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Re: [TowerTalk] Rain Water Getting Into TX-472 Motors

To: "Fred Hurd" <>
Subject: Re: [TowerTalk] Rain Water Getting Into TX-472 Motors
From: "K0DAN" <>
Date: Mon, 12 Dec 2011 19:02:07 -0600
List-post: <">>
I don't have that brand tower but the solution is rather generic.

A cover for the motor can never hurt, but when you search for a replacement 
motor, look for something that is rated for "wash-down service". This is 
still not a "submersible" motor (!) but is rated for wet environments (think 
farm machinery, food processing, etc., electric motors which are out in the 
elements or or spray washed frequently).

Even a wash-down motor can have its problems....those little compartments 
which contain the control relays, starter caps, etc., can leak, and should 
be inspected periodically, gaskets replaced, also protected with a bead of 
silicone caulk.

If your motor is exposed to a lot of blowing rain, ice melt, etc., take 
steps to identify the source and protect the motor. Run the motor 
frequently...lack of use is a definite no-no.

Change the oil in the gearbox once a year and inspect/lube pulleys, 
bearings, etc..

A small amount of annual preventative maintenance will go a long way to 
extending the life of your motor, but eventually they will all need 

Remember, the tower manufacturers don't build their own motors....they buy 
them from electric motor suppliers, so if you look hard enough you will find 
a suitable replacement and will not have to spend the big (marked up) bucks 
by buying a replacement from the tower mfgr.

Hope this helps.


-----Original Message----- 
From: Fred Hurd
Sent: December 12, 2011 06:12 PM
Subject: [TowerTalk] Rain Water Getting Into TX-472 Motors

The motor unit installed on my TX-472 US Tower has been soaked internally by
rain water leaking into the motor housing resulting in motor rusting and
corrosion internally. Now the motor is drawing too much current to start up
and blowing the electrical source fuse. Contact with the motor manufacturer
reveals that these motors were not designed to be exposed constantly to
weather but used primarily with generators within weather protected housing.
I am curious if other TX Tower owners have experienced similar problems with
the motors being damaged by rain water. Has anyone found a replacement motor
that can survive heavy rain? Or is the only solution using a cover over the


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