After two days of removing branches and limbs from a damaged 100-year-old oak on the campus of Anderson University, a large chunk of the tree pulled down a 70-ton crane. No one was injured.
So I am a crane operator who specializes in tree removal. I’m going on year 5 of operating and I have 18 years of tree experience. So here is my expert opinion. First, that trunk should have been dropped towards the crane, there was ample room for it to be properly felled. Safety is the number one rule in tree work, felling trees is the safest way to do tree work. He was past that point, one you know you can make a pick, you boom up and cable down to get the load off the crane. If he would of boomed up to get more stability he could of picked it up, sure he has a 10-12lb wrecking ball for a brief moment but that’s why you cable down as fast as you can once the pic is suspended. I have almost tipped twice and I avoided it with that method
Why didn't they just angle cut it and let it fall. That seems to have worked for a few thousand years. I can't understand why they even used a crane for this?
Well a green log chart should have been used. Yeah some cranes can tell weight from the cab but when you make a pick that high above ground, you don't have a chance to put it back down. It's already too late unless you can set it back on the stalk.
Operator should of known that it wasn't going to go well if the crane could not pick up the cut section of the tree from it's base without the support of the base. As soon as it cleared the base of the tree he should have lowered the block to the ground.
Coppydoublelopp Kliem The problem is that when you cut a section of the tree trunk out you have no idea how much the section will actually weigh. I am a crane operator and work for a crane service, our company will not perform tree service for this exact reason. As far as lowering the tree section really quickly... pretty much impossible. You can not lower the load quick enough to prevent tip over. The only way this situation could have been prevented is to have had the crane much closer or to have a much bigger crane to do the work... which I'm sure they'd have just cut bigger sections thus possibly leading to the same result. Once the section is cut you're committed there's no turning back and if it's too heavy you're going down.
Would it be possible to have a load meter on the cable/winch, so that the load can be measured? If it maxes out before the thing is lifted, then it's time to stop. Then again, this also depends on the angle of the crane boom.
Benjamin Esposti yes a load moment indicator will tell you exactly what the load weighs after you have the load suspended , but in this case what good would it have done ? If he realized it weighed too much where could he have set it back down .
@@BenjaminEsposti in a perfect world you lmi will do exactly that. He wasn't plum with it though, so as soon as he started to take weight it slipped off. The section slipping off made it impossible for him toblet weight off of it. Kinda just have to hope for the best at that point.
I spent 60 yrs in the construction business, never did a lift in high winds, are overloaded A crane, never killed a soul.An finished jobs on time. Slow down guys one life is worth more than the entire project.
Shouldn't the crane have been parallel parked to the kerb so the struts could give proper support? In many videos of cranes toppling, the cranes have been parked such that the boom is at the rear, not at the side, when lifting the load.
Actually the way the crane was "parked" was the best position for that crane. Over the rear , truck cranes have most capacity! MAIN problem with tree jobs is that tree service ALWAYS want to take too big of pieces for the crane to handle!!! Operators need to just say NO!!
nt trees wow Amateur? I Cut that tree it was split in half by lightning and they didn’t want any damage done to the property. Bottom line is the crane I asked for 250 tun didn’t show up so they made me do it with a smaller Crain. And that’s what happened
@@dirtbikingfool1 made you do it with a smaller crane? If you knew the crane couldn't handle it you should have said no. As for the operator, he should have stopped as well if he knew he'd be over capacity.
@@dirtbikingfool1 Absolutely amateurs. Never operate outside the limits your load charts provide. This is exactly why. You're lucky your crew didn't kill anyone. If they refused the right crane, you have 3 options: 1-refuse the lift and when pressed explain to them that your crane will tip over if you try to lift that much weight at that radius. 2-move the crane closer and put mats down for your outriggers. When yelled at for damaging the grass, it's the fault of whoever made you do the lift with the smaller crane. 3-Try to pick it outside of the limits shown on your load charts and pray to whatever deity you believe in that you don't kill anyone when it inevitably goes wrong.
