Mike, indeed this forum is excellent.I know very little about the Montana workings and maintenance and between this forum, rallys, and individual research on the various companies that support the Montana line, answers are there. If your 2003 model is your first, I attached a Keystone website element that allows you to download or view the owners manual. It is general in nature but may assist you. Also the Montana Owners site, by clicking Home above has great resources. Good Luck and enjoy. The forum is helpful, concerned and always here to help us all. Dennis
http://www.keystone-montana.com/index.html?page=service