What should be checked before servicing a digger derrick?

Ensuring that the engine is off and cooled down is crucial for safety before servicing a digger derrick. When the engine is running or has been recently turned off, it can pose various hazards, such as the risk of accidental starting or burns from hot components. By confirming that the engine is not only off but also cooled down, technicians reduce the likelihood of such accidents occurring, allowing them to conduct their service with a lower risk of injury.

Other checks, while important for overall operational readiness and safety, pertain to different aspects of the machine or the work environment. Fuel levels and tire pressure are essential for operational efficiency but do not directly pertain to the immediate safety measures one would prioritize before beginning any servicing. Verifying that all safety equipment is available is also critical, yet it assumes that the environment is safe to work in before any servicing commences. Thus, the primary focus should be on ensuring the machine's engine is completely turned off and cooled to handle the servicing safely.