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Author Topic: Rope Anchor to Vehichle for Tree Pulling  (Read 2317 times)

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Offline ECSScott

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Rope Anchor to Vehichle for Tree Pulling
« on: September 14, 2018, 11:38:13 AM »
I have always used a regular clevis in a hitch to tie off tree rope for pulling.  The radius is really small on a clevis so i was trying to come up with different solution that would have larger diameter of at least 4".  Was not sure if i hook a pulley to the hitch and then tie rope around that or not.  Does anyone have any suggestions for hooking rope to vehicle?

Offline John Mc

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #1 on: September 14, 2018, 05:41:26 PM »
The knot itself is probably weakening the rope more than the clevis hook. Even if you went to something with a 4" diameter, you still have the bends in the knot.
If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow

Offline DelawhereJoe

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #2 on: September 14, 2018, 07:17:27 PM »
HolmenTree would be a great person to ask as he runs a one man tree service and has posted several pics of him using his truck to  pull trees that are leaning or fallen against houses.
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Offline mike_belben

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #3 on: September 14, 2018, 09:46:15 PM »
Baileys sells little plastic eyelets .. I think they might be called thimbles??  Anyway theyre not too large but they double the radius of the initial bend which puts more of the fibers in tension, adding some strength. If half the rope is in compression then youre working with less diameter. 

A hitch ball will add some radius, just be sure to go around the hitch tube also so that your loop cant pop off. 
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Offline lxskllr

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #4 on: September 17, 2018, 06:13:15 PM »
Maybe a piece of pipe welded to a receiver tongue.

Offline ECSScott

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #5 on: September 17, 2018, 09:37:40 PM »
Has anyone used something like the Bend Right Rigging Ring?

lxskllr I thought about taking a pipe and chaining it through the ends to the hitch.  Then wrap rope around pipe and tie.

Offline HolmenTree

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #6 on: September 19, 2018, 11:33:52 AM »
Scott,
Only one way to tie a rope to a pickup truck.
I use a Bee-Line eye to eye prusik, doubled like in my pics 16K breaking strength or approx.11K tensile doubled.
I put it on a strong stainless steel carbiner.
I never had a problem with this setup and have pulled some big loads with my 6.7 Cummins diesel 4x4 pickup in low range.
Always attach to front hooks and pull backwards .


 

 

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Offline HolmenTree

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #7 on: September 19, 2018, 11:36:54 AM »
Here's the tensile rating in single eye to eye.


 
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Offline ECSScott

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #8 on: September 19, 2018, 12:19:24 PM »
Do you pull it like in your picture without a knot in the pulling rope?

Offline HolmenTree

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #9 on: September 20, 2018, 07:16:07 AM »
Do you pull it like in your picture without a knot in the pulling rope?
Scott, on this 3/4" stable braid rope yes. The prusik will move about a inch then it will cinch.
This method is super easy  to tie  and untie. Plus highly adjustable.
On smaller diameter  rope I go one extra wrap from 2 to 3 to prevent slippage.
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Offline DR_Buck

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #10 on: September 20, 2018, 08:18:44 AM »
A more basic question would be "If you're concerned about the rope breaking because of the clevis radius, do you really think you should be tying it to a vehicle?"   

It's all about physics.  If your vehicle is a multi-thousands of pounds piece of logging equipment then you are probably OK. 
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Offline Skeans1

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #11 on: September 20, 2018, 08:26:40 AM »
Best thing I ever learned dont line a tree with a rope or a light machine its always fun watching a rig get pulled backwards or a skidder. Myself if something really needed lined Id want at least a D7 on that line it might be overkill but if it breaks that cable or drags that 50k+ machine then its probably something I shouldnt be messing with.

Offline firefighter ontheside

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #12 on: September 20, 2018, 10:18:09 AM »
As long as the diameter of your clevis is larger than that of your rope, the knot is the weakest part of the whole system.  It will break there before it breaks at the clevis.  Any bend in the rope weakens the rope.  What knot are you using?

Figure 8 has the best efficiency.  In rope rescue we switched from bowline to figure 8 years ago because of that.
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Offline John Mc

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #13 on: September 20, 2018, 10:38:48 AM »
As long as the diameter of your clevis is larger than that of your rope, the knot is the weakest part of the whole system.  It will break there before it breaks at the clevis.  Any bend in the rope weakens the rope.  What knot are you using?

Figure 8 has the best efficiency.  In rope rescue we switched from bowline to figure 8 years ago because of that.
A Butterfly knot generally has better strength than a figure 8 knot, but a figure 8 is stone simple to tie and to inspect.
As you get into smaller diameters, a Double Fisherman's knot will even beat a Butterfly knot - but it has some real disadvantages - one being that once loaded it is extremely difficult to untie.
If the only tool you have is a hammer, you tend to see every problem as a nail.   - Abraham Maslow

Offline HolmenTree

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #14 on: September 21, 2018, 12:48:40 AM »
My experience tying a rope directly  to a pulling vehicle towing ring etc is the Anchor Bend knot or hitch.
Very strong with its 2 non crossing leg coils  and easy to untie.

Rather then just pushing a straight end of the rope under the 2 coils for termination, I make a slip  with long doubled bight with the end of the rope.
Then when I go to untie I pull the excess end of the slip in the bight.
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Offline Al_Smith

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #15 on: September 21, 2018, 10:08:21 PM »
If in the very rare event I have to power pull a tree I don't play around.I have 2 600 foot reels of 1" three strand nylon and 1 300 foot reel .I just use a bowline and a big shackle  and often with a snatch block two part line .I've also got 100 foot hanks of double braid Plymouth 5/8" but I don't use them to pull . 
I might add I learned my rigging education from working as an industrial electrician that spanned 47 years .In that time period I've rigged pulls of armored cable of up to 2000 feet in length with cable that weighed 12 pounds per foot .I have never had a rope,splice of any kind or a shackle ever fail .

Offline HolmenTree

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #16 on: September 23, 2018, 01:29:02 AM »
I only covered the pulling anchor point , but tying to a standing tree a running bowline works every time.

A standing tree pull calls for a big shot slingshot on a 8 foot pole shooting a throwline and weight bag to get the rope up (best invention ever)

Here  I cut and pulled a 65 ft poplar that had a heavy side and back lean behind a shed and over 12K volt wires.
With 2 block pulleys, slings and lots of 3/4" stable braid rope attached to my pickup got er done. :D


 

 

 

 

 

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Offline HolmenTree

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #17 on: September 23, 2018, 01:37:29 AM »
I had 2 ropes rigged into that tree. One to pull on 2 anchored block pulleys with the truck. Plus another anchored with a 6 ton come along acting as a 90 degree to lay side rope to guide the tree down along side the shed and garage.
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Offline teakwood

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #18 on: September 23, 2018, 09:14:20 AM »
And how did you do the cutting and pulling by yourself?  I know you work alone and that would be impossible.

Man, that was a difficult tree, congrats on the success! You aimed it perfectly, a little to the right and that shack would have been damaged. How do you do the cut on that height, with a ladder? 
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Offline HolmenTree

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Re: Rope Anchor to Vehichle for Tree Pulling
« Reply #19 on: September 23, 2018, 11:36:46 AM »
And how did you do the cutting and pulling by yourself?  I know you work alone and that would be impossible.

Man, that was a difficult tree, congrats on the success! You aimed it perfectly, a little to the right and that shack would have been damaged. How do you do the cut on that height, with a ladder?
Yup been working alone for 10 years now. 
No ladder.... after I got the 2 ropes all tensioned like a fiddle string I felled it making the cuts 6 feet high above my head.
Couldn't do it without these tools here. :)

 
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