how can I replace the power switch on a Dyson DC05?

Don't ever bypass a switch in a vacuum cleaner. If you do, every time you plug and unplug it, the current will arc from the outlet to the plug prong, putting a burn mark in both. These burnt areas on the plug and outlet cause resistance to build up. Resistance causes heat buildup, possibly enough to melt and short out the plug. If you want to continue to use it, repair it properly.

George
April 2013

The wheels just come off by pulling: if you have yellow inserts, prise them out first (with a small screwdriver, gently).

MaSh
March 2007

You don't have to remove the wheels, prising them out enough to get to both screws will suffice. There are a total of 5 screws, two behind each wheel and one central one.

Gordon
September 2006