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Re: [TowerTalk] HDX-89 rotator replacement - w/o tilting the tower over?

Subject: Re: [TowerTalk] HDX-89 rotator replacement - w/o tilting the tower over?
From: John Ammeter <>
Date: Wed, 29 Dec 2010 20:38:55 -0800
List-post: <">>
I was told the proper method is to raise the tower whatever distance is 
needed to expose the rotor.  Then place a support (it was said a 2" pipe 
long enough to hold the inner tower section high enough to expose the 
rotor) inside the partially raised tower.   You may need to use a 
coupler (not a union) to join two shorter pieces of pipe.  Use that pipe 
to support the inner section as you lower the rest of the tower ALL THE 
WAY DOWN.  Place supports under the tower sections so they can't fall 
any lower should the cable break.  The inner section will be extended 
out the top of the collapsed tower exposing the rotor for service.

I have not done this myself but it sounds good to me.

Do NOT put your hands or arms inside the tower to hold the pipe in place 
as you lower the tower.

John KE7JA

On 12/29/2010 8:28 PM, Brian Moran wrote:
> I have an US Tower HDX-89 tower, and I need to replace the Tailtwister 2
> currently nestled in the top section below the thrust bearing. Is it possible,
> and what's the procedure, to remove and reinstall a rotor w/o tilting over the
> tower? I will have removed the antennas and mast, but don't how far the tower
> must be extended to access the rotator plate.
> Thanks,
> Brian N9ADG
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