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@contesting.com,
Subject: Re: [TowerTalk] Pinning my mast in rotator clamp
From: K7LXC@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@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
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