[TowerTalk] pushing a mast up at the top of the tower

[Mark Robinson]

I believe that it is normally done with a come-along but when we did my 
tower, we lifted the mast up with a gin pole, pulled up by my farm tractor 
and we were able to raise and lower the mast using the tractor/gin pole 
arrangement. We had a snatch block at the bottom of the tower. In your case 
a come-along attached to the tower by means of a pipe clamp would seem to be 
the way to go. Another pipe clamp on the mast just above the top thrust 
bearing should stop the mast from dropping back when you change the clamping 
position of the come-along

Mark N1UK



----- Original Message ----- 
From: "Steve K7AWB" <k7awbgoog at gmail.com>
To: <TowerTalk at contesting.com>
Sent: Sunday, 10 July, 2011 4:06 PM
Subject: [TowerTalk] pushing a mast up at the top of the tower


>I have a 16 foot long, 2" OD steel mast about 2 feet out of the top of a
> Rohn 45 flat top section waiting antennas.  I plan to put my 2-element 40
> meter Hygain yagi at the top.  Then, I have to lift the mast (98 lb) and 
> the
> antenna on it up about 10 feet, above the future rotator spot, in able to
> mount the OR-2800 rotator.  And then slowly lower the mast/antenna into 
> the
> top of the rotator.
>
>  What is the best way (s) to lift up the mast /combination?  Right now it
> it is secured with a TB3 bearing.  And I have another rotator plate with a
> sleeve, slightly above the future location of the rotator, that will keep
> the mast vertical when out of the rotator.  Once the mast/40 meter antenna
> is secure in the rotator, I will add the 6-element Force 12 20 meter yagi 
> 2
> feet or so above the top of the flat plat top section.
>
>
> 73
> Steve Sala
> K7AWB
> DN17es
> Nine Mile Falls, WA
>
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