Towertalk
[Top] [All Lists]

Re: [TowerTalk] Ham IV rotor

To: <towertalk@contesting.com>, "Dave Hachadorian" <k6ll@juno.com>
Subject: Re: [TowerTalk] Ham IV rotor
From: "Tower (K8RI)" <tower@rogerhalstead.com>
Date: Mon, 30 Aug 2004 15:23:14 -0400
List-post: <mailto:towertalk@contesting.com>
<snip>
When you inspect the rotor, check the four self-tapping
screws that hold the top and bottom halves of the housing
together. See if they are backing out, sheared off, or
missing. These screws are a major weak link in the Ham IV,
especially rebuilt units, because aluminum is removed from
the upper housing each time these screws are removed and

To reinstall these "self tapping" screws, insert them and then rotate them *backwards* while holding a light pressure on the screwdriver until you feel the "click" of them dropping into the threads. Then gently turn forward to make sure they are aligned with the old threads. Done carefully (you may have to repeat the back and fourth movement to get the alignment) the screws will not remove any additional metal. They should feel like any other screw with very little resistance until nearly tight.


This also works in almost any "self tapping screw" installation such as electrical panels.
It also adds life to the installations.


Roger Halstead (K8RI, EN73 & ARRL Life Member)
N833R, World's Oldest Debonair (S# CD-2)
www.rogerhalstead.com

reinstalled. If the two halves of the housing start to
separate, erratic meter movement is the first symptom.

See my previous postings on this subject.

Dave Hachadorian, K6LL
Big Bear Lake, CA
_______________________________________________

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.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk



_______________________________________________

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.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>