[TowerTalk] FWD: Raising and lowering the mast

[K7LXC@aol.com]

In a message dated 07/27/2000 8:01:14 PM Pacific Daylight Time, 
k1ir@designet.com writes:

> Anybody have a good solution for raising and lowering a long mast in a Rohn 
> 25 tower? The mast is 1/4" chromoly 24 feet long. The rotor is a 
TailTwister on 
> a rotor shelf 8 feet down from the top of the tower. A TB-3 thrust bearing 
is 
>  mounted on a rotor shelf immediately above the rotor. Another TB-3 is 
> located on the flat-top. 16 feet of mast extends above the top of the tower.
>  
>  Objective is for one man to be able to easily lower and raise the mast 
about 
> 10 feet in order to install and maintain HF antennas anywhere on the mast.

    Hmm, easily is the operative word here. The answer is basically no. You 
can use a comealong (cable puller) but it's kind of a pain with 25G. The best 
thing to do is to make some temporary steps out of angle iron and U-bolts and 
climb the mast using them when you need to go up the mast. Just remove them 
on the way down the mast when you're done.

Cheers,   Steve    K7LXC
Tower Tech 

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