Hi, go to www.sparesaver.com and look at their 'Help & Support' section. They have superb full instructions including colour photographs of troubleshooting Dyson problems. They are also the cheapest supplier of spare parts I have found on the internet.
Jack
January 2008
By a brush bar from the dyson website for £15.
ian
December 2007
You dont.
You will need complete new brush roller.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix vacuum cleaners.