I successfully dismantled N4SU's 25 year old 96' Heights aluminum tower with one exception. The bottom aluminum section seems to stuck at the Steel fold-over base joint. I've searched the archives bu
I successfully dismantled N4SU's 25 year old 96' Heights aluminum tower with one exception. The bottom aluminum section seems to stuck at the Steel fold-over base joint. I've searched the archives bu
I actually was trying to save the entire thing since the pipes are part of the fold-over base which is fairly expensive. But you bring up a good point in that I believe the pipes can be replaced by u
Bill... those threaded base sockets are tough to come by. I have that same old steel clamshell base with the acme screw tiltover arrangement. You don't have to sacrifice the sockets. Just soak them w
Author: "Roger K8RI on Tower" <k8ri-tower@charter.net>
Date: Tue, 21 Jun 2005 22:22:44 -0400
As Jerry said, soak them with penetrating oil. Have patience. Give it a good soaking, every couple of hours, and test carefully. If they do not come loose easily, let set overnight. They teach this i
And after all that soaking with penetrant, take advantage of the different coefficients of expansion of the two materials. Aluminum will expand about twice what steel will at the same temp. Put a hea
Jerry is absolute correct on the physical relationship required between the steel and the aluminum for the differential expansion scheme to work. It never occurred to me that the aluminum legs would
Hi Glenn...that's a nice summary ofthe consensus! Will ask Dave's 86 year old widow to have a neighbor pre-treat the joints a few days before I go back up there. Thanks to all for the suggestions and
I had a "Z" brace weld break on a Universal aluminum tower from an antenna breaking and falling on it. I had it re-welded. It's difficult to spot the difference between that and the original welds an