[TowerTalk] Pinning my mast in rotator clamp

[john at kk9a.com]

Steve's answer is perfect- "Do what the manufacturer says".  Yaesu mast 
clamps are aluminum and can break if you over tighten them.  Using the 
supplied bolt properly secures the rotator to the mast without having to 
over tighten the clamp bolts.

John KK9A


To: towertalk at contesting.com,
Subject: Re: [TowerTalk] Pinning my mast in rotator clamp
From: K7LXC at aol.com
Date: Wed, 11 Mar 2009 21:57:21 EDT



In a message dated 3/11/2009 6:45:58 P.M. Pacific Daylight Time,
towertalk-request at contesting.com writes:

>   My Yaesu G-1000DXA manual say's to drill thru the mast  & put a bolt 
> thru
the rotator & mast to keep it (the mast) from  turning in the clamp. I was
told to do a survey here & get everyone's  input on doing this as it might 
be a
bad idea..


    Well, without being pinned, it would probably  move harmlessly out of
alignment. When you pin a mast to a rotator you're  transferring the mast
torque
directly to the rotator and the next weak point  in the system; usually 
gears.

    Since Yaesu gave you a long bolt with the rotator  and the manual says 
to
do it, I'd follow the LXC Prime Directive to "DO what  the manufacturer 
says."

Cheers,
Steve    K7LXC
TOWER TECH