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Re: [TowerTalk] Rotatorplate

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Rotatorplate
From: "Mika Liimatainen" <oh6nvc@mbnet.fi>
Date: Sat, 17 Dec 2011 12:41:49 +0200 (EET)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I mean the hole which is the highest pic.

http://www.arraysolutions.com/Products/cmwrotor&bearingplates.htm

Mika oh6nvc




> On 17/12/2011 10:03, K8RI wrote:
>> On 12/17/2011 3:44 AM, Ian White GM3SEK wrote:
>>>
>>> Watch out for PST rotators in a tilt-over tower, because the water
>>> shield over the top seal is only fully effective while the tower is
>>> upright. If the tower is routinely tilted over for storms, it is
>>> advisable to protect the rotator from driving rain.
>>
>> If you lay it over so the output shaft is horizontal any water that gets
>> in should run right back out. I'd be more concerned about driving rain
>> and wind with the thing upright. If water can still be trapped under
>> that cover it could still suffer from the old problems.
>
> Not so Roger, if the unit is on its side water can and will get into the
> top bearing, Like most rotors they are only intended to shed water.
> Water can also get through the mild steel plate / rotor housing
> interface on the bottom. The pot is vulnerable in these circumstances.
>
> If the unit is used on a tiltover tower its worth spacing the rotor off
> the plate by a few mm to allow drainage and using a temporary cover to
> protect everything when horizontal, a plastic fertilizer bag works well.
>
> And yes it was a very good suggestion to improve the paint coating, well
> worth ten minutes of prevention.
>
>
>
> --
> 73 de Paul GW8IZR IO73TI
> http://www.gw8izr.com
>
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