Jim,
My failure on pressed sleeves was on a hand crimping tool and double barrel
alunimum frerrels.
I have used cable slings @ Bethlehem Steel ( when I worked there ) on Nile
50T with 75K loads with Swedged PRESS installed fittings No problem
MY failure was NOT on any factory but the kit and parts sold at Tractor supply
In the past I have re-strung crankups towers both single and postitive
pullup/down cable design and used a local wirerope distruubitor to duplacate
the cable length, .thimble and swedging configuration
Wayne ,
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Jim Thomson<mailto:jim.thom@telus.net>
Sent: Saturday, February 27, 2021 1:45 PM
To: kj6y--- via TowerTalk<mailto:towertalk@contesting.com>
Subject: [TowerTalk] Cable Work
Date: Fri, 26 Feb 2021 12:27:00 -0500 (EST)
From: Wilson Lamb <infomet@embarqmail.com>
To: undefined <towertalk@contesting.com>
Subject: [TowerTalk] Cable Work
<No real qualifications here, but when did that keep me from offering advice!
<In prep for some tower work which didn't happen, I bought some 3/16 aircraft
cable and sleeves online.
<Not wanting to pay for the real deal tools, I bought a fence wire swaging tool
at Tractor Supply. I expect all the places, like Agri Supply have them.
<I'm not sure if I actually verified the die diameter or not, but must have
thought it was OK.
<I have since done a dozen or so swages, to make slings for logging and general
lifting with my tractor boom.
<Since they are just a few feet long, I consider the slings expendable and
abuse them accordingly.
<I have no idea what loads I've put them to, but I have lifted/pulled some BIG
logs.
<None of the swages has slipped at all.
<I probably wouldn't put up an expensive tower/beam with this stuff, but I sure
would put up a cheap one.
<As usual, YMMV and I'm not making any promises, but I've been amazed what the
stuff can do.
<AND these are single sleeves, not the doubles I'd use on a tower.
<WL
## say what ? I guyed a 82 foot tower with 3 yagis on top, back in the
70s, using winch cable, insulators and nicropress crimps, zero issues.
US Tower corp uses nicropress crimps on all their cable assys. My Hdx-689,
weighs 5600 lbs, loaded.
Nicropress crimps also used on both my cum-alongs, zero issues.
40 ton cranes also use crimps, zero issues.
75 ton HD rotators, like the real big tow truck rigs, used to haul a semi
out of the ditch, will also use crimps, typ with .75 inch
and also 1 inch cable.
## as long as they are properly installed, they are not an issue. The cable
will always break 1st.
## Never had a problem with subsequent towers, where 7 strand EHS and
pre-form grips used. Again, they have to be installed correctly,
again the cable will break 1st, never the pre-forms.
Jim VE7RF
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