What must a shuttle car operator do when tramming through a check curtain?

When a shuttle car operator is tramming through a check curtain, sounding the alarm is essential for safety. This action serves multiple purposes: it alerts other personnel in the area that a vehicle is in motion, enhancing situational awareness, and it helps to prevent accidents by notifying individuals who may be near the pathway of the shuttle car. Check curtains are often used to guide air flow and to distinguish different areas in a mine; therefore, safely navigating through them while ensuring that others are aware of the vehicle’s movement is a crucial protocol in mining operations.

In this scenario, increasing speed or stopping immediately could lead to safety hazards, while checking surroundings is an important practice but not the specific required action when passing through a check curtain. Sounding the alarm is a proactive measure that contributes directly to maintaining safety and minimizing risks associated with vehicle movement within these specified areas.