[TowerTalk] Manually crank down a motorized tower

[Kj6y]

I’m always amazed why people would but a 70-90 ft tower and not consider a motor drive.  When I was installing towers I would always recommend the motor drive on any tower 55 ft or higher.  I know they are an added expense, but when you  consider the ease and connivence, plus being able to lower the tower quickly when the winds pick, I think it’s worth it. 

Skip, KJ6Y
818-522-5421
Communications Service Co
Sent from my IPad

On Mar 20, 2019, at 11:14 PM, Don <w7wll at arrl.net> wrote:

Interesting, curious what the heck you are cranking. I have a 70 foot HG-70D and its about 500 turns up or down with the K2550. Good exercise and I do it 100 at a time, pull weeds from the flower beds for a few minutes or have a frosty 807, then continue and then go on to the next external job my wife has for a short period. I have the motor control that came with the tower and it sits new in the boxes. Not worth the bother to install considering how often I take the tower up or down, which is usually only once a year for some brief maintenance. Takes a few turns to lay it over or raise it too as I use a double pulley system. I also have a Tri-Ex WT-51 and it also has a low crank number as I recall.

1000 up and another 10000 down though might make me rethink the latter.

Don W7WLL

> On 3/20/2019 4:54 PM, Joe K2UF wrote:
>  Bob,
> 
> I have a 72 foot tri-ex tower .  Have never user the motor control for it.
> I have cranked it up and down manually many times.  You are correct it takes
> a lot of cranking.  Once I counted the turns.  It took about 1000 revs to
> lower each section ( also 1000/sect. back up  UGHHH).
> 
> Good luck,
> 
> 73  Joe K2UF
>  
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
> Robert Harmon
> Sent: Wednesday, March 20, 2019 7:40 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] Manually crank down a motorized tower
> 
> 
> I have a US Tower HDX589MDPL with the motorized drum.  I was wondering what
> I would do in the event that something failed in the control box and I
> needed to crank it down.
> The gearbox has a worm gear and I believe I could temporarily take off the
> chain and turn the gear box sprocket by hand.  I would have to turn it until
> the cows come home but I think I could crank it down.  Am I correct about
> this ?  Have any of you had to crank down your motorized tower by hand ?
> 
> Bob
> K6UJ
> 
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