[TowerTalk] Rohn 45G foldover questions

[Andrew B. White]

On Wed, 21 Jan 2004 mahlonhaunschild at cox.net wrote:

> I have a couple of questions pertaining to Rohn 45G foldover tower design & installation.  I have studied the most recent Rohn installation guide for the 25G and 45G towers.  My 45G foldover tower will be 68 ft, installed by the book (e.g. two sets of four guys each, per the guying diagram in the book.  Five foot deep by three feet square concrete base, w/UFER ground rebar cage).  And actually it's the book that prompts my questions, as you will see:
>  
> 2.  Are the two bolts used to bolt the hinge together at the shipping flanges during installation (but removed to fold the tower over) to be reinstalled after the tower is raised back to the vertical position, or are the two hinge 
> bolts plus the boom sufficient to keep everything in line during normal use?  (this assumes that the bottom of the boom is pinned where it encircles the tower leg).  The book says to remove the bolts to fold the tower over, but never tells you to put them back after you put it back up. Putting those two bolts back in their holes might be a bit difficult...
> 

When I installed my Rohn 25 foldover in 1992, I removed the shipping bolts
and never put them back.  When the boom is up against the tower, the hinge
section is held tightly closed.  Since I'm out in the country, I added
four Phillystran guys near the top of the tower because the upper section
wiggled around in the wind without them.

73, Drew

*-----------------------------*-------------------------------------*
|    Andrew B. White  K9CW    |    internet: k9cw at prairienet.org    |
|    ABW Associates, Ltd.     |   phone/fax: 217-643-7327           |
*-----------------------------*-------------------------------------*