The Language of the Lift

Welcome back, let’s Build Smart & Build Safe! On a noisy jobsite, the voice is useless. When a crane is moving a 10-ton load, the only thing that matters is the visual communication between the rigger and the operator. Many workers struggle with "mixed signals," where vague gestures lead to jerky movements and dropped loads.

Clear, standardized hand signals are not just a requirement; they are the only thing preventing a "misunderstanding" from becoming a fatality.

The Communication Loop

In rigging, there is only one "designated signal person" at a time. The operator should only follow the directions of that one person to avoid confusion. However, there is one major exception: The Emergency Stop.

• The Emergency Stop: Anyone on the jobsite, regardless of their trade or rank, can give the Emergency Stop signal if they see a hazard. The operator is required to obey this signal immediately, no matter who gives it.

• Standardization: Use OSHA-standardized signals. Vague "pointy" fingers or "come here" waves are prohibited. If the operator cannot clearly see or understand the signal, they must stop the crane and wait for clarification.

• Line of Sight: If the signal person loses sight of the load or the operator, the lift must stop. In "blind lifts," radio communication must be constant. If the radio goes silent, the operator stops the movement.

Implementation: The Pre-Lift Huddle

Before the first whistle blows today:

1. Designate the Lead: Clearly identify who is the primary signal person for the lift.

2. Check Visibility: Ensure the signal person is wearing high-visibility clothing that contrasts with the background so the operator doesn't lose them in the shadows or the steel.

3. Confirm the Path: Walk the path of the load. If the signal person has to move to keep sight of the crane, plan those "transition points" before the load is in the air.

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-The Safety Man