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@windstream.net>
To: towertalk@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@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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