Lub escalator nkag thiab tawm npog yog ib daim npog uas npog qhov nkag thiab tawm ntawm lub escalator. Nws lub luag haujlwm tseem ceeb yog los tiv thaiv cov cuab yeej siv tshuab thiab kev ua haujlwm ntawm lub escalator. Kev siv npog tsis tsuas yog txo qhov muaj peev xwm ntawm cov khoom siv sab nraud nkag mus rau sab hauv ntawm lub escalator, lawv kuj muab kev nkag mus rau thiab los ntawm tus escalator.
Escalator handrail nkag lub thawv installation feem ntau yog xa tawm hauv thawv lossis thawv ntoo; yog tias koj muaj kev xav tau tshwj xeeb, thov hu rau cov neeg siv khoom.