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.
There are a few stores where an individual can get a Dyson DC17 Animal Cyclone vacuum cleaner. They would include Amazon, Ebay, Dyson's official website and Walmart.
I personally believe that the Dyson DC17 is the best vaccum for Shag rugs.
Bissell, Dyson, Eureka, and Hoover all make great vacuums specifically for pet hair. The Dyson DC17 Animal Vacuum Cleaner for Pet HAIR recieved the best rating of all.
Some retailers that sell a Dyson Slim cordless vacuum are Canadian Tire and Sears. They often have days with special discounts and each offers loyalty points. Canadian Tire also price matches for a better deal.
"The Dyson DC1 has a motorized brush bar, quick-draw telescopic release, cyclone technology, a mini turbine head, and a low reach floor tool. It stands uprights and is easy to use."