What wind limits are typically considered for mobile crane operations, and how do you verify acceptable conditions?

• A. Wind limits depend on crane type and configuration; often range from 20 to 30 mph (or lower for higher lifts). Verify via the crane manual, use an anemometer, observe gusts, and suspend lifts if limits are exceeded.
• B. Wind limits are always 60 mph.
• C. Wind limits are not important.
• D. Wind limits are determined by the operator's preference.

Answer: (A)

Wind limits for mobile crane operations vary with the crane type and how it’s configured, and the allowable speed goes down as the lift height or boom length increases. In practice, you’ll often see limits around 20 to 30 mph, with lower values for tall lifts or when the crane is extended. To verify acceptable conditions, consult the crane’s manual or data plate for the wind-speed rating that matches the current configuration. Use an anemometer to measure the wind at the job site and, if possible, at the height of the load, and watch for gusts because they can temporarily exceed the steady wind speed. If the wind reaches or exceeds the rated limit or gusts are strong, suspend lifts and re-evaluate before proceeding. Wind is important for stability and safety, and limits are set by the equipment and procedures rather than by personal preference or a single universal number.