What should be checked during a pre-operational inspection of an excavator?

During a pre-operational inspection of an excavator, it is crucial to check various components to ensure the machine is safe and ready for operation. The correct choice highlights the importance of checking fluid levels, hoses, tracks, brakes, and the overall machine condition.

Fluid levels, such as hydraulic fluid and engine oil, must be within the recommended ranges to prevent operational failures. Hoses should be inspected for any signs of wear or leaks, as they are essential for the hydraulic system's performance. The condition of the tracks is vital for the machine's mobility and stability, while the brakes must be functional to ensure safe operation, especially on slopes or during sudden stops. Additionally, evaluating the overall machine condition helps identify any other potential issues that could affect performance or safety during operation.

This thorough inspection ensures that any problems are detected early, reducing the risk of malfunctions or accidents while the excavator is in use. It emphasizes a comprehensive approach to safety and machine readiness rather than focusing on specific parts or superficial aspects.