These are the most dangerous lifts you can make. Picking an an object at elevation with undetermined weight. Once you pick it you're at the mercy of your estimations. Looks like crane was at full boom and approximately 70-80 ft radius. Capacity for this crane at this configuration is around 10000 pounds (or less) provided they have the full amount of counterweight that this crane can have. Wind blowing away from the crane is not helping with this type of lift either. Assuming this a maple tree, lets say it has a density of 50lbs/ft cubed. Estimating the size of the chunk of wood 12 feet high x 5 feet diameter (conservative). The weight of this chunk of wood is around 12000 pounds! A bigger crane should have been used or someone should have been monitoring the size of chunks of wood that were being cut.
Haha. You are so right. It looks like a 75 ton link-belt. You numbers are spot on. Trees are heavy. Common sense says get closer. Or cut the thing down if the grass is an issue. I've done trees with that same crane. Always heavier than they look.
At :16 seconds it is clear that that angle of the boom is at its Max for a load that’s probably 3 to 4 times over its limit. What have it away you may ask. Well for one the boom angle and the fact that the crane is a block away from the load. Either this tree company is in over their head as well as the crane company or both are stupid.
@@DimebagAndVP Yet you are stupid enough to keep electing a old senile bitch that hasn't accomplished anything in life - you have a lot in common with her
Link belt htc 8670 115 main to many parts of line and too far away. You could have suck the boom in to get inside your chart. But now that tree job just got really expensive.
Arbortech doing work here, not sure who the crane contractor is... Wow. Not the greatest marketing material for Arbortech. They aren't much for safety that's for sure.
+nervouswreck75 I can tell you what happened, that crane is good for maybe 8,000lbs that far away. the swell on that red oak probably weighed over 10,000. did they ever check when it was cleaned up? what I don't understand is why they didn't move the crane closer after removing the limbs. the wind couldn't be a factor, maybe if it had leaves on it, but 10k worth of tree doesn't care about the wind. when he realized he couldn't pick it up, you have 2 options. option 1 is boom up and cable down a little, and swing it towards you. very risky, but doable. option 2 is to set it back on top of the stump and do something else. I also don't use those heavy 3 and 4 part blocks, just a heavy whip line. because in emergencies like this, the hook moves way too slow to react.
Allen Binger that oak knuckle weighed probably over 11,000 lbs. and he is using a 2 part line here. The reason for that is because his single part would be maxed out. Winch is good for 15,000 on the first layer on the drum much less on his 6-8 layer on the drum. I'm sure this crane holds over 500' cable. So what I think he should have done is suck about 15-20 feet of boom in and boom little high and swing it to himself and cable down fast on the 2 part line. Possibility of breaking the winch on single part in this situation is pretty high
diesel85idi man you guys are brutal, you don't boom up and let it swing towards you... you set the damn crane up closer, up the tonnage of crane and as seen in this video, don't use an incompetent operator. If you can't get it with the winch whilst holding your radius and you "take it on the boom" you've made a mockery of the trade and deserve what happens
why in the fuck would you work out of chart with that much stick out at that angle and radius when you could have put matting down on the grass, got up tight, had a much better boom angle, and completely avoided this incident?
