[TowerTalk] Crankup Danger

[EZ Rhino]

This is one big aggravation I have with USTowers and some other Mfg's...the lack of any stop blocks to support the moving sections.   My LM470 has stop blocks at the top of some of the sections (where you can't see them) but the tower sections don't really rest on them when it is lowered.  There isn't any strength issue with climbing the tower per se, (it's not going to suddenly fall over with your weight on it),  it's the issue with the tower sections moving (falling) and you losing fingers/toes.  A good friend of mine, whose call sign will remain unstated, was climbing his HG52SS which he thought was fully nested.  Well, it wasn't.  Somehow one or both of the inner sections were hung up and came down on his foot.  Made a mess of his toes and he was lucky that he didn't lose them.  He still has the shoe as a reminder. 

So the danger issue(s) are:  1) tower section movement, and 2) the same issue as working on any tower...the height above ground factor.  Don't EVER climb a crank up if it is extended.  The lay-over fixtures are great, although very involved to do (lots of unbolting) and takes a lot of effort/cranking.

Chris
KF7P









On Aug 1, 2013, at 17:26 , Steve Dyer wrote:

I think crank-ups with positive pull-down are never fully "lowered" and are still supported by their lift cable.
I know this is the case with my LM-470.
73,
Steve




________________________________
From: Patrick Greenlee <patrick_g at windstream.net>
To: towertalk at contesting.com 
Sent: Thursday, August 1, 2013 11:45 AM
Subject: Re: [TowerTalk] Crankup Danger


Wouldn't you ordinarily lower a crank-up tower before climbing? If it were a 
tilt over as well wouldn't you tilt it over instead of climbing it?

Patrick AF5CK

-----Original Message----- 
From: Wilson
Sent: Thursday, August 01, 2013 1:22 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Crankup Danger

Well, if the tower should telescope while you are on it, the shearing off of
fingers and the front of your feet might be considered an undesirable
possibility.
If you are on an upper section when the collapse occurs, you might get by
with just some foot damage and being thrown to the ground as the section you
are on drops into the next one down...
Your plan is much like the old EZWay towers.  There's a book for the two
section 40 footer on BAMA.      http://bama.edebris.com/manuals/ezway/rbs40
WL

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