So many helpful videos for cleaning a Saeco 'Brew Group', the removeable device housed inside the machine side panel. Two links below are an intro and a more advanced guide. My advice fits between the two levels, so you dont quite have to be an engineer to clean it and gives you the MOST IMPORTANT PLACE to put the grease.

https://www.youtube.com/watch?v=NwOMRgWU...

https://www.youtube.com/watch?v=QWgynSsv...