Stihl Hedge trimmer not opening fully
I have a Stihl HL 145 Kombi attachment onto my battery combo unit but it’s not fully opening for some reason. I know there’s a little metal knob that you can pull down using the black lever, I am pulling that down anyway, but as you can see in the video, it’s not even reaching that far when I’m trying to open it so it’s not that knob that’s causing this to not open. Maybe I can force it with a lot of pressure but I’ve used this for years and never had to force it so I don’t want to break it. Any idea of how to fix this?