The query fits no forum. But this one appears to be the closest pattern match.

Standard youtube queries show a bazillion videos of Sharps rifles being shot. I identified zero showing disassembly and/or maintenance of cap lock models. BING and GOOGLE searches for such videos also came up zero.

If you are aware of videos of the disassembly or maintenance of Sharps cap locks, please furnish link(s).

People have been shooting these rifles since 1853 and didn't have videos. They are very simple to disassemble and clean, you can do it practically without any written instructions. I can outline how to do it if you want; I have a Pedersoli .54 3 band percussion rifle.