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Re: Kirby fan on motor
I am assuming that you are trying to remove the fan. On newer models there is a cut on the shaft (rear of the motor - next to comutator) that allows to use a wrench to hold the armature, it may be very similar on older models. maybe a hole instead of the cut... You would have to access the rear of the motor though. Let me know if you cant find it - I'll take one Heritage apart here in the shop and will see.
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When the fan finally cracks and even before it spins out of balance so your motor brushes have poor and intermitent contact with the armature and could have broken the motor housing possibly damaged the field. But ruined NEVER. That machine will run 100 years :)
The armature that holds the fan on is reverse threaded. It turns to the right to remove it. You can put a nail or nail punch in the hole on the armature and tap it gently to the right. this should loosen it enough to unscrew. There's a washer, then the fan, and a spacer that fit over the shaft.
First remove the handle, next remove the screws attaching the cord, and switch trim plate. The small screw and knob on the handle pivot must be removed to remove the switch trim piece - insert a flat screwdriver into the small slot in the plastic and pop the trim off to expose the rear motor shell screws. Remove the four screws holding the upper motor shell in place to expose the fan housing screws. Remove the five screws holding the fan housing in place, noting their positions. Pry the fan housing off to expose the fan. Hold the fan in place while turning the belt pulley CLOCKWISE to remove it. If the armature turns, it must be held in place with an open end wrench (about 9mm). There are flat spots on the armature just in front of the commutator bars. Pull or pry the fan and associated washer off the armature shaft. After replacing the fan and pulley, put a bead of silicon sealant on the fan housing and replace all parts in reverse order of removing.
2.How come it continues to rotate? Motor armature consists of multiple coils and just some of them burned so even though it keeps spinning it does not function properly.
3.Do I need to replace the armature? We have switch replacement instructions HERE and they will take you as far as accessing the motor. We do not have motor assembly instructions yet but if you get that far - motor is not that hard to reassemble. You may have to spend some time getting tolerance ring back in and make sure you install finger spring properly.
I resolved the problem .I found a way to hold the armature shaft still while I unscrewed the pulley drive nut ,which must be removed in order to remove the vacuum fan.
> There probably is a special tool somewhere that would fit over the armature ( the metal part that spins on the shaft of the motor inside the stature) to hold it still ,but since it was suspiciously omitted from the rest of the fan blade parts ,I had to fabricate one myself.
>I happen to have three ,steel blade ,broad paint scrappers which were about 2 to 3 inches wide and thin enough so there blades fitted nicely into the groves that run the length of the armature without damaging it, as would be the case with a narrower screw driver blade .
>Bracing the handles of the 3 scrapper blades in a slot that was in the side of the case ,which was probaby its' intented purpose, held the armature shaft still while I unscrewed the fan nut which happened to have a reverse thread.( turns clockwise to loosen) .
Take the bag asm. and handle off. Then remove the plastic strip covering the switch, remove the screw there, remove the 3 screws on the housing, turn it over and loosen the screw near the back, the housing should come off. Then remove the screws on the back of the fan casing. You shouild be able to get to the fan, hold the fan and turn the spindle to the right to take off. If it would turn off, then you may have to lock the armature so it can't turn to move it. Then re-asemble in reverse.
http://geeksquad.fixya.com/ThreadView.aspx?prdid=0&thid=667246 Generic problem for all Vacuums Kirby making clicking noise Posted by jenad on Jun 12, 2008 In the middle of vacuuming my car out, my Kirby Sentria began making a loud clicking noise, sounds like it's coming from the motor. It's never done this before. I checked for debris in the fan and removed the bag and checked there too. The vacuum still works, just not sure if I should continue to use it. Hello, I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. The clicking noise sound s to me that it is coming from the motor like you said and I am not sure how new the Kirby vacuum is, but if it is still under a factory warranty it is a good idea to have Kirby take a look @ the vacuum because it could be the fan, carbon brushes or something could be hitting the armature making a clicking sound and if it is the armature then I would get it check ASAP. Feel free to contact your local factory authorized Kirby dealer in your area and also I will give you the website and the customer service phone # to Kirby for further assistance. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions. http://kirby.com/Customer Service – United States & Canada1-800-494-8586 Hours 8:00 am to 5:00 pm (EST)U.S. & Canada Fax # 1 (216) 529-6146 Mail To: Consumer Relations The Kirby Company 1920 West 114 Street Cleveland, OH44102 Thanks, Don the Vac Man Go Ahead. Use Us.
I take it the armature is not moving at all when you are turning the pulley(to the right, is right). You may have to pull the motor asm. out, remove the 4 scres and nuts off of the front bearing plate and pull it out along with the armature. I can't rmember if there is enough romm after pulling it out, from the inside to cut the shaft off with a hack saw. It is either that or replace the front bearing plate along with the armature.
The bearings, there are 2 of them can be replaced. You will have to take the motor apart so you can get the armature out, one bearing is in the bearing plate, the other is on the end of the armature. If you do this, be sure to mark where each wire goes into the switch. If you mix up the 2 coming from the motor, it will run backwards.
You have to take off the top cover, then the handle pivot. Look down at the back of the armature you will see that it has a flat spot, you use a small vise grips or pliers to hold it, turn the belt pulley to the right if I remember right and turn the pulley off. If it won't come free, use a couple of flat blade screwdrivers and pry up to pop the fan off. Then put it all back together.