Here's a link to a very active forum of Alfa motorhome owners.
Try your question there and I'll be you get some answers.
Before posting, you should look for your coach number so you can add it to your message. (It has nothing to do with the chassis VIN.) Look for it on the Equipment Data Sheet on the inside of your pantry door--it's called Alfa VIN.
It's a 5-digit number that starts with a 7. In your case, with a 2002, it will be 70xxx. Posting your coach number, or at the very least the model year, will help a lot in getting good information. Alfa made running changes so not even every 2002 is alike.
I'll also note that there was a recall on your jacks many years ago because the jack pads would fall off. I think it just involved some new hardware and loctite. But if you're messing with the already, you should check yours to make sure they're tight.