Checklist: joint lift with two cranes
The points that must be clarified before two cranes lift the same load
§Planning and coordination rather than just machine operation
- 01A qualified person is designated to plan and oversee the team lift
- 02All crane operators and riggers involved are instructed in this specific lift
- 03There is a fixed plan for the load's path and for what is done if anything deviates along the way
§Weight distribution and load
- 01The weight distribution between the cranes is calculated, not estimated
- 02None of the cranes are loaded over 75% of its maximum permissible load at the current outreach
- 03Account has been taken of what happens to the distribution if the load tips or rotates slightly
§Cranes and equipment
- 01The cranes are of the same type and preferably have the same speed regulation system
- 02If necessary special lifting gear (yoke) has been used so the weight is distributed correctly
- 03All crane operators have certificates for the crane type they operate
§During the lift.
- 01All crane operators are on the same radio channel as the technical supervisor
- 02The movements are coordinated so that no crane lifts or lowers without the others
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