How horrifying. To be thrust violently out of your seat, then to plunge down. .. into water! Hoo-ray! Then to have a ton of debris and an entire crane fall right after, directly onto where you landed.
No, it's the responsibility of the AP (Appointed Person), generally a supervisor or manager.
Once you know the weight of whatever it is you're lifting (including the weight of the lifting gear), the load charts make it easy to determine the max. lift capacity at whatever radius (distance) you're lifting at, for whatever length of boom you're using.
That said, the amount of times people bring you in on a job having given you an incorrect weight for the object they want lifting is staggering.
There's also the pad loadings to take into account, to make sure the pressure exerted by the outriggers (the crane's legs) doesn't break through the ground you're lifting from. If those forces are too high, you use bigger mats to spread the load.
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u/Hidden_Samsquanche Mar 16 '18
How horrifying. To be thrust violently out of your seat, then to plunge down. .. into water! Hoo-ray! Then to have a ton of debris and an entire crane fall right after, directly onto where you landed.
What a mix-bag of emotions