Which of the following is NOT an important step of regular maintenance?

Operating at high temperatures is not an important step of regular maintenance because it can actually lead to increased wear and tear on machinery. Regular maintenance aims to optimize the performance and longevity of equipment, and maintaining appropriate operating temperatures is crucial for efficiency and to prevent overheating, which can cause damage. In contrast, keeping fluids clean, eliminating leaks, and using the correct pressure are all essential practices in maintenance that help ensure the machinery operates smoothly and reliably, reducing the risk of failures and extending the life of the equipment.