Jim -
Any chance the rotor or the mast mount have gotten off center? If it were an
aluminum
mast, maybe galling? Just a dot in the shark....
73, Mike NF4L
On 11/12/2011 3:40 PM, Jim Brown wrote:
> Crew,
>
> My Rohn 25 tower holds a 3-el SteppIR up about 125 ft in redwoods, about
> 50 ft below the tops of the surrounding trees. For at least 6 months,
> the mast has been binding when it's been raining much. I've carefully
> studied things from the ground below, and there's nothing hitting the
> antenna, so I believe it must be binding in the pointy-top. K6XX and I
> have banged ideas around, and all we can come up with s debris from the
> trees above collecting in the space between the mast and the sleeve, and
> expanding as it gets wet.
>
> As a solution, we're thinking about hitting that gap from above with a
> couple of cans of WD40, and perhaps adding some sort of rubber gasket on
> the mast just above that point to prevent additional debris collecting
> there.
>
> Does this make sense? Any experience from others on symptoms like
> this? Any other suggested solutions?
>
> 73, Jim K9YC
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|