FWIW
I have had several of these towers (currently I have a MA-770). They need a
flexible coupling between the rotor and tower stub to compensate for alignment.
Perfect alignment is very hard if not impossible to attain. Steve Morris W7LXC
would be a good source of information on this topic.
Kim - K7IM
Sent from my iPad
> On Dec 11, 2018, at 09:00, towertalk-request@contesting.com wrote:
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> Today's Topics:
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> 1. Need help with MA40 installation and Tailtwister. (r young)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 10 Dec 2018 23:16:02 -0500
> From: r young <ryoung158@gmail.com>
> To: towertalk@contesting.com
> Subject: [TowerTalk] Need help with MA40 installation and Tailtwister.
> Message-ID:
> <CAJ17cTZusi7ysZuncMjhtAkPfJvS2Swgf+z8AjX2SthW5XP+Mg@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> I have an MA40 with MARB base and tilt feature so my Tailtwister is at the
> bottom.
> I don' know if the problem I have is new or existed and I missed it when
> installed.
>
> The rotator drive stub that protrudes out of the bottom should go in the
> the center of a pipe secured to the Tailtwister. A bolt goes through the
> pipe and the of the tower stub so the entire tower rotates.
>
> I noticed that the drive stub is not center in the middle of the pipe, so
> when the tower turns there is a wobble.
>
> I loosened bolts on the Tailtwister but it does not move from its platform
> on the MARB 40. I cannot find a way to center it. The drive hub is off to
> the side a bit and this causes the wobble.
>
> Anyone have any experience with this?
> .
>
> Like I said , I do not recall if I centered it when we put it up.
>
> I saw the wobble and became concerned.
>
> Hope someone can help.
>
> Tks very much.
>
> 73,
>
> Gerry
>
> K1NY
>
>
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> End of TowerTalk Digest, Vol 192, Issue 19
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