Most of the dissasembly is simple. a few notes:
The spring will not spring out, but it is easy to lose since you may turn the reciver over when taking it apart. Just get it out and store it as soon as the screw is out.
The sear return spring should be out and the hammers uncocked when removeing the sear axle. There is a set screw that holds the axle in place on all but the earliest guns.
To get the hammers out, remove tha axle (also a set screw) and pry the hammers up and roll them forward to remove them. To reinstall them, put a taper on a pin punch the size of the axle, (1/8"} and use it to assemble the hammers, Then use the axle to push the punch out.
I store all the parts in a clear fishing tackle tray with dividers.
Best, Dick