How do I remove the blade from my KS 120 KAPEX?

To change the blade on the KS 120 is fast and easy.
First, ensure paower to the saw has been disconnected then engage the FastFix lock, see the screenshot below.  

There are directional arrows on the screw, to loosen the blade turn key clockwise and to tighten, turn anti clockwise.
For full instructions see the video below for a visual guide.