Q: What precautions are needed regarding the crane and its rigging?
A: Read the instructions set forth in the erection details, which are part of the details furnished by the accessory vendor. Make sure the crane operator has a copy of the erection details. Walk around the job with the crane operator. Proper planning can save a great many dollars. Make sure cable lengths are as shown on the erection details because there is a very real chance that the inserts could be overloaded or the panel overstressed.
Watch for overhead electrical lines that could be dangerous for crane booms.