I have a similar hedge trimmer to this. It was given to me as it was stuck and not working well. The only way that I could take the blade out was to split the casing via the 10 or so screws. It is pretty simple to replace the blade if you have one.
However, beware, there are spacers in the rail that keep the two blades from binding, if you lose one of them, you will cause a pinch point. That is only relevant if you have a set of two blades to replace instead of the whole assembly though.
Also, as a point to note, tape the two button levers in place before you take the case apart, and mark where the rack and pinion meets, that can be fiddly to set up if you dont.
Answers & Comments
I have a similar hedge trimmer to this. It was given to me as it was stuck and not working well. The only way that I could take the blade out was to split the casing via the 10 or so screws. It is pretty simple to replace the blade if you have one.
However, beware, there are spacers in the rail that keep the two blades from binding, if you lose one of them, you will cause a pinch point. That is only relevant if you have a set of two blades to replace instead of the whole assembly though.
Also, as a point to note, tape the two button levers in place before you take the case apart, and mark where the rack and pinion meets, that can be fiddly to set up if you dont.