If all the outriggers on a crane are not visible during setup, what should be done?

• A. Move closer
• B. Use a Signal Person
• C. Stop operation
• D. Check the load chart

Answer: (B)

When setting up a mobile crane, you must know that outriggers provide the foundation for stability and the load the crane can safely lift. If you can’t see all the outriggers, you can’t be sure the crane is properly supported or that the ground conditions are adequate. Bringing in a signal person ensures there is a dedicated, qualified observer who can communicate clear, standard signals to the operator. This person can guide the setup, confirm each outrigger is fully deployed, positioned correctly, and resting on solid ground, and spot any hazards in the work area. This coordinated approach maintains safety while you verify the setup, rather than risking instability by proceeding without full visibility. Moving closer might help, but it doesn’t guarantee safe outrigger deployment or clear communication. Stopping to check the load chart alone doesn’t address the immediate risk of unknown outrigger conditions.