Precision Please - Adjusting a Makita LS1018L

My Makita Mitre-Saw didn't cut anywhere near accurate. So I had to reset her. But the manual wasn't that helpful. For there may be others with the same problem, I thought it would be great to share what I know.
I'm sorry for using wrong grammar and words. English is not my mother tongue. I'm still learning and try my best.
More informations about the Saw: www.makita.de
More informations about Noordbrook: www.noordbrook.de