What should be ensured about the fly sections of extension ladders during inspections?

The correct focus during inspections of the fly sections of extension ladders is that they move freely. This is crucial for the proper operation of the ladder. Extension ladders are designed to extend and retract smoothly, allowing firefighters to adjust the ladder's height as needed based on the situation at hand. If the fly sections do not move freely, it can hinder deployment and potentially put firefighters at risk during operations, as they may struggle to extend the ladder quickly or effectively.

Having smooth, unobstructed movement is essential for functionality and safety. Inspectors should check for any debris, corrosion, or other issues that could impede this movement. Therefore, ensuring that the fly sections are operational is key to the ladder's reliability and safety during fire operations.