[TowerTalk] Cable replacement MA-40

[David Thompson]

To all, I found the cable was digging a rut in the section cross bars.  I 
took a large crow bar and bent them about 1/4" out.  I tried in but the 
sections got to close together.  bend them only where the cable comes up the 
tower.  The cross bars caused the lower cable to fray and finally break (17 
years along).

Seems tower makers don't plan on much room between the cables and the center 
of the cross bars.
For some reason there is more room on the top sections for the cable.  Its 
an old Tristao that translates to a US Tower TX 472.

73 Dave K4JRB

----- Original Message ----- 
From: <JWKIMBALL at aol.com>
To: <towertalk at contesting.com>
Sent: Friday, February 26, 2010 5:16 PM
Subject: Re: [TowerTalk] Cable replacement MA-40


> Let me know about the rubbing too.
>
> Tnx
> Jim
> K5AUP
>
>
> In a message dated 2/26/2010 17:08:15 Eastern Standard Time,
> noddy1211 at sbcglobal.net writes:
>
> How did  you cure the rubbing problem Dave, I have the same deal here with
> the  LM-470 on some sections.
>
> Mike
>
> -----Original  Message-----
> From:  towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com]  On Behalf Of David Thompson
>
>
> Great points Steve,
>
> Too many  hams replace cables far too often.  The only other reason is to
> replace a cable is when strands have broken off and can be seen.  I  have
> replaced the cables in my 71 foot crank up 2 times in 41 years.   The
> bottom
> section has been replaced 4 times as the cable actually  broke.  Solving a
> rubbing problem with the sections has cured that  situation.
>
> My maintenance is to spray the cables every two years with  Pre-Lube 6.
> Checking the cables for broken strands at that time completes  the
> maintenance.
>
> 73 Dave K4JRB
>
>
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