When working with heavy machinery, what should always be checked before beginning?

It is crucial to check all listed factors before beginning work with heavy machinery to ensure safety and operational efficiency. Weather conditions can significantly impact machine performance and worker safety; for instance, rain or strong winds can affect visibility and traction. Next, checking machine fuel levels is essential to avoid interruptions during operation, which can lead to unsafe situations or potential damage to the machinery. Lastly, surveying the surroundings for obstacles is vital to prevent accidents, as shifting or mobile hazards can pose a threat to operators and bystanders. By considering all these factors, one can help create a safer work environment and mitigate risks associated with heavy machinery operation.