Thread Number: 22843
Smoke from carbon brush
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Post# 255474   11/7/2013 at 07:33 (3,794 days old) by Bobby ()        

Hi
I have a Kirby Sentria-II. It runs ok while on nozzle but as soon as I attach a hose, there is electic buring smell and lot of smoke.
I checked the Armature and it was damaged. I have replaced the Armature with new one and have put new carbon brushes but still the problem continues. What can be the reason??
I have not changed the front bearing, when I changed the Armature and brushes, will changing the front bearing help???

Please advise


Thanks
Bobby.


Post# 255480 , Reply# 1   11/7/2013 at 09:10 (3,794 days old) by jfalberti (Visalia, CA)        
Isn't that machine

jfalberti's profile picture

still under warranty?  I'd take it back to the Kirby dealer and have them repair it.  If it is smoking only on the high speed, then I would suspect a shorted field coil.  Another symptom would be the machine would get super hot.


Post# 255489 , Reply# 2   11/7/2013 at 09:41 (3,794 days old) by Bobby ()        

Thanks for your reply jfalberti. Yes it was under warranty and we got a replacement. You are right motor gets super heated. How can we get it resolved?? Can we use DIY method as I being in India, it will not be economical to send the parts outside country for repair.
Or can we go to some electrician shop for binding of motor.


Post# 255513 , Reply# 3   11/7/2013 at 12:38 (3,794 days old) by Bobby ()        

I don't know if I was clear enough in my previous message, therefore just want to clarify that I got an Armature replaced.

Thanks


Post# 255520 , Reply# 4   11/7/2013 at 13:41 (3,793 days old) by jfalberti (Visalia, CA)        
Bad field coil

jfalberti's profile picture
Well, that machine is just a little over a year old, so it should still be under warranty. If you continue to use it with a bad field, then the new armature you put in it is going to be ruined, if it isn't already. How did you get the armature covered under warranty? The field will have to be replaced, and possibly the armature again as well, if the picture you posted of it is the new armature. If you can't get Kirby service under warranty, then maybe you can find a shop that specializes in electric motors, and they could rebuild your field for you. But I fear that the cost to do that will be astronomical. Good luck.

Joe


Post# 256040 , Reply# 5   11/11/2013 at 10:59 (3,790 days old) by bobby ()        

Thanks Joe.
Considering your views, I have called for a new motor altogether. The above is of old Armature. I have not used the new replaced Armature yet and will keep it as spare, since I will be putting new motor.

Thanks for all your valuable suggestions.

Can you also guide me on following:
If I run my Kirby for approx 4 hours every day for 200 days in a year, then in how any year shall I change the motor.
You can also give few other maintenance tips.

Thanks
Pratish



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