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[TowerTalk] LM470 base dimensions

To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: [TowerTalk] LM470 base dimensions
From: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Sat, 19 Oct 2013 20:30:48 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>

I'm getting ready to do the final welds on the base. Unfortunatel there are no specific dimensions given in the paperwork.

The outside distance on the tower "ears" is 23". I'm using the raising fixture to hold the base "ears" for building the rebar cage. When bolted to the raising fixture the "inside" dimension between the ears is 23 1/4" That leaves an 1/8th of an inch space between the tower ears and the base ears on each side , or 1/4" total.

I'm assuming I should space the base ears in from the raising fixture with washers, to give no more than 1/32nd of an inch clearance so when the bolts are tight the tower and base ears will mate flush and tight.. This should allow for a snug fit, but not interfere with raising the tower and give face to face contact for a good holding force when the bolts are tight ( snug plus 1/2 turn)

Comments?

73

Roger (K8RI)

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