Pf-9 loose pin what to do?
There's another fix. One that I've used on several occasions with good success. With the head of the pin sticking out like in your pics, put a drop of the red colored Loctite on the end of the pin. Tap the pin back through until it's protruding out the other side a bit and put another drop on that end. Center the pin back in the frame and let the Loctite dry for about 24 hrs and it should stay put. The excess Loctite can be easily wiped off with a tissue. It can still be driven out with a hammer and punch should you ever need to.