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!
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
## Top section is #6 [18"]...and bottom section is #10 [37.125"] The UST
numbering scheme is the 1st digit is
the number of the top section. Remaining digits is the max height. UST also
makes a 589, and also a 489.
##They also make a 5106 [ 106' tall, identical to mine, but with a 6th
section, that's 15" across]. They also
make a 572/672/772. The 772 is like mine...minus the top section. You could
park a dump truck on a 772.
## the 589 is rated for 30 sq ft. The 689 is rated for 50 sq ft. The 772
would be way more than 50 sq ft. [70 mph]
Anyting with a bottom section #10 is big $$, and a lot heavier.[1006 lbs for
bottom section #10]
## 689 weighs 3250 lbs. 589 is abt 2440 lbs. Dunno why a lot of models
they make are not in the catalog/web site.
Texas Towers had the 689/5106 models listed on their site, but that was a
while back.
Jim VE7RF
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