I have managed to keep my vacuum running strong with a complete disassembly and total cleaning every six months or so, as well as slashing and removing whatever has accumulated on the roller brush every week. So, I was disturbed when Jamie tried to clean our carpet, and the vacuum rattled something fierce. After six years of use, the roller brush's drive belt lost a few teeth, and was causing a terrible vibration as it struggled to keep the rollers in motion. Turns out you should replace it every six months. Oopsie!
After a week of waiting on a certain courier's "express" delivery, the replacement part arrived, and I was able to reassemble everything. I noticed a couple cracks in the plastic on the backside, and can you tell I'm a jet engine mechanic when I reinforced it with safety wire?
Now repaired, I tested it out by cleaning the apartment. It pulled two full bags of dirt, dust, leaves, carpet fuzz, and puppy fur out! Not bad for a piece of equipment whose manufacturer's warranty expired sixty months ago.
I usually end with some conclusion or moral. What could I pull out of this? Hmm, I guess it would have to be: "A vacuum cleaner is a power tool, and thus carpet cleaning is a man's job." I'm sure my Bride will have few objections.