What does a downward arm motion signal for a load?

A downward arm motion is a commonly recognized signal in rigging and lifting operations that indicates to the operator that the load should be lowered. This gesture is part of a standardized system of signals used by signal persons to communicate effectively with equipment operators, ensuring safety and efficiency on the job site.

When the signal person uses a downward arm motion, it conveys a clear and direct message to lower the load, which is critical during lifting operations. The operator must understand this signal immediately to adjust the load's position safely without confusion. This action also helps prevent accidents that could occur if the operator misinterprets a signal.

In contrast, signals indicating to raise the load, stop, or move sideways would involve different gestures, such as upward or horizontal arm motions. Understanding these distinctions in signaling is vital for maintaining safe operations and ensuring that all personnel on site are aware of the intentions behind these signals.