That man operating the crane took down a tree in my yard and did an incredible job i dont think his incodent was his fault it was the coustomers fault for making them over extend the cranes arm to avoid running over the grass
Guys he might got the weight weight estimation and though it's fine. His mistake is actually not stopping when the crane struggled to lift it from the tree at the beginning
It was the operators fault period he is responsible for the safe operation of the crane never ever cut something loose hooked to the crane unless your sure of the weight. Tim Edwards cic certified operator, practical examiner, rigger, inspector and accident investigator
@@timedwards4341 Unfortunately, Tim, when picking logs like this one you can never know the full weight for sure until it's suspended and as it shifted on the initial pick he didn't have the option of setting it back down. Which is why in this situation you estimate the weight from a published guide/chart and then assume it's twice as heavy as your estimate and never operate outside of your load charts on that doubled estimate. The operator is absolutely at fault here as he is ultimately responsible for the lift. There should've been more than one person who'd stop the pick, but as an operator I can tell you I've been the only one pushing back on a bad pick on more than one occasion. I have absolutely refused to make a bad pick before and when walking my boss through why, I have never been pressed enough that something wasn't changed to put me within my charts/etc. It's so much fucking cheaper to rent a bigger crane or to pay for some grass to be fixed or to reposition everything than it is to tip a crane over even if you get lucky and no one gets hurt.
They said it was a 70 ton crane. The answer is it was just too big of a chunk of tree at too long of a radius. My little 27.5 ton crane could pick that log if it was right up against it.
@@mfsurfer3039 Could be, I'm not familiar with that specific model. If that's the case that's even another failure on the crane operator. Never work outside your charts. This crane is capable of the lift, just not as configured and at this radius. Take your 100 ton crane and extend the boom all the way out at a 10 degree angle (yes this is higher than that I know) and I'd bet this log would turn it over.
The tree cutter/arborist should be able to give the operator a weight. If he cant then common sense says get closser. Also he should have ditched the big hook block and use the whip line. Save 1,200 lbs and if the shit hits the fan you can come down fast. Basically he got cought underestimating the weight of a big chunk of hardwood tree. And it didn't. Look like he was trying to come down fast at all once it came loose.
Unfortunately, that's not always an option. When he picked it initially and set it back half on the stump he was already in trouble. If he tried to let off it all the way there's a high probability that the log falls and takes the crane with it before he can get unhooked. This wouldn't be an issue if he was lifting it from the ground, as he could just set it back down, but it wasn't well balanced after the initial pick. When you're at that point you have 2 options. 1-get someone on a boom lift with a long pole saw to cut the strap from as far away as possible and let the log fall. 2-get a second crane in and rigged on it to add capacity. If it were my pick, the boom lift and cutting the rigging is the better option as team lifts are sketchy in the best of circumstances, and this is not the best of circumstances.
So I am a crane operator who specializes in tree removal. I’m going on year 5 of operating and I have 18 years of tree experience. So here is my expert opinion.
First, that trunk should have been dropped towards the crane, there was ample room for it to be properly felled. Safety is the number one rule in tree work, felling trees is the safest way to do tree work.
He was past that point, one you know you can make a pick, you boom up and cable down to get the load off the crane. If he would of boomed up to get more stability he could of picked it up, sure he has a 10-12lb wrecking ball for a brief moment but that’s why you cable down as fast as you can once the pic is suspended.
I have almost tipped twice and I avoided it with that method
all because they didnt want to dmage the university pretty little grass
My thoughts exactly.
Education doesn’t make you smart
Why didn't they just angle cut it and let it fall. That seems to have worked for a few thousand years. I can't understand why they even used a crane for this?
+nervouswreck75 Hm. Interesting! Thank you!!
Exactly! Or just tie and long rope to it and pull it off.
Eric Burke It was done like that because they initially didn’t want anything on the grass
Here the crane tip over couse is over load Or crane operator use max boom lenth max radius and over load too
The chart in the cab is there for a reason. Some use it, some don't.
He probably doesn't know the weight.
Or he got a wrong weight estimation
Well a green log chart should have been used. Yeah some cranes can tell weight from the cab but when you make a pick that high above ground, you don't have a chance to put it back down. It's already too late unless you can set it back on the stalk.
As an operator of a 30 ton boom truck, I stay away from tree work. Too many unknowns, the biggie being "Do I have it, or does it have me?"
