If you're having a problem with your vacuum's clutch and need it replace, don't go pay someone for their service, do it yourself. Not only will you be saving yourself an arm and a leg, but you'll be able to understand how your machine works and what to do next time it breaks.
This tutorial takes it nice and slow and makes sure that you will be able to fit the clutch to a Dyson DC04 vacuum cleaner. Remember, before attemtping this make sure the machine is NOT plugged in. Good luck, be safe, and enjoy!