[TowerTalk] Raising the Mast w/Antennas

[Tower (K8RI)]

With over 600# of mast and antennas and raising the mast 30 feet I had no
problem with binding. OTOH I use two thrust bearings. One at the top of the
tower and one about a foot above the top of the rotor which is about 20-25
feet down inside the tower.

>Using a come-along to raise the mast through the thrust bearing(s) after
the antennas are >installed is a problem, as the mast binds as it is pulled
slightly to the side as raised.  To >overcome that situation, I put a metal
pulley upside down into the mast, and connected the >cable to the come-along
at the opposite side of the tower from the hoist..  .. .. so the mast was
>pulled more or less straight up....worky worky!

And you gain a 2:1 mechanical advantage.

Roger Halstead (K8RI, EN73 & ARRL Life Member)
N833R, World's Oldest Debonair (S# CD-2)
www.rogerhalstead.com

73 --- Mark .. AA6DX   Eureka, FAR NORTHERN CALIFORNIA...
_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.

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