You can get manuals at the Smith and Wesson website.
On line auctions.
You really need the services of a good gunsmith
You can request a manual for free at the S&W website.
Disassemble it, remove all major deposits of carbon and rust, lightly lubricate the internals, reassemble it, lightly lubricate the external area.
See the link below for an owner's manual for a Tangfolio automatic pistol.
c4
on the right side of a crvena zastava-cal 7.65mm mod70 pistol you will see a round pin above the trigger push that pin out and the pistol will disassemble by pulling the slide forward. johnny
Check the discussion page and do what is written backwards. If you have trouble, you need to see a gunsmith
Without knowing WHICH 22 pistol, we can only surmise that you did not correctly reassemble the pistol.
ACP and auto are used to say the same thing. Automatic Colt Pistol.
You need the services of a gunsmith.
Let a gunsmith do it.