Which of the following is an outcome of regular preventive maintenance?

Regular preventive maintenance is crucial for ensuring the optimal functioning of hydraulic excavators and other machinery. The correct outcome of such maintenance is enhanced performance and longevity. This is achieved through scheduled inspections, servicing, and repairs that address wear and tear before they lead to significant issues.

By maintaining the components of the excavator—such as the hydraulic systems, filters, and moving parts—operators can ensure that the machinery runs smoothly and efficiently. This proactive approach minimizes the risk of breakdowns, enhances operational performance, and extends the overall life of the equipment. Regular check-ups and necessary adjustments can lead to improved reliability and reduce the likelihood of costly repairs in the future, ultimately supporting the productivity of operations.

In contrast, the other options highlight negative outcomes that would typically result from a lack of preventive maintenance, such as increased fuel consumption, decreased operational efficiency, or a higher likelihood of accidents due to neglect. These are scenarios that could arise if maintenance practices are not followed diligently, underscoring the importance of regular preventive measures in achieving optimal machine performance.