[TowerTalk] Supporting mast in 45G below thurst bearing

[Roger Borowski]

Get a measurement between the mast and one of the tower legs, Go to your
local muffler shop and Get a 2" HD muffler clamp, along with a 1 1/4"
Muffler clamp and have them weld a piece of 1/2 bar stock or something
close, of the appropriate length between the two clamp saddles. This will
hold the mast in position along with preventing the antennaes from
windmilling while the rotor is out! -=Roger-K9RB=-
-----Original Message-----
From: David Feldman <dgf@netcom.com>
To: towertalk@contesting.com <towertalk@contesting.com>
Date: Wednesday, October 27, 1999 6:43 PM
Subject: [TowerTalk] Supporting mast in 45G below thurst bearing


>
>I will have a need to replace the rotator in my 45G tower and am
>wondering if anyone makes/sells a clamp or other kind of gizmo that
>can be put on after the fact (i.e., now that the antenna is already
>constructed) that would provide a secondary lateral support for the
>mast near the (to be removed) rotator. In my case the rotator is
>about 8' below the thrust bearing, and when I would remove the rotator
>there is nothing else to keep the stack above the TB from toppling
>over (save for a rope attached up the mast and held under tension,
>which is now I did this last time). I'm sure I could make such a thing
>but I don't want to spend limited time resources that way and would
>prefer to find something already made (the mast, 2" and tower size,
>45G, are so common that I hope there is a commercial product sold that
>can be used for this purpose). As the new rotator may locate the mast
>above/below it's current placement, I am thinking that something
>which can be put in place then tightened as needed (or loosened
>as needed) would do the trick.
>
>TIA,
>
>73 Dave WB0GAZ dgf@netcom.com
>
>
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