I-elevator yentsimbi yokulahla umgangatho Amanqaku aphambili oyilo lombane kwi-elevator kunye negumbi lomatshini Isixhobo sokhuseleko siya kuqalisa xa ilifti ityebe kakhulu Ziziphi iimfuno zocango lwe-elevator? I-elevator lubrication kunye neemfuno zokusebenza kwi-oyile yokuthambisa Imibuzo emininzi ekufuneka iqondwe ngabasebenzisi be-elevator