HI Alan,
I have a UST 589 myself..
The HDX-689 is a custom tower that (with reference to the 589) has one section
larger than the 589 lower/lowest section and one section less top section..
Said another way. if you look at the size of the 589 bottom section, you will
see that it is ~30 5/8" across one side.. and the TOP section measure ~15"..
The 689 bottom section measures ~35 5/8" and the TOP section measures 18".
The larger sections of the 689 is what gives it the extra wind load capacity as
well as the weight. The 589 is just under 2500#.. and IF I remember
correctly, the 689 weighs over 3500#..
73
Joe K5KT
--- On Wed, 9/29/10, towertalk-request@contesting.com
<towertalk-request@contesting.com> wrote:
From: towertalk-request@contesting.com <towertalk-request@contesting.com>
Subject: TowerTalk Digest, Vol 93, Issue 105
To: towertalk@contesting.com
Date: Wednesday, September 29, 2010, 12:00 PM
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Today's Topics:
1. Re: Motorized UST tower... very smooth and dead quiet! (Alan NV8A)
----------------------------------------------------------------------
Message: 1
Date: Wed, 29 Sep 2010 13:22:39 -0400
From: Alan NV8A <nv8a@charter.net>
Subject: Re: [TowerTalk] Motorized UST tower... very smooth and dead
quiet!
To: towertalk reflector <towertalk@contesting.com>
Cc: Jim Thomson <jim.thom@telus.net>
Message-ID: <4CA375DF.80700@charter.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 09/29/10 07:35 am, Jim Thomson wrote:
> The UST HDX-689 is still sitting in the driveway, blocked up, horizontal. I
> have a cracked flange on one of the
> drum bearings, that will require a gear puller to get the large chain
> sprocket off 1st. Then both drum bearings
> will be replaced at the same time.
<snip>
Can't find anything on the UST Web site about an HDX-689 -- only a 589.
Is yours an older model? A custom model?
73
Alan NV8A
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