Mobile 3 Intro To Pre Lift Planning Flashcards
The company directing the crane (client) has many responsibilities.
Name 5
Access roads are adequate
Operating locations are firm and level
Operating locations away from trenches
Blocking is available
Operating locations are away from power lines
Sufficient room for crane erection
The maximum radius,loads and heights are known
Adequate swing clearance
Ropes/barricades in place
Access to site restricted
Competent person involved in rigging
When should lift forms be done
Over 75 % of capacity
What do you need to be aware of on an elevation view drawing
The info displayed
The crane clearance
Head and rigging clearance
What is shown in the rigging view
Everything from the block down to the lifting points
Rigging is thoroughly detailed
What is the perspective view good for
If you have to place a load into something
Shows overall 3D view of lift
Good look at area as a whole
What’s shown in the plan view (birds eye)
Starting to final positions of crane
Distances for obstructions
Radius and tail swing
What does the lift information on a drawing include
All configuration info
Load weight. Capacity, deductions
% of capacity