What item is commonly included on a startup checklist for mechanical equipment?

The inclusion of oil and fluid levels on a startup checklist for mechanical equipment is essential for ensuring the proper functioning and longevity of the machinery. It is crucial to check these levels because adequate lubrication is necessary to reduce friction between moving parts, prevent overheating, and minimize wear and tear. Insufficient oil or fluid can lead to equipment failure or damage, which might result in costly repairs or safety hazards during operation.

While factors such as operating temperature, electrical connections, and the availability of safety gear are also important in the overall safety and efficiency of equipment operation, they are not as immediately critical as ensuring that lubrication is present at the appropriate levels. Checking oil and fluid levels should be done first, as it can have direct implications on the operational readiness of the equipment.