On 1/29/2019 9:08 AM, Ralph Mowery wrote:
In article ,
says...
For the same reason out of balance tires typically only show up at certain
speeds. They have certain speeds where the characteristics of the system
allow it to resonate. Kind of like a tuning fork will resonate at a
certain frequency. You can fix it by placing small weights, like maybe
one or more dimes, on one of the blades by trial and error. There should be
instructions for doing that for that fan or if not, follow instructions
for a similar fan.
I agree that it is somewhat out of ballance. I had a car that a front
tire became out of ballance. At any speed except from about 55 to 60
mph it was fine as soon as I got in that speed range the stering wheel
would shake so bad I could hardly hold it.
It could also be one of the blades is not in alignment with the others.
Â* Y'all need to re-read my post , the blades were checked for alignment
by measuring from a point on the ceiling , all were within 1/16" of the
same - 35 1/16 to 35 1/8 . The fan was then balanced with the included
kit according to the instructions at the highest speed setting . At
EVERY speed but the nest to slowest this fan is rock steady , not a
quiver . If the fan blades were not balanced or the blades were not in
the same plane it should wobble at ALL speeds , not just one . As I said
, unless you look for it the wobble is so slight that you'd never notice
it .
--
Snag
Yes , I'm old
and crochety - and armed .
Get outta my woods !