K7LXC at aol.com K7LXC at aol.com
Sun Feb 25 12:06:58 EST 2007

In a message dated 2/23/2007 6:29:42 P.M. US Mountain Standard Time,  
towertalk-request at contesting.com writes:

>  I need to add shims to my rotator to better center the mast  for concentric
rotation.  Not having done this before, I am curious  what others have used
for shims and what type of material they used.   Thanks
    You didn't mention the rotator but I'll assume  it's a HAM IV or 
TailTwister. I've never worried about shimming them unless  there was some bind in the 
    The rotator  plate/mast/thrust-bearing/bushing/taper-top/whatever system 
is not precise so  you probably don't have to worry about it. Nonetheless the 
previous responses  suggesting shim stock or other options are all good ones. 
Steve    K7LXC
Professional tower services for hams
Cell: 206-890-4188

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