Wouldn’t have happened if you would have been closer to the pick point🙄
Operator should of known that it wasn't going to go well if the crane could not pick up the cut section of the tree from it's base without the support of the base. As soon as it cleared the base of the tree he should have lowered the block to the ground.
Coppydoublelopp Kliem
The problem is that when you cut a section of the tree trunk out you have no idea how much the section will actually weigh. I am a crane operator and work for a crane service, our company will not perform tree service for this exact reason. As far as lowering the tree section really quickly... pretty much impossible. You can not lower the load quick enough to prevent tip over. The only way this situation could have been prevented is to have had the crane much closer or to have a much bigger crane to do the work... which I'm sure they'd have just cut bigger sections thus possibly leading to the same result. Once the section is cut you're committed there's no turning back and if it's too heavy you're going down.
Would it be possible to have a load meter on the cable/winch, so that the load can be measured? If it maxes out before the thing is lifted, then it's time to stop. Then again, this also depends on the angle of the crane boom.
Benjamin Esposti yes a load moment indicator will tell you exactly what the load weighs after you have the load suspended , but in this case what good would it have done ? If he realized it weighed too much where could he have set it back down .
@@BenjaminEsposti in a perfect world you lmi will do exactly that. He wasn't plum with it though, so as soon as he started to take weight it slipped off. The section slipping off made it impossible for him toblet weight off of it. Kinda just have to hope for the best at that point.
I would have scooted right up next to the tree the lawn can always be fixed cheaper then a new crane
I spent 60 yrs in the construction business, never did a lift in high winds, are overloaded A crane, never killed a soul.An finished jobs on time. Slow down guys one life is worth more than the entire project.
Anderson University huh? Must have been a political science student that set up this crane.
Should have been closer. Drove in on mats if owner was worried about grass. Surprised the weight limit didnt shut down the lift.
You can see the tree piece slipped off, so it very well could have cut off, but at that point its a suspended load.
You can lift with the boom, or just bypass the weight limiter. And that is what happened, because he was trying to boom the weight a little closer.
crane was overextended.
The crane turns into a lever to remove the tree. Genius!
Shouldn't the crane have been parallel parked to the kerb so the struts could give proper support? In many videos of cranes toppling, the cranes have been parked such that the boom is at the rear, not at the side, when lifting the load.
Actually the way the crane was "parked" was the best position for that crane. Over the rear , truck cranes have most capacity! MAIN problem with tree jobs is that tree service ALWAYS want to take too big of pieces for the crane to handle!!! Operators need to just say NO!!
John Ayers the peace was split no choice had to take it that big
YES!
What was wrong with rigging it or just dropping it ameturs 🇬🇧
nt trees wow Amateur? I Cut that tree it was split in half by lightning and they didn’t want any damage done to the property. Bottom line is the crane I asked for 250 tun didn’t show up so they made me do it with a smaller Crain. And that’s what happened
@@dirtbikingfool1 made you do it with a smaller crane? If you knew the crane couldn't handle it you should have said no. As for the operator, he should have stopped as well if he knew he'd be over capacity.
@@dirtbikingfool1 Absolutely amateurs. Never operate outside the limits your load charts provide. This is exactly why. You're lucky your crew didn't kill anyone. If they refused the right crane, you have 3 options: 1-refuse the lift and when pressed explain to them that your crane will tip over if you try to lift that much weight at that radius. 2-move the crane closer and put mats down for your outriggers. When yelled at for damaging the grass, it's the fault of whoever made you do the lift with the smaller crane. 3-Try to pick it outside of the limits shown on your load charts and pray to whatever deity you believe in that you don't kill anyone when it inevitably goes wrong.
