DON'T...................Unless there is some unforeseen reason that I didn't catch? So you get those two parts out, a screw with a turned pivot tip and the cylinder latch lever? Trust me, there are indeed two parts in there, but unless something doesn't work right, there is no need to disassemble. The screw has a slotted head that goes from the hole's thread to the other side hole's thread. In other words, when you get a possibly ill fitting driver in there and meet some difficulty (loctite in use) not only the screw head, but the holes threads could both become damaged. Just trust me on that (I won't tell you how I know this) and unless you get it back with sufficient goop, I have seen others previously removed cylinder latches shoot out and lost forever in the dirt. Not a good scenario to say the least. Smithy.