On 8/20/2013 12:22 AM, Bryan Swadener wrote:
IIRC, in the bigger picture, the anchor rods for my TX-472
weren't all that expensive, direct from UST. They are not
galvanized.
I like the LM470 base mount. They weld 19" X 3" X 1/2" ears to the #10
rerod coming up out of the concrete. IIRC these have 7, 3/4" holes to
hold the base and raising fixture. Once tthe concrete has cured the
base is mounted, then the bottom of the tower is pinned to those ears. a
hand winch easily raises the tower to vertical where hinge pins are
inserted at the top of the base and the tower is bolted in place. It
can be cranked up, or the base pins removed so the tower can be tilted
over to install, or work on antennas.
73
Roger (K8RI)
vy 73,
Bryan WA7PRC
------------------------------
Date: Tue, 20 Aug 2013 01:31:26 +0000
From: NØTT
Subject: Re: [TowerTalk] Base bolts for UST HDX-572MDPL
My 589 UST supplied bolts were not galvanized. McMaster has suitable
bolts.
I was curious if McMaster had those. The bolts I saw were
"low stength" and didn't comply with ATSM F1554 Grade 55.
Google is pretty much one's friend when searcing for a supply
of the higher strength bolts.
Charlie, N0TT
<snip>
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