Yog hais tias lub tsheb kauj vab tau xoob thaum tsav tsheb, qhov no yuav yog vim hnav hauv lub kauj. Cov hnav tuaj yeem muab faib ua cov teeb meem sab hauv thiab sab nraud. Kev hnav sab nraud suav nrog cov teeb meem xws li kev ua si ntau dhau ntawm lub kauj tsheb sib koom ua ke, hnav hnyav ntawm cov hlua khi, thiab xoob lub kauj vuam bolts. Kev hnav sab hauv tuaj yeem cuam tshuam cov teeb meem xws li hydraulic twj tso kua mis thiab lwm yam tsis raug hauv lub kauj iav.
Txhawm rau hais txog lub kauj tsheb xoob, yuav tsum tau ua ntau yam kev ntsuas. Ua ntej, kev tshuaj xyuas thiab kho kom raws sijhawm yog qhov tseem ceeb, tshwj xeeb tshaj yog los ntawm kev mus ntsib ib lub chaw kho mob xws li lub tuam txhab kev pabcuam tsheb. Qhov no tuaj yeem pab tiv thaiv kev nyab xeeb ntxiv los ntawm kev siv sijhawm ntev, ua kom muaj kev nyab xeeb ntawm lub tsheb. Tsis tas li ntawd, cov tswv tsheb yuav tsum tau xyuam xim rau cov ntsiab lus thaum lub sij hawm tu, niaj hnub tshuaj xyuas cov kauj ruam thiab ua kom nws zoo-kho kom ntev nws txoj sia.
Lub kauj log xoob yog ib feem ntawm lub tsheb ib txwm hnav thiab tsim kua muag, tab sis kev saib xyuas thiab kev saib xyuas raws sij hawm tuaj yeem txo qhov zaus ntawm qhov teeb meem no thiab xyuas kom muaj kev nyab xeeb ntawm kev tsav tsheb. Nws yog ib qho tseem ceeb rau cov tswv tsheb los saib xyuas thiab hais txog lub kauj log xoob kom muaj kev nyab xeeb thiab kev tsav tsheb zoo.
