Those pics of the crane job with MB to me look o.k, although my experience in such areas is limited, all i can go on is what knowledge I have gained from those more experienced than me.
It seems to me there are 2 schools of climbers (and more) those who do everything by best practice and try to keep everything effcient and smooth.
And those who go more for speed and effciency through simply'fying there techniques, which can be sometimes not to best practice but experience has taught them is just as safe.
I have been fortunate to work for one of the most progressive arb firms in the U.k they are one of the un-sung heroes of the arb world over here, the boss used to be on the Arb Association Board and was of the very first N.P.T.C trainers. These days though they concentrate on quality tree care.
When I first started working for them i was always doing, small hand held sections, split level cuts and directional felling cuts on dismantle's.
I was soon taught that its not neccersarily the best way and that one cut is more effcient on me and more productive.
One of the reasoning behind this is wear and tear on the climber, over a climbers career he wil do thousands upon thousnads of cuts, the fewer cuts he can make will result in less wear and tear on his joints ligaments/tendons and back. And be more productive than multiply cuts.
Its all situation dependant though, and depends on the tree your working on etc, thats where experience comes in.
I'm now a firm believe'r in one cut from the top straight through, or like the guy pictured one cut and have the crane pull it off, providing it does'nt load the crane in ways it should'nt, o.k there maybe some unpredictability in the ways the wood fibers will responed, and a little less control, but its down to the climber to make that call.
His positioning looked good being that he was covered on the other side of the tree, ok a second tie in point would of been good, but thats his call to make, i'm a firm believer that none of us want to die and we should make are own risk assements and judgements.
I have seen where guys know best practice and use it with out thinking, sometimes a second tie in point is a bad idea, ""make climbing idiot proof and you will only get idiots climbing""
Its very easy to criticise other people's technique.
As for teaching bad habits! Well if a newbie sees those pics and goes out and copies him, then he is a fool who lacks common sense and should'nt be in tree work. Each to his own, and know your own limitations!! |