IOW (and I THINK this is what Roger did) the Philly can be left long
initially (past the Big Grip) and held with a Chicago grip, double cam
lock, or whatever - even a knot, since you will be trimming the extra
Philly away - for the purpose of pretensioning while the grips are
installed.
Steve K8LX
Roger (K8RI) wrote:
> I'm going to answer this on the group as a number asked this question.
> I hope I get this straight. It 's easier to do than to describe
> properly. <:-))
>
> I calculated and cut to length the guys needed plus a couple feet extra
> on each one. I had planned on using an EHS tie to the anchor so if I
> missed the length by a couple of feet I could correct the problem by
> cutting the EHS to fit. EHS lengths vary from about 10 to 14 feet.
> (What ever was needed)
> I installed the Big Grip (TM) on the end that would go on the tower.
> The excess on the other end was wound around an anchor such as a tree,
> or was driven in the yard. Sometimes a thimble will help here even if it
> has to be over size. The end that went in the Big Grip was gripped by a
> double "cam lock" like the kind used for gripping fence wire when
> stretching it (only larger). I think it was only about $3 or $4 at the
> local ACE hardware store. I don't have any photos of the procedure.
>
> I hooked a "comealong" to the cam lock and put the guy under about 400#
> tension. Then installed the Big Grip according to the instructions. The
> most difficult part was finding, or creating two anchor points the
> correct distance apart although I did have a 20' Comealong as well as a
> 20' log chain which gave me 40 feet of leeway. This was the point where
> I discovered all that steel in my welding bench may weight half a ton,
> but 400# or tension easily skids it across the floor. <:-))
>
> When winding a Big Grip became a problem I used a BIG screwdriver as a
> lever to easily get the wrap to conform. (One turn at a time...per
> side). Some times at the very end it was one wire at a time.
>
> Yes, they work very much like the "Chinese Handcuffs". The pretension
> when wrapping gives a better grip. I've never had one come loose, but
> they are not normally reusable. If one has to be redone within about a
> week it can be done once. The instructions give the specifics on that
> and I don't remember. My copy is out in the shop, but they are available
> on line.
> Steve Litwins wrote:
>> Roger;
>> How did u manage to secure the end of the Philly u were working on?
>> The other end? Or is that a moot point if u can wrap two turns and
>> then use the thimble?...73/dx
>> steve, k8wk
>>> W3YY wrote:
>>>> Steve -
>>>>
>>>> You can see step-by-step pictures on my web site www.w3yy.com. The
>>>> pictures
>>>> are contained in the Projects section under Phillystran. The direct
>>>> URL is
>>>> http://www.w3yy.com/phillystran_assembly-1.htm That will be the first
>>>> picture. Click "Next Step" to see the next picture, etc.
>>>>
>>> You missed one very important part as recommended by the company: The
>>> cable should be under tension when the grip is installed. I was able to
>>> use a comealong to pull the guy tight and then wrap the end. Of course
>>> while figuring out how to do this I managed to slide my welding bench
>>> half way out the shop door.
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|