Normal service refers to the regular maintenance and upkeep of motors to ensure they continue to function properly. Synonyms for normal service may include routine maintenance, scheduled maintenance, periodic check-up, standard upkeep, regular servicing, or scheduled inspections. These terms all refer to the necessary actions taken to keep motors in good condition, such as changing oil, replacing parts, and inspecting for wear and tear. Ensuring normal service of motors is essential for extending their lifespan and preventing breakdowns, which can be costly and time-consuming. Regular maintenance not only ensures continuous operation but also reduces the chances of unexpected mishaps.