(1) Kev ywj pheej ntawm kev txav mus los, nyob rau hauv cov xwm txheej ntawm nws lub peev xwm nqa thiab qhov loj, nws tuaj yeem ua haujlwm feem ntau ntawm kev nqa khoom hauv tag nrho lub Hoobkas lossis hauv vaj.
(2) Ntxiv nrog rau kev siv lub crane, nws tuaj yeem nruab nrog ntau yam shovel grabs, trenchers thiab duav rau lwm yam haujlwm ntawm lub boom.
(3) Cov qauv ruaj khov xws li cov nyiaj siv ua haujlwm tsis tas yuav tsum tau ua, yog li kev nqis peev hauv vaj tse, cov nqi tsim khoom lossis cov nqi kho yuav raug txo.
(4) Lub zog hluav taws xob nws tus kheej tsis tas yuav nruab ib lub feeder cable lossis hu rau cov khoom siv hluav taws xob.
(5) Nws tuaj yeem tso cov load rau hauv av, hauv qab av lossis siab dua li lub tsheb crane. Vim yog qhov zoo li saum toj no, cov tsheb thauj khoom cranes tau siv dav hauv kev thauj mus los, kev tsim kho, kev tsuas thiab kev tsim kho cov haujlwm kom thauj khoom thiab tshem tawm cov khoom loj, pob khoom, cov khoom seem thiab cov khoom siv hauv tsev. Tshwj xeeb tshaj yog thaum cov khoom tawg, cov khoom xa tuaj thiab tau txais me me, lossis kev teeb tsa ua haujlwm me me, thiab nws tsis tsim nyog siv cov cuab yeej nqa tshwj xeeb, lub tsheb crane yog dav siv.
