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Re: [TowerTalk] T2X Slow CCW Rotation Problem

To: towertalk@contesting.com
Subject: Re: [TowerTalk] T2X Slow CCW Rotation Problem
From: Mike <k4gmh@arrl.net>
Date: Thu, 06 Mar 2008 14:15:03 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Hello,

The problem with the rotor is the rod holding the series of gears 
used to turn the internal ring gear and the rotor had sheared off in 
two places.

When the rotor housing was first removed, noticed the drive gear was 
wobbling.  The wobble is the reason for the delayed start in the CCW 
direction as it wasn't engaging the ring gear at start up.  This same 
thing, post shearing off, happened three years ago and the T2X part 
was replaced.  Probably a good indication that its trying to turn too 
much ant.

At 04:41 PM 1/28/2008, Mike wrote:
>Need some ideas on where to look to find out why the T2X turning in 
>the CCW direction is slower than in the CW direction.
>
>Recently noticed my T2X takes longer to turn in the CCW direction 
>than in the CW direction.  Wind is not the reason as slow CCW 
>direction turning occurs even with ~0 wind.  The phase capacitor is 
>mounted at the T2X and the power and position indicator lines are, 
>respectively, #12 and #14 gauge wire.  The capacitors are several 
>years old and mounted in a water resistant box (small vent hole on 
>the bottom).  The T2X is ~ 250 ft from the in-shack control box.
>
>The T2X is turning a EF240X and a 4 el. SteppIR on a 2" dia., 1/8" 
>wall, 21 ft chrome-moly mast.  The mast and ant. weight are 
>supported by the T2X.  Sixteenth inch shim stock is used to center 
>the mast in the T2X. Thrust bearings are used to center the mast but 
>not for supporting the mast and ant. weight.  The T2X is mounted 8 
>ft from the top of the tower.  Several months ago the T2X's mounting 
>bolts and thrust bearing mounting bolts were checked for snugness.
>
>This CCW rotation slowness was just noticed this last month when the 
>weather turned cold.  The last several years the T2X rotated the 
>mast/ant. equally the same speed in both directions.
>
>         73,
>         Mike, K4GMH

         73,
         Mike, K4GMH 
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