FunnyVictor86
Well-Known Member
One of the slider pins is seized

One of the slider pins is seized
this.
Pull the slider pins, clean them up wth some fine sandpaper, grease the snot out of it when you put it back together.
or go buy new pins, they're not expensive, but I am a cheapskate. 10 minutes with the wire wheel on a bench grinder and you can clean all of them up.