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Thread: Cranes collapse while rescuing tractor trailer - GIF

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    Jon
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    Supporting Member Frank S's Avatar
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    somebody should have been doing a better job of directing the cranes to boom up of boom in.
    The second crane was beginning to be pulled over at the end of the vid.

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    Last edited by Frank S; Feb 27, 2019 at 08:05 PM.
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    Do cranes have a quick release for such occasions?

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    Supporting Member Frank S's Avatar
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    Quote Originally Posted by Tooler2 View Post
    Do cranes have a quick release for such occasions?
    There is generally not a quick release to drop the load from the hook the exceptions are for specific purposes such as dropping a penetrator for bore hole work or dropping something for impact testing then an electronic controlled release trigger mechanism or an explosive bolt will be used between the hook and the object to be dropped.
    Like I said previously either booming up while cabling out or booming in while cabling in would have adverted the violent swing of the trailer causing the crane to fail.
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    Jon
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    0:26 video:


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    Quote Originally Posted by Jon View Post
    0:26 video:

    I've had the pleasure of working with a lot of crane operators and I mean a lot of them. Some were better than others but none ever dropped the load. There was this one time in particular where we had to lift a pair of 3 meter wide 15 meter long platforms then lower them between 2 buildings for the first pick once the rigging was in place the operator raised the platform about half a meter off the trailer then once clear he lowered it to about half a meter or less off the ground then slowly boomed out and down keeping the platform close to the ground until he was satisfied his crane could take the weight extended far enough to reach the area where we needed to place the platform. One of my workers asked me why he was going the wrong way with the platform. I said so make sure his crane is capable of lifting the platform over the buildings and not damage anything. especially his crane.
    the time to learn the crane's limitations is not when you are already in trouble.



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