Performs preventative maintenance and basic repairs on trucks, equipment, and facilities, such as replacing filters, lubricating equipment, conducting tool and equipment inventories, completing minor repairs, cleaning and inspecting power tools, and changing blades or similar components. Environmental conditions include work performed inside or outside and includes being exposed to cold, heat, noise, vibration, mechanical hazards, and electrical hazards, atmospheric conditions that affect the respiratory system, oils, and the use of Self-Contained Breathing Apparatus.