Crane falls Arcisate Stabio

@0:34 you can clearly see he has what is called “broken track”. If you look at the right hand track frame look closely at the bottom left rear. The gap between the frame and the treads is slightly wider than in the front. That means he is getting “light” and on a critical pick like this, usually 75% or more of capacity of chart, everything should of stopped right there. Once he started to move a heavy load like this will NOT move perfectly with the boom tip and just a few inches outside of radius and already light and you see the result. Ran crawlers like this for years and said no to a pick more than once. They always listened because they knew if they got someone else and this happened after a certified operator said no it was gray bar hotel for them.

That’s an expensive mistake

It is amazing how many crane experts there are on the internet.

Supervisor - "And THAT, Johnson, is why we wear hard hats".

This video is italian: "Watch out watch out" "GO GO GO!" "Oh holy Mary what a disaster, nooooo, nooooooooooo" "I said it, i said it" "Oh my God oh my God Oh my God" Really desperate...i feel so sorry for them :( Ps: 1:22 see the guys come out from the dust...a miracle

Love how the supervisor just takes off his hard hat and walks away.....no concern for anyone who might be injured.

Driver; So I'm back again tomorrow or nah?

After the signalperson walked away from the right side of the crane while the crane was moving, the treads began to lift at 0:55.  Stability was lost when the treads came off the double stacked sheets of steel at the front of the crane (rear from your view point) and the uneven distribution of the weight (not all treads are in contact with ground nor sheet steel) led to increased ground compaction that led to a tipping condition.  Since this is a critical lift, there were inadequate ground preparation for the lift and not enough signalpersons/riggers to watch the condition of the crane during the lift.

The ONLY thing that matters is that no workers are injured, everything else will be covered by insurance!

When the crane reverses back, it reverses off the front pad, You can see the space. Its at that exact moment that the crane starts to tip forwards.

It’s “Break time guys!!!!”

the crane collapsed because there was an aquifer not reported or detected underground, this caused the sinking of the left track (min. 1.01) with consequent imbalance of the crane.

Is that the general contractor crying??

What we call a 'tray lift' tray being the floating counterweight behind the main counterweight of the crane. What's tricky about these types of lifts is your working radius is very limited because you have to be at certain radius in order to float the tray (meaning as you pick the load the tray of counterweight leaves the ground in order to counter the load, if it's on the ground then it's not counter to the load and you couldn't move the crane either). The crane is very limited as to how far it can boom down (move the load further away from the crane, increase radius) or boom up (move the load closer to the crane, decrease radius). If you boom up to much then the tray will no longer float, essentially it's a very sophisticated balancing act between the counterweight and the load. Extremely poor shoring/matting underneath the crane as well here, probably not level either and on a tray lift you rely very much on pick and carry, good level matting is essential because you need the tracks to move the load, not the boom. Couldn't really tell from this video close up if the boom was moving at all, from what I can tell it looks like this was a near or over capacity lift from the start. If the ground was sloping to the front and the operator, as you can see, started backing up that momentum of going slightly uphill may have been all that was needed to tip the crane over. The operator must be part feline as you can see he escaped from the cab.

On one hand: that's awesome On the other: that looked expensive

So that means we're not going home at 5??? 😁

I want to know who approved the crane to move fully loaded on an uneven surface. Absolute insanity.

How did that operator not die! Holy smokes. Narrowly escaped at 1:20

Очень и очень огромная беда. Дай бог, чтобы все остались живы. Печально, что все рухнуло.

Danny davis, on cranes that big, there are drive motors on both the front and rear of the track frame. He walked out from under the load. The spotters should have stopped him when the counter weights began to rise from initial elevation