These are the most dangerous lifts you can make. Picking an an object at elevation with undetermined weight. Once you pick it you're at the mercy of your estimations. Looks like crane was at full boom and approximately 70-80 ft radius. Capacity for this crane at this configuration is around 10000 pounds (or less) provided they have the full amount of counterweight that this crane can have. Wind blowing away from the crane is not helping with this type of lift either. Assuming this a maple tree, lets say it has a density of 50lbs/ft cubed. Estimating the size of the chunk of wood 12 feet high x 5 feet diameter (conservative). The weight of this chunk of wood is around 12000 pounds! A bigger crane should have been used or someone should have been monitoring the size of chunks of wood that were being cut.
Bull Shit. Why was his center pin that far away from the pick? Because he was a dumb ass.
Haha. You are so right. It looks like a 75 ton link-belt. You numbers are spot on. Trees are heavy. Common sense says get closer. Or cut the thing down if the grass is an issue. I've done trees with that same crane. Always heavier than they look.
Everything Happens For A Reason And That Reason Is Usually PHYSICS.
That can be on almost everything
Wood is heavy folks
At :16 seconds it is clear that that angle of the boom is at its Max for a load that’s probably 3 to 4 times over its limit. What have it away you may ask. Well for one the boom angle and the fact that the crane is a block away from the load. Either this tree company is in over their head as well as the crane company or both are stupid.
Are there no counterweights on the back there? Doesn't look like it
Misjudged the weight of the cut piece. That piece probably weighed 5 tons.
a competent tree removal service wouldn't have needed that crane
at least it flipped over slow. the operator had time to grab hold.
Why not just flop it at that point?
Nice job guys
why boom crane need out to high? i think this is new crane operator
They used way too much boom. The less boom you use the stronger the crane is
Not always...
It's the operator fault
Deck and closer
Had the boom too extended too far out just wedge cut it
it was too far positioniting
kilroy chile
No sher shitlock.
Was already down. It just tipped
That's called not havin enough counterweight. :/
No, just overloaded. You can add all the weight you want on the other side but then you can literally snap that boom in half.
Pelosi was telling them everything will be alright
Yet she’s living in your head rent free
@@DimebagAndVP Yet you are stupid enough to keep electing a old senile bitch that hasn't accomplished anything in life - you have a lot in common with her
Link belt htc 8670 115 main to many parts of line and too far away. You could have suck the boom in to get inside your chart. But now that tree job just got really expensive.
Arbortech doing work here, not sure who the crane contractor is... Wow. Not the greatest marketing material for Arbortech. They aren't much for safety that's for sure.
+nervouswreck75 Not to mention high winds
+nervouswreck75 I can tell you what happened, that crane is good for maybe 8,000lbs that far away. the swell on that red oak probably weighed over 10,000. did they ever check when it was cleaned up? what I don't understand is why they didn't move the crane closer after removing the limbs. the wind couldn't be a factor, maybe if it had leaves on it, but 10k worth of tree doesn't care about the wind. when he realized he couldn't pick it up, you have 2 options. option 1 is boom up and cable down a little, and swing it towards you. very risky, but doable. option 2 is to set it back on top of the stump and do something else. I also don't use those heavy 3 and 4 part blocks, just a heavy whip line. because in emergencies like this, the hook moves way too slow to react.
Allen Binger that oak knuckle weighed probably over 11,000 lbs. and he is using a 2 part line here. The reason for that is because his single part would be maxed out. Winch is good for 15,000 on the first layer on the drum much less on his 6-8 layer on the drum. I'm sure this crane holds over 500' cable. So what I think he should have done is suck about 15-20 feet of boom in and boom little high and swing it to himself and cable down fast on the 2 part line. Possibility of breaking the winch on single part in this situation is pretty high
diesel85idi man you guys are brutal, you don't boom up and let it swing towards you... you set the damn crane up closer, up the tonnage of crane and as seen in this video, don't use an incompetent operator. If you can't get it with the winch whilst holding your radius and you "take it on the boom" you've made a mockery of the trade and deserve what happens
R Magz couldn't get on the grass from what I understand. Simply made a bad call on the weight
A lot of people in the comments that just don't have any clue. Leave the tree work to the professional operators
Lordy!
