Which term is used for adjusting the chassis positioning to achieve proper alignment?

• A. Chassis Tongue
• B. Limit Switches
• C. Chassis Leveling
• D. Wireless Controls

Answer: (A)

Positioning the chassis to sit correctly in relation to the escalator structure is done by adjusting the chassis tongue. The tongue is the movable part that interfaces with the guiding surfaces, and tweaking its position moves the entire chassis so that the steps, tracks, and drive components align properly. Limit switches are sensors that stop motion when a limit is reached, not used to set alignment. Chassis leveling changes vertical height but doesn’t control the horizontal positioning needed for proper alignment. Wireless controls don’t affect mechanical alignment either. So the term used for adjusting the chassis positioning to achieve proper alignment is chassis tongue.