1/2" heavy duty thimbles are required by Preformed Line Products for use with
their Big Grips for 1/4" guy wire and Phillystran.
Use a 7/16" shackle to make the transition from the thimble to the turnbuckle.
---- Original message ----
>Date: Wed, 30 Aug 2006 19:47:29 -0400
>From: "Dick Green WC1M" <email@example.com>
>Subject: [TowerTalk] Rohn 55 thimbles and turnbuckles
>To: "Tower" <firstname.lastname@example.org>
>Reviewing the Rohn parts list for a 110â 55G tower @90-100MPH, I decided to
>go with Ââ EHS for all three levels (actually, 6700lb Phillystran with Ââ
>EHS leaders. Following the parts list, I ordered 3/8â heavy-duty thimbles
>(3/8THH) and Ââx12â eye-jaw turnbuckles (1/2TBE&J). Rohn specifies that
>thimble should be one size larger than the guy diameter. The parts have
>arrived, and Iâm perplexed to find that the 3/8â thimbles donât fit
>the eye part of the turnbuckles. I might be able to make them fit by
>flattening the edges of the thimble a bit (sandwiching it between a piece of
>two pieces of flat steel and hammering the flare out of the edges), but
>before I try that, Iâd like opinions on this. I canât be the first person
>who has run into this. It looks like a shackle would work, but Rohn doesnât
>specify them for 55G towers. Comments?
>73, Dick WC1M
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