Still looking, but I ran across this, laughed so hard came outta my nose, listen to the audio haermm
I'm fairly certain that the Pred was out of time or something like that, it was retreating to it's ship. Does this vid work for you guys?
http://www.fancast.com/movies/Predator-2/24409/691052603/Hanging-On/videos
They were fighting, at one point they fell and Glover was hanging off a ledge for dear life as the Predator was hanging off his leg.
Pred activated the nuke while laughing, basically saying, 'now we both die, negro', Glover then took the Pred's blade-disc and cut the nuke wrist along with it's hand.
After that, the Pred made it's way into the old ladies bathroom, where it closed up the stump of it's wrist and then it ran its ass to the ship, while Glover followed.