Terry's Tutorials: Airbrush Cleaning and Care Part 1 

Basic maintenance and cleaning, as well as an occasional teardown, will keep your airbrush in ship shape and give you many years of consistent and enjoyable painting
Part 1: Basic cleaning and care, common to all airbrushes
Part 2: Teardoen and Super Clean: IWATA
Part 3: Teardown and Super Clean: Badger