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[TowerTalk] Slow motion tower

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Subject: [TowerTalk] Slow motion tower
From: (Don Moman)
Date: Fri, 3 Dec 1999 14:49:56 -0700 (MST)
If heating is a problem or an undesired expense, just cut the gear oil
with kerosene. I normally drain all the gear oil out (some will stay of
course) and fill  with kersone. At the low speed and low duty
requirements of antenna rotors, this is quite adequate. 

73 Don

On Fri, 3 Dec 1999, N. S. FIRESTONE wrote:

> Dick;
> We had a situation with a customer with three motor driven overhead dock
> doors large enough for semi trailers to back in. When we first put them
> up everything worked OK for more than a couple of years. As time went by,
> the same problem you have would occur occasionally in colder weather, the
> motors would not come up off of the starter winding/capacitor switch and
> would also blow the fuse. The gear box/reducer oil must get real stiff at
> low temps and the 1/2 HP motor just couldn't get up to speed. We wrapped
> them in thermostatically controlled heat tape and some insulating
> blankets, never had problems with them since then. You have the luxury of
> being able to work on the drive at ground level, I think it's "solvable".
> Nate, W3SVJ in Pittsburgh, where it's not that cold, yet!

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