The picture you're seeing suggests why Kirby recommends to empty the shake-out bag after every single use of your machine.
I vacuumed my house today with my Classic III. It emitted a strange grating sound in the motor, and I think these tufts of hair around the fan blades suggest why.
~Ben
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Post# 398992 , Reply# 1 9/30/2018 at 18:29 (2,024 days old) by Lesinutah(Utah)
I do know for certain that a disposable bag past half-full would restrict suction, thus causing all this hair to be stuck around the fan. This is what you should also pay attention to.
~Ben
Post# 398999 , Reply# 3 9/30/2018 at 19:45 (2,024 days old) by MadMan(Chicago, IL, USA)
Well they mainly say it because of the fiber material the bag is made from can collect bacteria and mites within the weaving, but if you get it too full it can fall back down through the motor as well too.
Post# 399018 , Reply# 6 9/30/2018 at 22:29 (2,024 days old) by gregvacs28(U.S.)
well, that wasn't as bad as I thought it would be.
Just think of A-LL the people you and I know DON'T empty after each use.
When I used to have canister or uprights, I would always remove the bag after each use, put it in a plastic shopping bag, and carefully store it in the freezer. This was to freeze and kill the parasites, bugs, germs,.... whatever. And, the vacuum gave off a nice "clean freezer" smell, next time you vacuum.
I'll only use a vented central vac now. The suction is great and having all the dust and heat and chemical off-gassing and whatever else expelled outside keeps one healthy.
But hey, It was a long time coming to that revelation.
Post# 399033 , Reply# 7 10/1/2018 at 00:22 (2,024 days old) by Gj3476(Prosper,TX)
Surprized the hair didn't get wrapped around the motor shaft before getting stuck in the fan.If there are nicks and cracks in the fan blades that can cause the hair to get caught in them.Plastic fans can get nicked more easily than the metal ones.
Post# 399049 , Reply# 10 10/1/2018 at 11:14 (2,023 days old) by KirbyClassicIII(Milwaukie, Oregon)
This is something that happens with fan first machines. The hair may be longer and it just gets trapped between the blades of the fan.
Not so much a defect, as just a need for regular maintenance. If you know you are vacuuming lots of hair, you may have to do it more frequently. As others said, if there are nicks in the fan, it can cause the hair to get stuck more readily.
Post# 399056 , Reply# 12 10/1/2018 at 13:03 (2,023 days old) by kloveland(Tulsa)
I've already seen this post on Facebook. Like others have said there is probably a nick in the fan and hair is catching on that nick. I've seen this before in Kirbys with nicks in the fan blade. Mostly on Heritage II machines with the gray fan.
I don't think it has anything to do with emptying the emptor unless the bag is so full that dirt is backing up into the fan chamber.
Post# 399057 , Reply# 13 10/1/2018 at 13:06 (2,023 days old) by rivstg1(colorado springs)
If your older pre-G5 Kirby has the Gray plastic Lexan fan, you should replace it ASAP with the newer White Amodel fan! The Gray Lexan fans crack with age and could fly apart causing major damage to your Kirby.
Post# 399066 , Reply# 15 10/1/2018 at 15:38 (2,023 days old) by gregvacs28(U.S.)
"..a engenius idea that is to freeze the bag..."
Thanks but I can't take the full credit for this. I was reading about people wanting to sterilize their kids toys and stuffed animal. They said put them in a plastic bag and put it in the freezer over night. boom
Logically, that would work for other things as well. I also freeze my compostable scrap food items to help break the cel walls before composting. It also helps to keep flies away.
Post# 399079 , Reply# 16 10/1/2018 at 20:17 (2,023 days old) by texaskirbyguy(Plano, TX)
I had a long-haired girlfriend who shed so much that her hair would clog up my Kirby's fan 2-3 times before I finished with the carpet. The belt would slip and the noise would increase. To her defense I was vacuuming once a month then. Empty bag or not, too much debris at once can get stuck in the fan or wrapped abound the spindle. She was proof of this...
I remember stopping the Kirby one day and she asked me what I was doing with the nozzle off and a knife in my hand. She watched as I cut a big glob of hair off the spindle. I gave it to her and told her that she gave the vacuum a hairball. She blamed the cats I never had...
Luckily, removing obstructions like this from a Kirby is easy. Imagine all that hair getting stuck in a cyclone chamber!
She clogged up the shower drain on a regular basis as well. I am surprised she never went bald!
After she moved on, I never had such problems anymore, even when vacuuming every 4 months!
