It appears that you are missing one of the brass washers. The one that goes on the locking tab side of the blade, is bent in order to allow the locking tab to move.
Ok what I found out the hard way is your frount screw is to loose and to tight will make it hard to get the blade out take the screw out put Loctite on it blue keep turning it in and out until you like how your blade comes out and locks in
Just take other side off and bend tab back in place by pushing it in with small punch there is a window to access it
It appears that you are missing one of the brass washers. The one that goes on the locking tab side of the blade, is bent in order to allow the locking tab to move.
Thank you much man!!!
Ok what I found out the hard way is your frount screw is to loose and to tight will make it hard to get the blade out take the screw out put Loctite on it blue keep turning it in and out until you like how your blade comes out and locks in
"promosm" 😆