I would definitely contact US Towers on this. You are risking a lot. That
is a monster tower that deserves your full attention to detail.
Keith NM5G
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Rick Karlquist
Sent: Tuesday, January 18, 2005 4:07 PM
To: towertalk@contesting.com
Subject: [TowerTalk] UST HDX5106/TRX100HD raising fixture question
I have a UST HDX5106 tower with TRX 100HD raising fixture that I have just
installed on the concrete base. I am almost ready to try tilting up the
tower. It occurs to me that the tower weighs
3000+ lbs, thus there will be 1000+ lbs load on each leg when
upright. What I am afraid of is that when the tower is nearly upright, it
is going to reach a tipping point and suddenly fall down into place with
1000 lbs of force. It seems obvious that I must do something like tie a
rope to the top of the bottom section of the tower and have it go around a
pulley that lifts up a weight. I am estimating that I need 200 lbs of pull
to counterbalance the tower (the 21 feet of height giving some leverage
against the 3 ft base).
Or perhaps I should put a car jack under the 3rd leg or something.
I've never read about this issue either here on the reflector or in the
nonexistent UST documentation. Perhaps on "normal" towers you can just use
an "armstrong" techique, but this tower is a little too big for that.
Any advice appreciated.
Rick N6RK
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|