Post# 399082 , Reply# 17 10/1/2018 at 21:27 (2,023 days old) by Lesinutah(Utah)
If I remember right this is a metal fan not grey lexan. If metal caught on fire let's just say unless you are sucking up burning colles with sealed chamber is almost impossible. His bearings in motor could spin out pop off bag but he isn't going to burn down the building.
Ben
I'm wiring tradition back to stock. My d80 single speed. I gotta g series hose cut off small lip and glued on d80 adapter.
My tradition was made in may of 82.
Les
Post# 399090 , Reply# 18 10/2/2018 at 00:43 (2,023 days old) by MadMan(Chicago, IL, USA)
Hate to break it to you, but freezing does not kill bacteria, it just puts them to sleep. I suppose at the very least, it would prevent it from festering while frozen, but as dust tends to be very dry, bacteria wouldn't be able to propagate anyway.
Post# 399095 , Reply# 19 10/2/2018 at 02:28 (2,023 days old) by gregvacs28(U.S.)
Sleepy bacteria is better than ones copulating pointlessly waiting to escape the paper bag and be shot out the exhaust holes of the vacuum, anxious to be inhaled by an innocent human or allergic aged cat.
Actually, freezing can do quite a bit of damage, so I've heard. It doesn't kill everything, but quite a bit. Entire animals for example.
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Post# 399114 , Reply# 20 10/2/2018 at 14:42 (2,022 days old) by Rivstg1(colorado springs)
the freeze can kill the dust mites....that eat our skin cells....also, would keep the food particles that were sucked up from feeding organisms thus....smells
Post# 399117 , Reply# 21 10/2/2018 at 16:06 (2,022 days old) by compactc9guy(Bathurst NB)
lots of stuff can go in freezer. As was mentioned, kids toys. People put those frozen ice/hot things in there.
You wouldn't throw out a vacuum bag after one usage. One puts it in a plastic bag to keep any latent dust contained. I've never had a problem.
It works great. It's easy to try. I like that fresh smell that comes out when you replace the bag in the cleaner and start vacuuming. Much better than musty moldy yuck that some people get.
Post# 399127 , Reply# 23 10/2/2018 at 21:03 (2,022 days old) by MadMan(Chicago, IL, USA)
I may have solved another part of this large problem: always clean the brush roll after you're finished using the Kirby. Left unchecked, too much hair and lint around the brush roll will make it a bigger problem and thus reduces cleaning efficiency, and later on will cause all this hair and lint to get stuck in the fan chamber.
~Ben
Post# 399182 , Reply# 26 10/4/2018 at 19:25 (2,020 days old) by gregvacs28(U.S.)
"....always clean the brush roll after you're finished using the..."
power nozzle, or for that matter any brushed attachment like a floor or dusting brush. It's like this: when one uses a paint brush, tooth brush, vegetable brush, etc. you clean those (or should be). The same goes for a vacuum brush. Failure to remove old hair and string only inhibits a vacuum brush and can damage the roll or possibly the power head.
Here's some pics of my reconditioned 1983ish Kenmore double-brush power nozzle. I wish I had the "before" pictures. I got it with some other vacuum parts and I don't think the seller even knew what it was.
It looked really bad. It had a big spot of paint dripped on the top, was dirty from sitting many years, the neck was cracked (though oddly still useable), the cord was pulled out, there was so much sand and lint in the motor it made a horrendous sound, and the brush roll was just covered with string, a couple of pieces of thin guage wire, hair, and who knows what else.
After thoroughly taking it apart, soaking plastic parts and carefully cleaning, removing all the gunk from the motor and lubricating it, and of course taking a scissors and cutting length-wise and removing all the junk on the brush roll, removing and cleaning the brush strips, etc. . it now functions and sounds as it should. The brush roll is black painted wood, which was scrubbed and waxed; but look at the paint worn off by the stuff that was on there.
It still bares the scars of damage done. How in the world could someone not know there was something wrong with what they were doing? Look at the gouges in the plastic underneath. Thank-fully, those don't affect cleaning or suction. Incredibly, it still has both of the thin plastic support bars that are known to break.
Always clean your brushed attachments after each use. It only takes a few seconds with the wand of the hose going back and forth over the brushes. And a brush roll with string or long hair wrapped around it will often clean itself if you simply cut with a scissors, length-wise through the mess, and then vacuum a few strokes on carpeting. The brush roll can throw off the cut pieces and suction takes it away.
I love taking stuff like this and bringing it back to full functionality, or as close as it can get.
Clening brushrolls after use--the hairs,strings,threads can get caught in the bearings at the ends of the roll tearing them up-and the housing,too!And for canister powernozzles-puts a stress on the motor and belt.They can overheat.The belt will break and the motor can burn out.
(Milwaukie, Oregon) 
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