekend(it's too damn hot to do anything else here in Texas). One's a s/42 and the other is a DWM military dated 1917. I'm a virgin; this is my first time to do it. I suspect that neither one of the guns has been taken down since WAY before Elvis passed away;].


Anyway, I just looked at the instructions on this site for disassembly and just a little confused by the line:


>. Hit the frame with the rear of the screw driver to get the Safety Catch out.