Rough-terrain cranes are designed to be operated within what percentage of being level?

Rough-terrain cranes are engineered for safe operation on uneven surfaces, and they must remain nearly level to maintain stability and prevent tipping during lifting operations. The correct percentage of being level for these cranes is 1%.

This criterion is based on safety guidelines that account for the dynamic forces exerted on the crane during operation. When a rough-terrain crane operates on surfaces that exceed a 1% slope, the risk of overturning increases significantly. Adhering to this specification ensures that the crane maintains its center of gravity, thereby preventing accidents and enhancing overall safety on the job site.

In contrast, the other percentages mentioned are greater and do not align with the safety standards and operational guidelines set for rough-terrain cranes. Accepting a larger slope could compromise the crane's stability and operational integrity, which is why maintaining a strict 1% level is critical.