Chris -
I'm asking only about tilting the tower from horizontal to vertical and back.
Extending it is already handled.
To arrive at the 2 ton figure, I used a formula one of the guys on here
supplied. The load is heaviest when the tower is horizontal, and lessens as the
tower goes toward vertical.
load in lbs = weight of tower * length of tower/10 ft * cos(angle of tower with
respect to ground) / sin(angle of cable with respect to tower)
tower wt. =1200 lbs.
length 35'
angle of tower = 0
angle of cable 45
There is approx. 15' of cable between the post and the tower * 4 runs = 60' +
approx 10' from the pulley on the post to the winch. I estimate∂ roughly 11-12'
of that not wound on the winch.
Let me know what the club says.
Mike
On Feb 18, 2014, at 1:07 PM, Chris <EZRhino@fastmovers.biz> wrote:
> Hey Mike,
>
> Two of my buddies use this on a TX-455, and the cable goes over the pulley at
> the top of the biggest tower section, then down around a pulley on the bottom
> of the second tower section (which they added), and then back up to a fixed
> point at the top of the biggest section again, giving a 2:1 ratio. It lifts
> the tower to full height in less than 60 seconds. One of my friends first
> routed the cable directly without the 2:1 advantage but he felt like it was
> too fast. The motor handled it fine. I don't know how my other buddy with
> the HG70 routed his cable, or maybe I forgot. I'll ask at the meeting this
> week. Remember that adding more cable to the winch is kind of irrelevant
> because most of it is being routed up and down through pulleys, not all
> around the drum. I don't know where you get 4k lbs., that's 3x the weight
> of my entire tower (LM470).
>
> Chris
> KF7P
>
>
>
>
> On Feb 17, 2014, at 9:33 PM, Mike Reublin NF4L wrote:
>
>> Thanks Chris -
>>
>> I have seen that winch touted, as well as it's big brother.
>>
>> The lifting force when the tower is horizontal is a tad north of 4000 lbs.
>> Using a 4 sheet block cuts it to about 1000 lbs. That requires about 70 feet
>> of cable. The winch comes with 39 ft. and the only thing Northern will say
>> about it is that adding cable voids the warranty. I'm not all that concerned
>> with the warranty, but I'd need to know the top capacity of the drum. I'd
>> prefer to use 1/4" cable further taxing the drum capacity.
>>
>> How have the locals come to grips with those issues?
>>
>> 73, Mike NF4L
>>
>> On Feb 17, 2014, at 7:28 PM, EZ Rhino <EZRhino@fastmovers.biz> wrote:
>>
>>> The locals in these parts have used this hoist with good success:
>>> http://www.northerntool.com/shop/tools/product_200328855_200328855
>>>
>>> Of course you need a platform of some sort to mount it on.
>>>
>>> Chris
>>> KF7P
>>>
>>>
>>>
>>>
>>>
>>> On Feb 17, 2014, at 14:31 , Larry Loen wrote:
>>>
>>> Me three.
>>>
>>>
>>> Larry WO7R
>>>
>>>
>>> On Mon, Feb 17, 2014 at 2:30 PM, Bob Farkaly <bob@farkaly.com> wrote:
>>>
>>>> No experience, but looking for a solution with my HG70-HD as well.
>>>> Interested in replies.
>>>>
>>>> Bob. K9RHY
>>>>
>>>> -----Original Message-----
>>>> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
>>>> Mike
>>>> Reublin NF4L
>>>> Sent: 17 February, 2014 2:40 PM
>>>> To: towertalk reflector
>>>> Subject: [TowerTalk] Drill motor
>>>>
>>>> Has anyone had experience or have an opinion about turning a Fulton KW
>>>> series winch with a Ridgid R7122 to tilt up/down my HG70HD?
>>>>
>>>> The specs and warranty look real good.
>>>>
>>>> 73, Mike NF4L
>>>> _______________________________________________
>>>>
>>>>
>>>>
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>>
>
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