What is a key sign of inadequate escalator maintenance?

Increased operational noise is indeed a key sign of inadequate escalator maintenance. When an escalator is not properly maintained, various components, such as the drive system, rollers, and chains, can wear down or become misaligned. This wear and misalignment can lead to increased friction and vibration, which in turn produces more noise. Maintenance routines are designed to keep these vital components in good working order, minimizing noise and ensuring smooth operation.

In stark contrast, decreased travel speed can sometimes be related to safety protocols or mechanical adjustments rather than a lack of maintenance. Improved escalator aesthetics typically indicates that maintenance is being performed, aimed at keeping the unit visually appealing. Consistent stair illumination is also a sign of regular upkeep; proper lighting is vital for safety and indicates that the electrical systems are functioning correctly. Therefore, when operational noise increases, it often points to mechanical issues that have been neglected, underscoring the importance of ongoing maintenance.