[TowerTalk] Lifting final 25G section with mast nested within.

[Roger (K8RI) on TT]

On 5/25/2014 6:16 PM, Grant Saviers wrote:
> Check out http://k7nv.com/notebook/id7.htm  for an analysis.  btw the 
> Rohn pole is 0.125" 6061 wall and rated for 45G @70# per section.
>
> Never use a pole as a tram tie off or pull at an angle against the pole.

I don't see anything suggesting that.
I use a 20', 2", 1/4" wall, 6061-T6 Gin Pole with a double mount (2 
clamps) to raise 45G sections and well over 100#.
The braided rope (don't use rope with a twist) goes through a pulley at 
the base of the tower so the go-fers pull straight out.  Use a proper 
hook for the pulley.  The rope to the gin pole should always pull 
straight down.

73

Roger (K8RI)


>
> Grant KZ1W
>
>
> On 5/24/2014 2:59 PM, Tom Hybiske wrote:
>> I was wondering if anyone had any opinion on lifting the final 
>> section of 25G, top stub and thrust bearing installed, along with a 
>> 30 pound mast nested within the section.  My gin pole utilizes a 12’ 
>> length of 6061-T6 aluminum,  2” diameter, 3/8 wall thickness.  The 
>> combines weight of the the assembly is close to 80 lbs.  The gin pole 
>> has been very sturdy during individual section lifts, but I don’t 
>> know if #80 is pushing it.
>>
>> Tom Hybiske, K3GM
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