What is a common sign that equipment needs maintenance?

Unusual sounds or vibrations during operation are clear indicators that equipment may require maintenance. These signs suggest that something is not functioning as intended, potentially due to wear and tear or other mechanical issues. Noises that deviate from the normal operational sounds can indicate friction, misalignment, or failing components. Similarly, vibrations can signal mechanical imbalances or loose parts, which, if not addressed promptly, could lead to more significant equipment failures or safety hazards.

While long operating hours, slow performance, and regular maintenance schedules can also inherently suggest potential issues, they do not specifically pinpoint immediate mechanical problems the way unusual sounds and vibrations do. Long operating hours could simply mean the equipment is being used extensively, whereas slow performance may arise from factors unrelated to mechanical integrity. Regular maintenance schedules are part of a proactive approach to equipment care, but they do not typically illustrate a current need for maintenance on their own.