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@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@contesting.com] On Behalf Of
> Robert Harmon
> Sent: Wednesday, March 20, 2019 7:40 PM
> To: towertalk@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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