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[TowerTalk] Antenna weight on rotator

To: <towertalk@contesting.com>
Subject: [TowerTalk] Antenna weight on rotator
From: n1lo@hotmail.com (Mark L.)
Date: Tue, 07 Sep 1999 13:07:38 GMT
Hello Jack,
As reported in prior posts, having some weight on the rotator is a good 
thing, as they are designed for a vertical load, which helps keep their 
bearings seated and wearing evenly. This also seems to help them resist 
lateral loads from wind, which try to push the mast back-and-forth down at 
the rotator level. Just be sure you are not over-loading the rotator 
weight-wise.
What I did was to install a second thrust bearing above the rotator.
During normal operation, I have the clamping bolts tight on the upper thrust 
bearing and loose on the lower bearing, with all the weight being taken by 
the rotator (I also have a Yaesu 800 SDX). For maintenance, I lift the mast 
and antenna assembly up just enough to clear the rotator, and tighten the 
clamp bolts on both bearings to hold it in place. Then I can remove the 
rotator.

--...MARK_N1LO...--

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