Which of the following tasks should be avoided when operating heavy machinery?

Engaging in distractions while operating heavy machinery is a critical task to avoid because distractions can significantly impair a person's ability to focus and react appropriately to the environment and equipment. Operating heavy machinery requires full concentration to ensure the safety of the operator, nearby workers, and the equipment itself. Distractions can come from various sources, such as mobile devices, conversations, or even personal thoughts, and can lead to accidents, injuries, or damage to the machinery or surrounding areas.

In contrast, following operator instructions, performing maintenance checks, and using proper hand signals are essential practices that enhance safety and operational efficiency. These tasks ensure that the machinery operates as intended, that any potential issues are identified and addressed, and that clear communication is maintained among operators and team members, which is vital in maintaining a safe working environment.