Changing the blade is that easy - replace the inexpensive standard blades in just a few movements

It's easy: Take out the old blades, put the spacers aside, new blades to hand and off you go: first blade, spacer, second blade, spacer, third blade, put on the head and gently tighten the knurled nut.
FINISHED!

So that you can follow it closely, we have prepared a video with instructions for you: