Coordination is the top priority on a job site when running a crane. It is also a critical part of getting the job done efficiently, on time, and safely. The communication between the signal person and the crane operator is very important. OSHA has made crane hand and arm signals a standard; certifications are required to be a crane operator or signal person.
Crane Hand Signals OSHA Requirements.
Hand signals are designed to be used when job sites are loud and verbal communication is impaired by things on the work site, such as machinery, trucks, jackhammers, etc.
The crane signal person is the eyes and ears of the crane operator. Their job is to instruct the crane operator in safely lifting, moving, and placing the load in the precise location.
The signal person should know all the signals by memory without visual aids. They should also be aware of the types of cranes used on the job site. Some cranes have different load-moving methods and may require different hand signals.
