Tricks With Tools on Instagram: "Escalator Inner Workings & Comb Plate Maintenance Ever wonder what complex mechanism is moving underneath your feet? 🤯 This fascinating behind-the-scenes video reveals the inner workings of a modern escalator, showing the rollers, tracks, and the chain system that moves the steps. The second half shows a technician performing a crucial part of routine escalator maintenance: checking and resetting the comb plate. This metal grating is where the steps "disappear"