Just some work pics

[terex herder]

Hindsight says its pretty easy to see the second crane has his outriggers over the storm drain.

 

[crane operator]

https://www.salvagesale.com/for-sal...211351?h=5000,q|crane&rr=1&hitprm=&pnLink=yes


"The unit sustained collision damage on 06/18/2020. It has been reported that the unit was hired by the City of Norfolk to remove an 85' tall confederate soldier monument and to take it to a city facility where it is being stored. While they were removing the statue, the marble base broke and causing damage to crane. Unit will run, but there is no boom in the crane. See the photo report. This unit is being sold as part of an insurance claim."

Damaged a 90 ton link belt during the statue removal this summer in Norfolk Va.

https://wset.com/news/local/remainder-of-confederate-monument-in-norfolk-to-come-down

I wasn't able to find video of the crane being damaged.

 

[DMiller]

Karma
Hope the City is Self insured and paying for this.

 

[hosspuller]

So this statue was taken down because some dumbass tried to climb it ? I would put grease on it and sell tickets. I fear for the future.

 

[crane operator]

I think the statue was more taken down because it was known as the "johnny reb" statue.

I think the irony of the united states and the world morally denouncing the taliban for destroying a budda statue, while tearing down our own history in a fit of vandalism is a great tragedy. Today marked the destruction in portland of lincoln and teddy roosevelt statues.

When they decide the churches, cathedrals, and synagogues are a moral affront to them, they will have to come down next. We discussed at the dinner table tonight, that Stone mountain and mt. rushmore are just as "offensive", and I think the calls for their destruction are coming.

 

[mitch504]

There was already a big push for Stone Mountain to be destroyed about a month ago.

 

[digger242j]

It must be noted that crane operator has "reported" his own post as possibly being too political to be in line with the Forum Rules. That being said, as long as everyone else keeps those rules in mind, there should be no problems moving forward.

Thank you, crane operator.

 

[crane operator]

 

[Truck Shop]

What is with all these crane incidents, is there a shortage of reliable crane operators and rigging people?

 

[digger242j]

The nerd in me just had to know, so I Googled it--It was approximately 3 seconds from the time the excavator began to fall, and the noise of impact. That figures out to a hole 145 feet deep, and a speed at impact of 65mph.

Probably left a mark...

 

[Nige]

Probably left a mark...

Certainly one that wouldn't polish out with T-Cut.............

 

[DMiller]

The nerd in me just had to know, so I Googled it--It was approximately 3 seconds from the time the excavator began to fall, and the noise of impact. That figures out to a hole 145 feet deep, and a speed at impact of 65mph.

Probably left a mark...

Am suspected air displacement slowed it some blowing down the hole
However
Digging it from its newly impaled crater home will not be a easy task!

 

[crane operator]

What is with all these crane incidents, is there a shortage of reliable crane operators and rigging people?

I don't think so. I think the proportion of mistakes hasn't changed, its just that when someone like this screws up, its on you tube.

Having the stick out away from the machine changes the center of gravity a lot. if they would have been using steel chokers or chains where they had the nylon's through the tracks, it would have simply spun.

In using nylon's through the tracks, they guaranteed it would cut those as soon as it moved. They have chains everywhere else on their rigging, except for the place they really needed them. A couple lines to the boom heel or on the stick instead of the tracks would have saved it also. No bucket and the stick up higher would have accomplished the same thing, but it looks like they have headroom issues.

Nothing like dropping a 50,000lbs stone down a hole.....

 

[The Peej]

How did they get so far into the lift before it failed. Was is ok until they tried to swing it out of the hole?

 

[crane operator]

The excavator is balanced on the front set of straps. So they are swinging it over the hole, when they stop swinging, it dips toward the bucket just a little. That was enough to get it started, and then it isn't coming back. Steel through the tracks would have saved it from being in the hole, but it still would have spun.

The accident is a chain of events. If at any time, the operator, the rigger or the engineer, had just said, "hey, this doesn't look right, its tippy on this front set of straps and its going to fall out" , none of this would have happened.

People are too afraid to say something. And to willing to take the easy way out.

 

[DMiller]

Have seen machine moves where the lift rises fine straight Up or Down, the Bump when the lifting machine goes to reposition the load to another location is what starts the disaster or the tilt. Even a good operator will not see it occur until too late, know this from Millwrights I worked around as they become the operator's extra eyes on load shifting.

 

[Tugger2]

And this is how close they were to doing it right.
From what i see in the video the machine was tipping before the sling failed. You cant see how the spreader was rigged to the crane i wonder if they had 2 hoists on it and one lowered more rapidly changing the centre of gravity. You see excavators all the time with 2 or 3 feet of track sticking over an edge ,reaching out with out tipping. The front sling looks between 2 and 3 ft from the centre of the idler. Or was it a sudden stop travelling side ways with the crane that caused that roll over ? I lift mini excavators all the time 2 hooks on the blade and 2 on the lugs at the final drives .Im curious on this one.

 

[DMiller]

Considerable variance to the one that dropped, stick pulled back, implement on stick closer to lift point CG is considerably closer to center. Excavator was on a spreader bar suspension not two hooks CG was considerably closer to front slings as noted by CO, Stick tucked as this one would have shifted a lot of weight back to the rear slings.

 

[Tugger2]

Could the 4 point spreader lifting the Doosan also be a contributing factor. Im thinking like a square without any diagonal support collapsing. The single spreader on the Cat looks better but you can see the front sling is loaded more.

 

[John C.]

I'm wondering why there aren't welded lifting eyes installed on machines that are commonly craned into other levels. It is common around here.