Which is an example of preventative maintenance for a conveyor system?

• A. Regularly scheduled oil changes and belt inspections
• B. Upgrading the control software
• C. Installing new sensors after a fault
• D. Replacing the entire system annually

Answer: (A)

Preventive maintenance is about performing planned, regular servicing to stop problems before they happen. For a conveyor system, that means keeping moving parts well-lubricated and routinely inspecting the belt for wear, proper tension, and tracking. Regular oil changes reduce friction and heat in bearings, helping them last longer and preventing unexpected seizures. Belt inspections catch signs of wear, cracking, or misalignment before a failure shuts down the line, so the belt can be repaired or adjusted in time. Upgrading control software is more about system modernization and performance than directly preventing mechanical wear. Installing new sensors after a fault is reactive—addressing a problem after it occurs rather than preventing it. Replacing the entire system annually is a replacement activity, not preventive maintenance.