How should safe wind limits be determined and actions taken if wind increases?

• A. Follow the crane manufacturer's wind limits for the equipment and the load; stop or pause lifting if wind exceeds limits.
• B. Wind limits are not important; continue lifting if you feel comfortable.
• C. Only check wind at the start of the shift.
• D. Wind limits apply only to tall towers, not mobile cranes.

Answer: (A)

Understanding wind limits is about using the crane maker’s published maximum wind speeds for both the crane and the load, and acting when conditions approach or exceed those limits. These limits are built from how the crane is designed to handle wind, including stability, load weight, load center of gravity, and the crane’s configuration (such as jib angle). Wind affects tipping risk, control, and the ability to stop a swing or hoist safely, so the stated limits are the guardrails that keep operation within safe margins.

When wind increases, the safest course is to stop or pause lifting and lower the load to a secure position if you’re already lifting. If the wind continues or gusts increase, you should not resume lifting until the wind speed has dropped below the manufacturer’s limit for both the crane and the load. Throughout the shift, continuously monitor wind conditions with an appropriate instrument or reliable weather source, and re-check the limits whenever conditions change. The key principle is clear: operate only within the specified wind limits, and take immediate action to reduce or stop lifting if those limits are reached or exceeded.