Robin:
Thanks for the info. The McMaster P/N I would need (9961K44) would cost
me about $13, whereas the muffler clamps actually cost about $4 for a set.
However, I'm sure the industrial version would be more durable and safer.
73 de
Gene Smar AD3F
> Shaft collars work very well as well; search www.mcmaster.com or
> www.grainger.com .
>
>
> At 08:05 AM 12/2/2003, you wrote:
> >Barry:
> >
> > Before you loosen the rotator u-bolts, consider adding a clamp above
> > the top bearing. I wouldn't rely on the two set secrews in the TB-3 to
> > support the vertical load of the mast and antennas while you're fiddling
> > with the rotator. You can also add the angle and two u-bolts as Don
> > suggests to keep the antennas and mast from rotating.
> >
> >On my tower I have mast clamps that I made out of two face-to-face muffler
> >clamps. Insted of the u-bolt that came with each, I used two long
> >carriage bolts (all-thread will work also) to hold them together around
> >the mast. One set of clamps I have setting on top of the top bearing; I
> >don't rely on the bearing's set-screws for weight support. I have a
> >second set on the mast about an inch above the middle shelf. When I have
> >to remove the rotator, I'll lower this second clamp onto the shelf and
> >tighten it. This way I'll have two fairly heavy clamps that support the
> >vertical load of the mast and antennas while the bottom support (rotator)
> >is missing.
> >
> >You'll probably have to cut or grind a bit off the facing ends of the
> >clamps' saddles so they can fit around the mast without hitting each
> >other. Also, consider getting clamps one size smaller than the OD of your
> >mast. For my two inch mast I bought inch and seven-eighths clamps.
> >
> >GL es be safe de
> >Gene Smar AD3F
>
> Thanks,
> Robin
>
> _______________________________________________
>
> 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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_______________________________________________
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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