Hi Trolli, I have the manual too (2nd edition January 2007) which I assume as it's a 2009 engine is the most up to date edition. There are no pictures of these dip switches anywhere in my manual. So I appreciate you taking the time to scan and post that picture - I will print off and, when feeling brave enough, approach my new RIB with a screwdriver and menacing smile!
Hi Ian, thanks for that - yes I've just looked at some pictures of mine and there is, as you say, a semi-circular (sort of) panel that would unscrew....
Question is, do I feel brave enough!
EDIT: I've found the dip switch picture - it's in the engine manual, not the gauges manual!