Pull back the slide and lock it, oil the rails, lightly oil the barrel, return rod, and return spring.
Yes. 9mm Kurz (or Cortos) is the European designation for .380 ACP. also called .380 Auto.
380 ACP, 9mm Kurz
While the .380 is sometimes called the 9mm Kurz, it is not the same as the 9mm parabellum (also called 9mm Luger and 9x19). It is shorter than the 9mm.
A double action pistol that chambers a .380 ACP round. AKA 9mm Kurz
.380 ACP, also known as 9x17mm, 9mm Short, and 9mm Kurz.
Try want ads, gun shops, gun shows, on line gun auction sites.
They are the same round. In the "metric world" outside the US it's called 9mm Kurz (German for "short") and in the US it's called the .380 ACP. Other names, depending on the country and manufacturer, include .380 Auto, 9mm Browning, 9mm Corto, 9mm Short and 9x17mm, and there are even some others. The confusion is caused by the fact that US ammo named .38 or .380 is the diameter of the brass cartridge while the bullet is actually .35" (9mm) diameter.
Best left to a gunsmith. If you just have to do it, get one of J.B. Woods books on handgun disassembley.
Follow instructions in the owner's manual. If you don't have one, I suggest you find a gunsmith and ask for help.
Without knowing what the actual make and model of your pistol is, the answer will be the default "gun show, gun shop, or try E-gunparts online".
9mm Corto is another name for .380 ACP (also called 9mm Kurz and .380 Auto) Corto and Kurz both mean "short"
.380 ACP is simply another name for the 9x17 cartridge, also known as the 9mm Short or 9mm Kurz.