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Horse Chestnut Crane job


Marc
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Good job marc. I've never seen that vertical step cut used on a crane job before, does that help reduce the saw getting stuck? Also I'm interested to the hear why you use chains on the smaller sections? Do you find it harder balance horizontal sections with chains? Where was the 2nd climber, were you both in the tree?

 

This was my first full solo crane job, before this i've maybe done a handfull of picks. although i've done a few stem dismantles using a HIAB Mog. Most of what I do is observational stuff that i've picked up.

 

Its not a vertical step-cut I cut about 2/3rd's or more through horizontally, then come down at angle through to my bottom cut this way if the saws gets trapped the crane driver can gently release the pressure and it should sit on the bottom cut releasing my saw in the upper cut, thats the theory anyway as I understand it.

 

I keep step cuts to a minium as I do not like holding wood in crane work, if I do a step its usually very thin, holding wood puts things underpressure, I like the crane to lift easy with no sudden release of pressure, everything should release smooth and undercontrol, i've seen climbers make huge step cuts then move away and let the crane driver break it off with much bouncing and shock loading to the crane seems a bad idea to me.

 

 

Did my video make using the chains look hard? With the HIAB I use slings and can honestly say chains are so simple and fast especially on balancing. Not sure if you spotted the 3 way balance by using a sling to clip into the chains to prevent the piece from rolling a neat little trick I copied of someone.

 

Marcus the second climber did the last big picks but my battery died so no vid of him.

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As title says, this tree had an included wire brace wrapped around the sub-stems making things awkard, it was one of those jobs where methodical lifts where the order of the day and not balls out big bits.

 

My battery died so did not get any video of Marcus finishing off the last big timber :sad: maybe that or maybe I just did not want to get his Spiderjackery on video.

 

 

nice one marc cool vid

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Chains didn't look tricky to use, its just that they are both the same length, so you need to do a few wraps or half hitch to shorten one side to balance. Your lifts looked very smooth.

 

I just re-read my last post I made it in haste before going out, I hope you didn't think I was being patronising.

Yes it's a matter of taking a few wraps to remove slack to get the tension right, larks footing a sling and getting it to the hook seems to me more effort, it's just a matter of preference really.

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