Here is a case to learn from.
This accident happend with our All Terrain crane in Nothern Afghanistan.(PPM 580 ATT)
It happend the 6.jan 2006 just before lunch.
The operator was lifting a number of containers onto a couple of trucks.
Driving to and from the old camp to the new.
They had been doing this since the morning.
They were nearly finnished, the operator moved the crane to a new spot.
He drove the crane from the upper cabin.
Then he locked the suspension on the crane and turned the upper part to the side to see if there where more containers to lift.
Oooops; the crane tipped backwards ending on its back.(se pict 1 and 2)
No body got hurt, only the crane.
He believed from studiing the operators manual that he could move the upper part when the suspension was locked.
The manual says u can carry load in the hook while driving. In creep mode.
That is only possible when the boom faces backwards and is locked in that position. Susp has to be locked too.
So how do u get from transport to this backward position?
Manual dosen't say anything, so he assumed it would be stable when the suspension is locked.
Problem is, u have to rigg the crane with the outriggers down, turn, lock it backwards, and then take the outriggers in and up.
Crane was not so much damaged, drivingcabin, part of the counterweight got loose, some damage to the winch, the LMI and som dents in the boom when we turned it around. And the addon boom got smashed.(dont remember its right name)
Recovery was done with two winches, one in each direction and a wheelloader to help with the start of the prosess.
When lifted with the loader, the winches fixed the rest.
After some minutes on right we checked oil and started it.
Then put the ouriggers out and parked for the night.
Lessons learned:
- All drivers must have machine spesific education, short or long.
- Instructors have to be qualified and checked out before doing a course.
- Course must be documented and a exam passed.
It is not enough that u are an old and experienced driver. U have to have experience on the specific make and modell to be safe.
We saw here that the driver didn't have enough experience on that spesific modell.(situation)
And i coulden't document the education that we had given him.
It was of the type where a experienced driver thought the new one, what he new.(they spent two days in the crane)
And as i said, i can't document what they have tought to each other, cause there is no program or exam available.
From now on, all have to have a course regardless of what they want to operate.(and how experienced they are)
No course, no driving.
This accident happend with our All Terrain crane in Nothern Afghanistan.(PPM 580 ATT)
It happend the 6.jan 2006 just before lunch.
The operator was lifting a number of containers onto a couple of trucks.
Driving to and from the old camp to the new.
They had been doing this since the morning.
They were nearly finnished, the operator moved the crane to a new spot.
He drove the crane from the upper cabin.
Then he locked the suspension on the crane and turned the upper part to the side to see if there where more containers to lift.
Oooops; the crane tipped backwards ending on its back.(se pict 1 and 2)
No body got hurt, only the crane.
He believed from studiing the operators manual that he could move the upper part when the suspension was locked.
The manual says u can carry load in the hook while driving. In creep mode.
That is only possible when the boom faces backwards and is locked in that position. Susp has to be locked too.
So how do u get from transport to this backward position?
Manual dosen't say anything, so he assumed it would be stable when the suspension is locked.
Problem is, u have to rigg the crane with the outriggers down, turn, lock it backwards, and then take the outriggers in and up.
Crane was not so much damaged, drivingcabin, part of the counterweight got loose, some damage to the winch, the LMI and som dents in the boom when we turned it around. And the addon boom got smashed.(dont remember its right name)
Recovery was done with two winches, one in each direction and a wheelloader to help with the start of the prosess.
When lifted with the loader, the winches fixed the rest.
After some minutes on right we checked oil and started it.
Then put the ouriggers out and parked for the night.
Lessons learned:
- All drivers must have machine spesific education, short or long.
- Instructors have to be qualified and checked out before doing a course.
- Course must be documented and a exam passed.
It is not enough that u are an old and experienced driver. U have to have experience on the specific make and modell to be safe.
We saw here that the driver didn't have enough experience on that spesific modell.(situation)
And i coulden't document the education that we had given him.
It was of the type where a experienced driver thought the new one, what he new.(they spent two days in the crane)
And as i said, i can't document what they have tought to each other, cause there is no program or exam available.
From now on, all have to have a course regardless of what they want to operate.(and how experienced they are)
No course, no driving.
