Thanks to MaireadNye for the easy to follow guide. I used this to remove and clean the brush bar and its housing on a Dyson Animal 2 upright vacuum. The four screws securing the brush bar were not T10 Torx, but rather Phillips head, so no big deal. What took the longest amount of time was searching for my Torx tools before I began, which is unlike me. I usually grab tools as I go, but since only one was required, I decided to (unnecessarily) have it ready to go. I used vinegar first to get out a soy sauce type smell, but dish soap was what worked. Thanks again!
(And thanks to Dyson for making stuff like this user-friendly!)