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rd 65, I spent time on a couple of house vacuums. One is a Dyson given to us by our son & his family. They buy different appliances of various types and we get the old ones. A Dyson DC 07 corded upright vacuum cleaner needed some things serviced. I ordered the two disc filters off Amazon Prime, 1/3 the price of the OEM filters. A couple of youtube videos to ensure I was approaching the disassembly OK and into the guts of the machine I went. The two round disc filters were dirty, and not worthy of being washed/returned to use, hence the new filters.
I also removed hair from the beater bar & the small rollers in the beater bar holder ***'y. Three were frozen in-place, they got popped-out and the axles were sent to the benchtop grinder/wire brush for a quick cleaning of corrosion on the axles, and back together it all went. The machine works much better now!
I also did something similar on a Shark cordless 'stick' vacuum. It's labelled as a 'Power Detect,' and it seems to have an increase in the speed of the motor/beater bar when it encounters more debris to pick-up. When my wife bought it, I only had memories of old (think, 'last century') ni-cad cordless stick vacuums, and I didn't think it was going to be a good purchase. Surprise! It works well, and is light but powerful. It also has several accessories like extensions and brushes for different uses, and a crevice brush/tool to configure it to be much-shorter, for fitting into smaller spaces, and is useful for car/truck cleaning.
I figured that since I removed all the hair that was causing the small rubber wheels to drag, that it didn't need every single hair removed, so I didn't. These small rubber roller wheels didn't pop-out like the Dyson ones of similar size/location did, so removing every single hair was more-difficult, and I deemed the results I got w/the Shark to be 'good-enough.' Picture, below.
The beater also got cleaned as did the vanes which are part of the debris collecting mechanism, yielding enough dog hair to knit a Barbie sweater.
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