When should the signalperson signal to change the speed of the crane?

The appropriate time for the signalperson to indicate a change in the speed of the crane is to maintain load control based on site conditions. This is vital because varying conditions, such as changes in wind, uneven ground, or obstacles in proximity to the crane, can necessitate adjustments in speed. By signaling to change the crane's speed, the signalperson ensures that the load remains stable and secure throughout the operation, thereby enhancing safety and preventing accidents.

Signalperson decisions should be based on real-time assessments of the environment and load behavior. While communication with the operator is important, it should not be the sole reason for altering crane speed, as maintaining optimal load control is a priority. Signaling at the start of every lift or when the load is fully raised does not allow for real-time adjustments that might be necessary during operations. Thus, focusing on site conditions presents the most adaptive and safety-oriented approach to crane signal operations.