Watch the video of Alex Snodgrass on tuning up your bandsaw:
http://www.youtube.com/watch?v=wGbZqWac0jU
I don't have my bandsaw set up yet. (It's an old Delta and I'm currently waiting until I have the money to buy a few things for it.) However, I have watched that video a couple times now. It's a highly recommended video and I have learned a lot from watching it.
I have also learned a lot about my bandsaw by disassembling most of it and seeing how everything goes together and how it all works. I think taking the time to get some really good hands-on learning on all the workings - inside and out - of any new to you tool is a wise thing to do.