How do you replace dc17 belt for Dyson vacuum?

Before you do anything make sure that the machine is unplugged.
1. Loosen 3 screws from bottom plate using flat-head screwdriver and remove it.
2. Wiggle roller until it pulls straight out.
3. Squeeze new belt and loop it over metal drive gear (you'll easily see the gear).
4. Keeping belt on gear, insert edge of roller through belt and rotate the roller while pushing it through belt until it is inside the belt, then continue rotating roller and sliding it over until belt is in position over gears on roller.
5. Insert roller into slots on that it came out of, reattach bottom cover and its done.