[TowerTalk] Interesting crank-up failure story

[Leikhim, Joe]

I have just taken my calipers to a piece of the new and old cables on my
TX489MDPL. With them set at 1/4" the cables slide through easily. When
set to 3/16" the cables do not pass. Most of the pulleys are 3 1/2". 

"Dick Green". wrote:
> 
> My 70' tubular U.S. Tower crank-up does not use 1/4" cables for extending and retracting the tower. I think they're 3/16" or thereabouts. However, the tilt-over raising fixture does use 1/4" cable and I would estimate that the pulleys are not much more than 3 1/2" in diameter. Of course, this is a very low-duty cycle, occasional-use cable that is never under load for very long (and can be removed and stored indoors when not in use.)
> 
> 73, Dick, WC1M
> 
> -----Original Message-----
> From: Roger Borowski - K9RB . <wa9eka@worldnet.att.net>
> To: Jleikhim@nettally.com <Jleikhim@nettally.com>
> Cc: towertalk@contesting.com <towertalk@contesting.com>
> Date: Saturday, January 10, 1998 9:21 AM
> Subject: Re: [TowerTalk] Interesting crank-up failure story
> 
> >Hi Joe,
> >I was not aware that US Tower was using 1/4" cable over 3 1/2" dia. pulleys!

-- 
Joe Leikhim KE4TZH
Jleikhim@nettally.com

"tv dinner by the pool, 
i'm so glad i finished school" -F.Zappa 1967

"The Revolution will NOT be televised" -Gil Scott Heron



--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search