[TowerTalk] Rohn 55 thimbles and turnbuckles

[donovanf at starpower.net]

Dick,

1/2" heavy duty thimbles are required by Preformed Line Products for use with their Big Grips for 1/4" guy wire and Phillystran.  

See:
http://www.preformed.com/artsfest/files/AppProc/SP2049-3.pdf
http://www.preformed.com/artsfest/files/AppProc/SP2806.pdf

Use a 7/16" shackle to make the transition from the thimble to the turnbuckle.

73!
Frank
W3LPL

---- Original message ----
>Date: Wed, 30 Aug 2006 19:47:29 -0400
>From: "Dick Green WC1M" <wc1m at msn.com>  
>Subject: [TowerTalk] Rohn 55 thimbles and turnbuckles  
>To: "Tower" <towertalk at contesting.com>
>
>Reviewing the Rohn parts list for a 110’ 55G tower @90-100MPH, I decided to
>go with ¼” EHS for all three levels (actually, 6700lb Phillystran with ¼”
>EHS leaders. Following the parts list, I ordered 3/8” heavy-duty thimbles
>(3/8THH) and ½”x12” eye-jaw turnbuckles (1/2TBE&J). Rohn specifies that the
>thimble should be one size larger than the guy diameter. The parts have
>arrived, and I’m perplexed to find that the 3/8” thimbles don’t fit inside
>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, I’d like opinions on this. I can’t be the first person
>who has run into this. It looks like a shackle would work, but Rohn doesn’t
>specify them for 55G towers. Comments?
>
> 
>
>73, Dick WC1M
>
> 
>
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