The part where you talk about how to stand a load up properly with one crane was interesting, on my last job there were these support frames with 4 legs assembled on the ground horizontally, and I had to pick it up vertically to install, as a 4 point lift with initially the bottom 2 chains being under tension. I was an inexperienced slinger and wasn't sure how to bank the crane to transfer the tension properly without shock-loading because I was trying to keep the hook above the center of the load. One supervisor explained to me that I should keep the hook above the end that was attached until the bottom almost starts dragging, then with slow movements transfer the tension to the other 2 legs that were initially loose, then you can slowly land the load vertically then pick it up again with tension in all legs :)
Thanks for that, mate. Yeah it's daunting when your a bit inexperienced. But even the experienced struggle sometimes. I was on a job once where the slinger would say to me 'I'm leaving this to you Jim' when we were standing up 10t precast concrete columns. Even one of the experienced crane supervisors did the same when I was standing 14m long screens up. Said it was out of his depth. So, I wouldn't worry about it too much. But yeah, your man was right. It's best to keep tension on the chains and keep the hook over the end being lifted. I'll probably be posting videos on end lifts in the future.
I hope you enjoyed this. You can also read up on the subject here. constructioncogs.com/what-is-a-tandem-lift/
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First appearance on RUclips for me, I feel famous now lol 🎉😂
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The part where you talk about how to stand a load up properly with one crane was interesting, on my last job there were these support frames with 4 legs assembled on the ground horizontally, and I had to pick it up vertically to install, as a 4 point lift with initially the bottom 2 chains being under tension. I was an inexperienced slinger and wasn't sure how to bank the crane to transfer the tension properly without shock-loading because I was trying to keep the hook above the center of the load. One supervisor explained to me that I should keep the hook above the end that was attached until the bottom almost starts dragging, then with slow movements transfer the tension to the other 2 legs that were initially loose, then you can slowly land the load vertically then pick it up again with tension in all legs :)
Thanks for that, mate. Yeah it's daunting when your a bit inexperienced. But even the experienced struggle sometimes. I was on a job once where the slinger would say to me 'I'm leaving this to you Jim' when we were standing up 10t precast concrete columns. Even one of the experienced crane supervisors did the same when I was standing 14m long screens up. Said it was out of his depth. So, I wouldn't worry about it too much.
But yeah, your man was right. It's best to keep tension on the chains and keep the hook over the end being lifted. I'll probably be posting videos on end lifts in the future.