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Re: [TowerTalk] HAM IV Slippage

To: <>
Subject: Re: [TowerTalk] HAM IV Slippage
From: "Stan Labinsky Jr." <>
Date: Fri, 6 Apr 2012 00:16:59 -0400
List-post: <">>

What would happen if you could mark exactly on the mast where the rotor 
clamp faces contact it.

Then, grind narrow vertical troughs into the mast coinciding with the 
contact points... sorta like a three or four point spline or torx drive bit.

I would expect that it would greatly increase the holding power, and if done 
right could still provide a break away so the rotor didn't become junk in 
the once-in-a-century storm..


----- Original Message ----- 
From: "Ken Eigsti" <>
To: <>
Sent: Thursday, April 05, 2012 3:28 PM
Subject: [TowerTalk] HAM IV Slippage

> RE: Mast slippage
> Here is what has worked for me regarding slippage of the mast in the rotor
> (mainly with HAM IV an T2W) but I am sure it would work with others.
> I learned of this trick from W0BV. (Need to give credit where it is due)
> Go to you local tire shop and get an old inner tube. Cut a piece that will
> fit in the area between the rotor clamp and the mast.  When you tighten 
> the
> clamps it is almost impossible for the mast to turn. It is simple and yet
> does not have the effect of what "pinning" does. I imagine with a strong
> enough wind it would still "release" and turn, but so far it has solved my
> problem. It also seems to act as somewhat of a cushion for vibration and I
> have not had nuts loosen on the U bolts.
> GL Ken W0LSD
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