You might drop a note to W7KD to get his input. He is in OR, but has a lot of
experience in T2X repair and did one of mine recently. Very competent and
honest. In fact, during the repair of my last T2X, he kept me informed of the
problems he encountered by sending me photos as he went though it.
Don W7WLL
----- Original Message -----
From: "Ed Goss" <ed.n3cw@gmail.com>
To: "Towertalk" <towertalk@contesting.com>
Sent: Thursday, November 21, 2024 6:56:21 AM
Subject: [TowerTalk] T2X Rotator Brake Anomaly
GM Folks,
Early this year I had a T2X rebuilt by a highly respected
rebuilder. Part of the rebuild included new brake wedge, wedge dowel,
return springs, and lower T2X/brake housing. All checked out ok on the
ground before I put this back up.
The issue I have is that in moderate-to-very high winds, the antenna (3
el Steppir) turns about 45 degrees or so, perhaps more if I don't return
it to its normal resting place of due N. The turning is not mechanical
mast or antenna bracket slippage, but rotator turning. During actual
use, rotation from the ground all appears normal, and I hear the
expected brake solenoid activation and then wedge being pulled into place.
I know how the brake is supposed to work and how it is designed. This
anomaly has been observed since I reinstalled the rotator right after
rebuild earlier this year. With all new brake parts and a new lower
housing, I can't explain the slippage in high winds.
I am posting here in hopes that someone has experienced this anomaly,
and taken down their T2X for repair and analysis. I would be interested
in what was found to explain the slippage. There are several things that
could account for the problem, but I'd like to see if there is some
real-life findings and what the failure mode was. Thanks for info!
--Ed, N3CW--
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