Looking at the picture of the worm gear, I was wondering if there was
any engineering reason
why the pivot point could not be higher up the tower. It would make
getting at the antenna a lot
easier.
Any thoughts on that ??
73, Dick, W1KSZ
On Wed, Dec 7, 2011 at 5:22 PM, Jon Pearl - W4ABC
<jonpearl@tampabay.rr.com> wrote:
> Thanks for the post, Mike.
>
> I stand corrected. I've seen that site before. It's a great means of
> precisely controlling the movement of the tower without a concern about
> a cable snapping but boy, that's a lot of tower hanging off of that worm
> gear.
>
>
> 73,
>
>
> Jon Pearl - W4ABC
> www.w4abc.com
>
>
> On 12/7/2011 5:36 PM, Mike wrote:
>> Interesting scheme for a foldover.
>>
>> http://heightstowers.com/fold_over_kits.htm
>>
>> 73, Mike NF4L
>>
>> On 12/7/2011 12:46 PM, Jon Pearl - W4ABC wrote:
>>> Hi Joe.
>>>
>>> While a few of us have removed and totally replaced our up/dn hand winch
>>> with an electric but I'm not sure I've ever cataloged anyone replacing
>>> their fold over winch. I'm sure that there's one or two out there,
>>> though. Joe, WD0M shows how he folds his tower over with an electric
>>> drill on his page at http://www.wd0m.com/winchadapter.html
>>>
>>> I can attest to the fact that this does in-fact work as I've done it
>>> myself with a 1/2" Milwaukee hammer drill and socket drive adapter on my
>>> TX-455. Folding the tower over is a one hand operation. Getting it
>>> back up in the air takes a bit more ooomph to hold onto the drill.
>>> Switching to a worm-gear drive would probably make this affair a bit
>>> more palatable for the electric drill -
>>> http://www.amazon.com/Dutton-Lainson-WG2000-Worm-Gear-Winch/dp/B002YNLUYG
>>>
>>> I can only imagine that utilizing this method with a TX-472 would be
>>> large undertaking when going from horizontal, back up to vertical.
>>>
>>> In the event that you are interested in something of a more permanent
>>> nature there may be an idea or two for you here:
>>> http://www.w4abc.com/drive.html
>>>
>>>
>>>
>>> 73,
>>>
>>>
>>> Jon Pearl - W4ABC
>>> http://www.w4abc.com/
>>>
>>>
>>> On 12/7/2011 10:06 AM, KC2TN wrote:
>>>> Has anyone replaced the hand crank on their foldover tower with an
>>>> electric version?
>>>>
>>>> I have a new TX472MDP from US Tower and am thinking of replacing the stock
>>>> "Foldover Raising" winch.
>>>>
>>>> Thanks, Joe KC2TN
>>>>
>>>>
>>>> Sent from my iPad
>>>>
>>>> On Dec 7, 2011, at 12:48 AM, Jon Pearl - W4ABC<jonpearl@tampabay.rr.com>
>>>> wrote:
>>>>
>>>>> Hi Mike.
>>>>>
>>>>> The Fulton K1550 will probably work nicely in your 'tilt' application.
>>>>> Some folks have been known to swap out their weather beat and worn K1550
>>>>> with the heftier K2550 for hoisting the larger 'plus' sized towers in
>>>>> the 'up/down' application:
>>>>> http://www.fultonperformance.com/content/products.aspx?lvl=2&parentid=7900&catID=7940&part=0
>>>>>
>>>>> As to a pulley for the top of your post, a good source for off the shelf
>>>>> configurations that might work for you can probably be had from any of
>>>>> the boat hoist manufactures such as the 560X depicted on this page:
>>>>> http://www.lunmarboatlifts.com/index.cfm?currentpage=2&fuseaction=category.display&category_id=15
>>>>>
>>>>>
>>>>>
>>>>> 73,
>>>>>
>>>>>
>>>>> Jon Pearl - W4ABC
>>>>> http://www.w4abc.com/drive.html
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 12/6/2011 10:26 PM, Michael Goins wrote:
>>>>>> Have a HG-52-SS here destined to have a two el quad on it soon. When
>>>>>> fully
>>>>>> nested, it is about 22 feet tall and if I remember correctly, the weight
>>>>>> is
>>>>>> around 450 pounds (plus rotor and quad).
>>>>>>
>>>>>> I want to be able to tip it over by removing the top bolts on two legs
>>>>>> and
>>>>>> both on the remaining one, thus using the remaining two lower front bolts
>>>>>> as a pivot (this is the factory recommended base and it solid at 5 feet
>>>>>> deep.
>>>>>>
>>>>>> I have a solid power pole I plan to use as the winch pole and it will be
>>>>>> located about 6 feet behind the tower. I'm trying to determine the
>>>>>> cut-off
>>>>>> (out of ground) height I need for the tiltover pole (about 6-10 feet is a
>>>>>> guess) and more especially, the rating of a winch/suggested type to
>>>>>> handle
>>>>>> the lowering of the tower. Also looking for a pully to mount on top of
>>>>>> the
>>>>>> pole for the winch to ride over going to the tower.
>>>>>>
>>>>>> At 62, I don't plan to do a lot of climbing any more and I'm trying to
>>>>>> set
>>>>>> this up so that the quad can be maintained fairly easily. If anyone has
>>>>>> done something similar, I sure would like to hear from you off list.
>>>>>> Thanks.
>>>>>>
>>>>>> Mike, k5wmg
>>>>>>
>>>>>>
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