Rigger and Signaler

The CRS program focuses on the knowledge and skills necessary to maintain safe working environments during basic rigging and signaling operations. The CRS designation indicates competence in the following areas: Inspects hardware, slings, and rigging equipment Selects the proper hardware for hoisting operations (e.g., takes into account the effect of friction on synthetic slings or hardware) Accounts for the effect of the configuration on the sling stress Performs proper hardware installation and attachment techniques Communicates movements to crane operator using the appropriate voice or hand signals Takes into account the effect of voice or hand signals on the load and the crane Recognizes hazards (e.g., extreme angles, pinch points, criteria for critical hoist) Adjusts for the gross weight of the load in hoisting operations Determines the load weight and center of gravity of symmetrical loads accurately Takes into account how shifting centers of gravity affect load stability Identifies proper attachment points based on center of gravity and hitch configuration Determines types of knot to use based on material and application