Jim
Jim I'm wondering which Aluma tower you have?
I have a 75 ft. HD and there isn't a pull down cable on it there are 2 more
cables that are called "scissor cables" these equalize the middle and top
section when going up and down.
I like the stop and use it all the time and take the tension off the pull up
cable at whatever height I choose. Also when fully retracted the center
section is blocked at the bottom.
Everybody should take a look at the Aluma website as they have some neat
stuff for computer controlled raising and lowering (internet) and a new 100
ft. tower.
73 Larry K1ZW
Message: 2
Date: Thu, 1 Aug 2013 21:01:39 -0400
From: "JE Brown" <W4LC@fuse.net>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Crankup tower safety question... (Crankup
Danger!)
Message-ID: <8D19C7DB67BF4039AA9EF2C94F549642@SUPERSPORT2009>
Content-Type: text/plain; format=flowed; charset="Windows-1252";
reply-type=original
My AlumaTower crank up has a positive pull down, and has a lock mechanism
whereby the tower can be locked at any cross member point at any height.
This is a spring powered piece that flips down and locks the sections
together when activated (or released).
Jim W4LC
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