[TowerTalk] Advice on 25G tower disassembly

[K7LXC at aol.com]

In a message dated 6/3/2007 9:25:31 A.M. Pacific Daylight Time,  
W2RU at frontiernet.net writes:

>  I have a related question.  I have to take down a  20-year old 120' tower 
of Rohn 25.  I thought the pucker factor  standing at the top of 30 feet 
of naked tower was pretty bad when it was  *new* tower and I was 20 years 
younger.  Now I'm *sure* I want to use  temporary guys for the take-down 
process.  However, I don't have  enough spare 3/16" EHS to form temporary 
guys.  What other kinds of  rope, line, or ??? do you think is 
appropriate (i.e., strong enough, with  limited stretch)????
 
    First, taking down a tower that you don't know  anything about is THE 
MOST DANGEROUS THING YOU CAN DO ON A TOWER so be very  careful and don't be 
afraid to just walk away from it if something isn't  right. 
 
    While 3/16" EHS is the spec for the completed,  under load tower, you can 
use non-EHS for the temporaries so you can use some  hardware store wire 
rope; e.g. 7x19 galvanized, etc. 
 
    As far as rope, just about anything will work.  I'd shot for 1/2" or 
larger. Use a trucker's hitch - 
_http://www.cabelas.com/information/cabelasfieldguides/KnotLibraryCampingKnots/TruckersHitch.html_ 
(http://www.cabelas.com/information/cabelasfieldguides/KnotLibraryCampingKnots/TruckersHitch.html)  -  to 
give you some mechanical advantage to tighten it up. There are rope grabs  you 
use with a comealong to really put some tension in the temporaries. In all  
cases - be careful. 
 
Cheers,
Steve      K7LXC
TOWER TECH



 



************************************** See what's free at http://www.aol.com.