Thread Number: 37034  /  Tag: Pre-1950 Vacuum Cleaners
D80 cr?
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Post# 395794   7/29/2018 at 17:14 by Lesinutah (Utah)        

lesinutah's profile picture
I have a question. I ran a few airflow tests yesterday.
My sentria was 132 about my tradition (new carbon brush bearings fan totally tuned up) ran 126 128 cfm. My royal backpack vacuum ran 118cfm 560 ran about 105 average. I imagine my d80 would run close to 115. So I looked at all armatures from cr to de are the same. I know royal let you drop in motor of your choice. My question is could you put a cr motor and armature in d80. I know carbon brush holders are maybe 1␀ bigger and I'd bore out hole to fit them. If you use all correct wiring coil and a correct switch could this be done. I don't know if the armature is much faster or rounder I think depth you would have to use a amodel fan use spacers accordingly. You would have same motor Kirby used through diamond edition and amps are 6 nozzle 7 hose.
I know d80 suction is almost unbeatable with 13 in nozzle. I don't know what cfm it would pull. I'd guess close to 125 130. Just a thought if anyone knows it would be appreciated.

Post# 395808 , Reply# 1   7/29/2018 at 22:53 by Lesinutah (Utah)        

lesinutah's profile picture
The carbon brushes hit on the wrong spot. I had done this before without knowing. This was using d80 coil and basically it toasted everything. It burned dark blue and yellow so it was hot.
Case in point there is a reason it hasn't been done.
So in case anyone wonders. You can't.
The motor changed slightly after legend 2 armature blades made of amodel it looks like. It probably is different length as it has to work with tranny.
It is same motor through sentria from classic but slight modification to fit g series. G series carbon brushes have brush holder built i. They are also larger than 1cr-l2 carbon brushes.
The g series motor has better housing and less air flow loss.
That is all.
I'll post a question tomorrow and answer it later in day just in case anyone gets any ideas and answers posts.

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