I'm new to the SKS, and recently picked one up.
I was inspecting and lubricating the trigger group today, and decided to test it by depressing the disconnector and pulling the trigger. I watched through the peep-hole on the side to see the trigger bar engage the sear, and allowed the hammer to fall against my work bench because I'd seen that done before elsewhere as a safe way to check function without damaging things.
I did this a couple of times and was satisfied, but after the second try, I was unable to cock the hammer back. It's stuck in the forward position. Everything seems to move fine otherwise. The sear slides without binding, the disconnector feels normal, etc. The hammer will move slightly to the rear (maybe 1/16 of an inch), but stops.
Google-ing around didn't turn up much. Lots of cases where people had their hammer stuck back or it would remain in the cocked position, but I couldn't find any cases where the hammer is stuck forward.
Did I accidentally screw this thing up, or is there something I'm missing?