In a message dated 98-10-18 13:15:14 EDT, wa3uum@juno.com writes:
<< Has anyone experienced rotator / plate mounting bolts loosening up,
to the point of falling out ? I have had 2 cases of this happening,
which were discovered this weekend.
>> Both rotators were T2X's. One turns a 2 element 40 meter yagi and
the other turns a stack of monobanders on 10-15-20 meters. Each rotator
was installed this spring. All mounting bolts had 1 flat and 1 "split "
lock washer on them. All were installed with a small amount of grease on
the threads.
Grease on the threads? That would cause LESS friction and probably
contributed to your problem. I would recommend using LockTight or other
fastener supplement to keep them working.
I have found loose rotor base bolts in Orion rotators. I don't think
I've run across loose Hy-Gain bolts.
>> Maybe a "star" washer would correct the problem ? Thoughts or
comments. >>
Couldn't hurt. An excellent reason to have an annual tower inspection.
Cheers, Steve K7LXC
--
FAQ on WWW: http://www.contesting.com/towertalkfaq.html
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|