When giving hand signals, what must the ground worker and machine operator do?

Maintaining direct visual contact between the ground worker and the machine operator is crucial for safety and effective communication. This practice ensures that both parties can accurately interpret the hand signals being given, which are essential for coordinating movements and preventing accidents during operations.

Having direct visual contact allows for clear understanding of signals, immediate feedback, and the ability to react promptly to any changing circumstances on the work site. This level of engagement minimizes the risk of miscommunication that can arise if they are not able to see each other, thus enhancing overall safety when operating heavy machinery or equipment.

In situations where visual contact is not established, other methods, such as verbal communication or communication devices, may not be as effective in ensuring safety during critical operations.