Two muffler clamps holding a threaded quick link to the mast and a come-a-long
hooked to that has allowed me to jack up the 300+ lbs of antenna and mast.
Have hooked from the bottom of the mast too but that gets in the way when you
have to insert into the rotor.
Earl
N8SS
--- towertalk-request@contesting.com wrote:
------------------------------
Message: 6
Date: Mon, 25 Apr 2016 00:13:20 -0400
From: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Lifting a mast off the rotator
Message-ID: <571D9960.4000003@tm.net>
Content-Type: text/plain; charset=utf-8; format=flowed
I have a "pry bar" that the end will fit under the mast in my PST61,
The pivot point is only a couple inches from the end while the bar is
about 2' long, that gives me a 2: 22 multiple (11:1 ), or 400#/11 = 36#
on the lever to lift 400. Using that in my system allows me to lift the
mast about 1"
On my system when we installed the antennas, I simply used a u-bolt
clamp, to serve as an anchor point on the mast for a come along.this
lifted the mast with the antennas in place. The mast was then clamped
in place using a thrust bearing, A 1" block was placed on top of the
PST61, centered under the mast clamp the come along was hooked to the
u-bolt mast clamp and used to lower the mast into the rotator mast clamp
and onto that 1" block for spacing.
Possibly some of this may be of help giving you ideas.
73
Roger (K8RI)
---
End of TowerTalk Digest, Vol 160, Issue 82
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