Final answer:
Regular maintenance of the optimal vacuum level is required for adequate performance of a vacuum pump, which includes replacing key components and monitoring indicators.
Step-by-step explanation:
To ensure that the vacuum pump performs adequately, the optimal vacuum must be changed on a regular basis. The word optimal suggests that the equipment should operate at its best performance level. Changing the vacuum refers to maintenance actions such as checking and replacing the oil, seals, and filters whenever necessary to maintain performance and efficiency of the pump. This can include monitoring the vacuum level, temperature, and other performance indicators to ensure that the pump is functioning within its recommended operating conditions. A vacuum pump operating at its optimal condition will have longer operational lifespans, better performance, and decreased risk of failure.