At 06:50 PM 8/25/02 -0400, Jim White wrote:
>Yes, this was the first rotor to raise the spectre of a crack
>problem...seem to remember K5RC (perhaps Productivity Resources) marketed
>a replacement set of clamps which were very good but also very pricey -
>they may have been SS - but my memory is vague - this was about 20 years ago!
>
I'm not familiar with the Create clamps, but in the case of the Yaesu
rotators a lot of the problem arose from people's not understanding how to
tighten them properly. If you tighten the clamps on a mast but fail to
center the clamps on the top of the rotator, or if you tighten things from
the bottom up and then try to force the clamps to conform to a mast that is
off-center relative to the rotator, you can expect problems. In the later
production rotators, Yaesu included a set of instructions on how to tighten
things in sequence, in order to avoid this problem. I believe that if you
first tighten the clamps on the mast, then center them on the top of the
rotator, and only then tighten the rotator-to-plate bolts, you'll avoid
this problem.
73, Pete N4ZR
Sometimes a tower is just a tower
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