Welcome to the forum acrboston. There is no definitive guide for complete disassembly on an HSc nor is there any reason to do so. It would probably do more irreparable damage trying to reassemble it and may, in fact, prove to be dangerous to shoot afterwards.
You don't mention if it is Wartime/Postwar (1940-1946) or New Model (1968-1977). Each type would be different and even within a type. modifications were made during the production cycle that could make replacement of a broken part impossible to find.
To clean and lubricate I have always (40 years) used non-aerosol WD40. Hoppe's #9 will clean any buildup in the Barrel before using the WD40. Again, I would encourage you not to try disassembling your HSc. Simple field-stripping, cleaning, and lubrication will accomplish your goal. There is no need to go further.