Khomo la escalator ndi chivundikiro chotuluka ndi chivundikiro chomwe chimakwirira khomo ndi potuluka pa escalator. Ntchito yake yayikulu ndikuteteza zida zamakina ndi nsanja yogwirira ntchito ya escalator. Kufikira kumakwirira sikungochepetsa kuthekera kwa zinthu zakunja kulowa mkati mwa escalator, komanso kumapereka mwayi wofikira komanso kuchokera pa escalator.