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Re: [TowerTalk] TowerTalk Digest, Vol 263, Issue 15

To: towertalk@contesting.com
Subject: Re: [TowerTalk] TowerTalk Digest, Vol 263, Issue 15
From: N4IJ <dougn4ij@gmail.com>
Date: Thu, 21 Nov 2024 17:34:17 -0500
List-post: <mailto:towertalk@contesting.com>
Ed, I have a Ham IV rotor that acts this way. I have not dropped it to
investigate
but I am guessing that the wedge solenoid works, but I am also guessing that
on mine the spring that pulls it back into the wedges is broken or off. I
can hear the solenoid
pull in. I assume the T2X works similarly

Doug N4IJ

On Thu, Nov 21, 2024 at 12:50 PM <towertalk-request@contesting.com> wrote:

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> Today's Topics:
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>    1. T2X Rotator Brake Anomaly (Ed Goss)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Thu, 21 Nov 2024 09:56:21 -0500
> From: Ed Goss <ed.n3cw@gmail.com>
> To: towertalk@contesting.com
> Subject: [TowerTalk] T2X Rotator Brake Anomaly
> Message-ID: <2f868017-966b-4082-ad44-8f7f2ff859b6@gmail.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> GM Folks,
>
>  ???? Early this year I had a T2X rebuilt by a highly respected
> rebuilder. Part of the rebuild included new brake wedge, wedge dowel,
> return springs, and lower T2X/brake housing. All checked out ok on the
> ground before I put this back up.
>
> The issue I have is that in moderate-to-very high winds, the antenna (3
> el Steppir) turns about 45 degrees or so, perhaps more if I don't return
> it to its normal resting place of due N. The turning is not mechanical
> mast or antenna bracket slippage, but rotator turning. During actual
> use, rotation from the ground all appears normal, and I hear the
> expected brake solenoid activation and then wedge being pulled into place.
>
> I know how the brake is supposed to work and how it is designed. This
> anomaly has been observed since I reinstalled the rotator right after
> rebuild earlier this year. With all new brake parts and a new lower
> housing, I can't explain the slippage in high winds.
>
> I am posting here in hopes that someone has experienced this anomaly,
> and taken down their T2X for repair and analysis. I would be interested
> in what was found to explain the slippage. There are several things that
> could account for the problem, but I'd like to see if there is some
> real-life findings and what the failure mode was. Thanks for info!
>
> --Ed, N3CW--
>
>
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> End of TowerTalk Digest, Vol 263, Issue 15
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