Scotty:
This subject was discussed on TowerTalk several years ago but, unlike true
north and owls, has not been seen since. I was unable to find any postings in
the archives - probably used the wrong key words. What I recall of the
postings, which I applied to my own tower installation, is the following:
Loosely install all components of the rotator, bearing, mast and shelves
on the tower. Tighten the bearing's setscrews against the mast. Then tighten
the following components in the order shown: mast to rotator clamp; rotator to
shelf bolts; shelf to tower bolts. This sequence ensures that any small
misalignments are compensated for by the next stage of tightening. I followed
this procedure and to this day, five years after initial installation, my
rotator turns the mast freely without binding.
As another precaution against binding, I installed a self-aligning
bearing, not a TB-3. This commercial bearing allows for up to 2 degrees (I
think) of axial misalignment betweeen the bearing and the shaft/mast.
Did I miss anything, fellows?
73 de
Gene Smar AD3F
-------------- Original message ----------------------
From: w7psk@w7psk.net
> The two towers Ive had, the rotor was mounted on a mast and antenna above
> that.
> So I know not the following.
>
>
> My 9ft GM is built and I have the Thrust Bearing on top.
>
> Question, What is a good procedure to ensure thrust bearing to rotor
> alignment?
> Never had an inside mount like this.
>
> So what do the pros do ?
>
>
> Scotty W7PSK
>
>
> PS, this group is a wealth of info and I for one appreciate the time you guys
> take to answer questions.
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