In a message dated 9/3/02 4:04:49 PM Pacific Daylight Time, K3SV@aol.com
writes:
> I am helping a ham with a TX472 that has a new Raising Fixture, TRX 80HD.
It
>
> is attached and ready to use, lowering the nested tower for maintenance
and
> antenna work. The raising fixture has never been used and I am looking at
> the gear box wondering what keeps the tower from "taking off" when you
start
>
> to let it down. There appears to be a clutch mechanism in the gear box
that
> will prevent the tower from lowering itself at a high rate of speed. Has
> anyone used one of these? and is the clutch mechanism the "safety" device
> during lowering, or is there something I am missing.
Nope. Everything is internal and works FB. I haven't seen any failures
for any reason although I'm sure there are some stories out there.
Cheers,
Steve K7LXC
TOWER TECH
|