Question about Numatic Henry Bagged Canister Vacuum

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How do you change the carbon brushes on a henry hoover

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Posted on Jan 02, 2017

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SOURCE: How to change carbon brushes on henry

the brushes are easy to change, follow the directions in your book.

Posted on Nov 01, 2009

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SOURCE: my hoover smells of ammonia

Hello,
I too have a problem with a bad smell coming from my henry hound hoover, but thats probely because i haven't used a hoover bag. I took the cloth filter out,banged all the dust off, then sprayed it with 'RugDoctor' pet stain remover for carpets and upholstery. It still smells a bit, but not half as bad as befor. I have now ordered a reusable,zipable,washable cloth hoover bag especially made for Henry's. It cost £8.80 from ebay with free postage. Hope this helps Nikki.

Posted on Nov 21, 2009

SOURCE: my hoover smells of ammonia

clean it out da

Posted on Mar 20, 2014

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How to change carbon brushes


You need to know that very seldom will new carbon brushes alone `FIX`a motor in todays vacuums as they are higher RPM than those of 30 years ago.
On a salvageable motor a good rebuild procedure will generally include repacking bearings, cleaning suction fans and reseating new brushes with an abrasive seating stone at low speed with a motor run in device with variable voltage

That said, I have not done a HENRY in years but it likely will contain a generic AMTEK Lamb type motor as it is sold as more durable vac.
On a traditional vac motor, carbon brushes are removed by releasing a clamp over the brush. The brush holder will have either a flag terminal on it where the wiring will disconnect from the side, or a flat flag terminal which slides into a pocket on the carbon brush housing.
. If you are going to the trouble of replacing the brushes, remove and inspect the old ones for wear and chipping. Also inspect the commutator surface on the motor where the brushes contact. If there are any curved gaps between segments, or if the com is worn like an apple core , you need a motor complete.
If the motor has simply worn to the point where a brush has stuck or worn to nothing, you may be bale to reseat the new brushes, however any evidednce of BLUE sparks or noise is not a good sign . Best of luck. Post back if you need more help

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1 Answer

How to change carbon brushes on henry


the brushes are easy to change, follow the directions in your book.

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Electrical Burning Smell from Henry HVR200 Vacuum Cleaner


Hi! Highly unlikely that you need a new motor.  Highly likely that you need new carbon brushes.  The smell is caused by excessive sparking between the worn brushes and the copper commutator segments.  Most carbon brushes (and from memory I suspect this includes Henry's) have a copper wire buried in their last few millimeters, and you really need to change them before that becomes exposed.   The longer you run it like this, the more likely you are to damage the commutator, so change them sooner rather than later.  When you change the brushes, you can smooth off the commutator with very fine abrasive paper (the objective is to smooth it, not scratch it!), and then blow all the dust away (or **** it away if you have another vac, of course).  Incidentally, you don't say if you are using a paper bag in your Henry. Some people, because the top-hat filter is so good, try to manage without a bag.  This is false economy!  You should always use a bag. I hope this helps! I value feedback, so please remember to rate this response.

Feb 28, 2009 | Numatic Henry Bagged Canister Vacuum

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