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[TowerTalk] Mosley PRO 57 B Qusetions

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Subject: [TowerTalk] Mosley PRO 57 B Qusetions
From: joe@xyz.net (Joe - WL7M)
Date: Wed Apr 30 18:41:04 2003
I second everything Greg says.  I've had no problems with the Mosley 
Pro57B-40 or the Hazer, but I have taken all the precautions Greg 
mentioned.  I also use anti-torque arms at the top of the Rohn 25 tower 
along with the Phillystran cables.  The entire package has withstood 
recorded 125 mph gusts with no problems.  Using the braking winch is the 
ONLY way to go.  It's hard to believe that they offer a winch without that 
capability as part of the Hazer package.  The momentum, as Greg discovered, 
can be painful on the way down!

73,
Joe
WL7M

At 02:14 PM 4/30/2003, Greg Gobleman wrote:
>Hi Art,
>
>WL7M has one on a Rohn 25 with a Hazer.
>
>I don't know what the Pro57 B 40 weighs, but the Pro57 B weighs 90lbs I 
>think.  That's a lot of weight for a Hazer.  If you have the heaviest 
>version available, once you add the weight of the mast, coax, antenna and 
>rotor, you will be at the maximum payload.  Be sure you have everything 
>good and tight.  Check it at least once a year for things coming 
>loose.  The rotor plate is of a aluminum alloy.  Be sure to use stainless 
>flat washers for your lock washers to dig into on the bottom of your 
>rotor.  If you do not, they will work loose and dig into that soft metal 
>plate.  You will damage the plate and possibly more depending when you 
>finally see the problem.  Also, that size of antenna will put amazing 
>amounts of twist into the tower in a wind.  That's because it sits 
>off-center on the actual tower.  I added a set of Phillystran guys 
>attached to the Hazer to reduce the twisting action.  Phillystran because 
>it's light and added little to the overall payload.  The basic winch 
>should be replaced.  It freewheels coming down.  I managed to break my 
>wrist last October using it.  Not a lot of fun.
>
>I was using a TB6EM Telrex, CushCraft 40m dipole, and a 2 meter vertical 
>on mine.  The Telrex is gone and is replaced by a C3.  A lot smaller load 
>and more peace of mind.
>
>73
>Greg K9ZM
>_______________________________________________
>
>See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
>any questions and ask for Sherman, W2FLA.
>
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