Not like thaaaaat!!!!
boom back cable down wot
Too heavy to boom up.
damn!!!
Counterweights, anyone???
To much counterweight means structural failure then
Any questions ask me I was there
why in the fuck would you work out of chart with that much stick out at that angle and radius when you could have put matting down on the grass, got up tight, had a much better boom angle, and completely avoided this incident?
Yhea, why??
That man operating the crane took down a tree in my yard and did an incredible job i dont think his incodent was his fault it was the coustomers fault for making them over extend the cranes arm to avoid running over the grass
He was the operator not the customer
Shame on the crane operator for letting the customer run his crane!
Guys he might got the weight weight estimation and though it's fine.
His mistake is actually not stopping when the crane struggled to lift it from the tree at the beginning
It was the operators fault period he is responsible for the safe operation of the crane never ever cut something loose hooked to the crane unless your sure of the weight. Tim Edwards cic certified operator, practical examiner, rigger, inspector and accident investigator
@@timedwards4341 Unfortunately, Tim, when picking logs like this one you can never know the full weight for sure until it's suspended and as it shifted on the initial pick he didn't have the option of setting it back down. Which is why in this situation you estimate the weight from a published guide/chart and then assume it's twice as heavy as your estimate and never operate outside of your load charts on that doubled estimate. The operator is absolutely at fault here as he is ultimately responsible for the lift. There should've been more than one person who'd stop the pick, but as an operator I can tell you I've been the only one pushing back on a bad pick on more than one occasion. I have absolutely refused to make a bad pick before and when walking my boss through why, I have never been pressed enough that something wasn't changed to put me within my charts/etc. It's so much fucking cheaper to rent a bigger crane or to pay for some grass to be fixed or to reposition everything than it is to tip a crane over even if you get lucky and no one gets hurt.
Lol we use a 100 ton crane at my company. It would have tossed this tree whole.
They said it was a 70 ton crane. The answer is it was just too big of a chunk of tree at too long of a radius. My little 27.5 ton crane could pick that log if it was right up against it.
PlatypusVomit that may be a 70 but the counter weights aren’t all on there.
@@mfsurfer3039 Could be, I'm not familiar with that specific model. If that's the case that's even another failure on the crane operator. Never work outside your charts. This crane is capable of the lift, just not as configured and at this radius. Take your 100 ton crane and extend the boom all the way out at a 10 degree angle (yes this is higher than that I know) and I'd bet this log would turn it over.
The tree cutter/arborist should be able to give the operator a weight. If he cant then common sense says get closser. Also he should have ditched the big hook block and use the whip line. Save 1,200 lbs and if the shit hits the fan you can come down fast. Basically he got cought underestimating the weight of a big chunk of hardwood tree. And it didn't. Look like he was trying to come down fast at all once it came loose.
Lol who uses a crane to cut a tree down
Almost everyone these days haha sheltered
Driver fold
Órale
😂😂😂😂 hand full of restarts. They call themselves professionals!! Law service company could of done way better job
When you realize its too much, just stop.. undo, and move closer.
Unfortunately, that's not always an option. When he picked it initially and set it back half on the stump he was already in trouble. If he tried to let off it all the way there's a high probability that the log falls and takes the crane with it before he can get unhooked. This wouldn't be an issue if he was lifting it from the ground, as he could just set it back down, but it wasn't well balanced after the initial pick. When you're at that point you have 2 options. 1-get someone on a boom lift with a long pole saw to cut the strap from as far away as possible and let the log fall. 2-get a second crane in and rigged on it to add capacity. If it were my pick, the boom lift and cutting the rigging is the better option as team lifts are sketchy in the best of circumstances, and this is not the best of circumstances.
-_- 얼탱이가 없네 ㅋ
나무한그루도 아니고 토막난거 들다가 자빠지네
super trottln gegngwicht auffe es jollys 😅😅😅😅