Schritt 10 übersetzen
Pull up on inner part (glass housing). The barrel will begin to twist. Notice Extended notch. Twist until the Notch descends. Stop when notch descends.
Picture shows notch has descended. Now you can twist rear part until it releases and remove it. Be careful in removing. Make sure it removes freely. There are tabs that can break off if forced.
Twist until inner barrel releases and drops from groove. Mark the point where barrel releases and remove groove tube.