[TowerTalk] Cable working load/breaking strength...///

Mike noddy1211 at sbcglobal.net
Tue Nov 17 07:35:35 PST 2009


Bill,

You might check up, but the recommended cable specification has changed on
the LM-470.  When I re-cabled mine the cable recommended by Tashjian was
1/4", now this is the bit I can't remember and don't have time to look up.
The new cable is much more flexible, it is something like 7x32.  These
larger cables are used for the main pull up and positive pull down.

The reason given to me by Carl was that the old 3/16 cable was not flexible
or strong enough to be bend so tightly around the two bottom pulley's, they
had a life of typical of a 100 cycles.  The new cable fits fine  around the
existing pulley's.

Mike, K6BR

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Bill Winkis


My blueprint of my LM70 clearly states that the pull/down cable shall be 
..3/16..7X19 and have a WORKING LOAD of 1400 pounds....most cable sold 
advertise a
BREAKING STRENGTH ...

And I am told the Working Load  is 1/10th of the Breaking Strength...

If this is true ..where in the world can you find a 3/16 cable with a 
breaking strength of 14,000 pounds..???

Or am I missing something....

-Bill

kc4pe at bellsouth.net
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