[TowerTalk] Drill motor

[Mike Reublin NF4L]

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 at 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 at 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 at 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 at 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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