I followed Steptoe's wonderful instructions and changed the alternator belt whilst doing the full service on my 02 Adv today.
One problem I found when replacing the tank - the clearance between the Alt body and the Engine casing was smaller with the new belt on, and the QD connector for the tank cross over wouldn't fit back through
I had to drop the alternator belt back off, remove the new belt to get enough clearance to get the connector through.
Just as a warning if anyone else is planning on doing this job themselves.
One problem I found when replacing the tank - the clearance between the Alt body and the Engine casing was smaller with the new belt on, and the QD connector for the tank cross over wouldn't fit back through

I had to drop the alternator belt back off, remove the new belt to get enough clearance to get the connector through.
Just as a warning if anyone else is planning on doing this job themselves.