Nres tuaj yeem khaws cov khoom uas nyob twj ywm thaum so. Piv txwv li, nyob rau hauv ib tug hoisting mechanism, qhov hnyav hoisting yog nyob ruaj ruaj nyob rau hauv cov huab cua. Nyob rau hauv lub luffing mechanism ntawm lub jib crane, lub jib yog tswj ntawm ib tug tej yam txoj hauj lwm thiab nyob twj ywm nyob twj ywm, uas plays lub luag hauj lwm ntawm windproof thiab anti- plam rau sab nraum zoov crane.
Nres yog cov khoom tseem ceeb los xyuas kom muaj kev nyab xeeb ntawm cranes. Nws yog ib qho tseem ceeb uas siv los xyuas kom meej qhov tseeb, txhim khu kev qha thiab kev nyab xeeb kev ua haujlwm ntawm kev nqa nqa, thiab xyuas kom qhov chaw nres ntawm cov khoom dai.
Lub braking system tuaj yeem muab faib ua kev pabcuam braking system, nres nres nres, nres thaum muaj xwm txheej ceev thiab pab nres nres. Kev sib txhuam ntawm kev sib txuas ntawm cov khoom sib txuas (lossis tsav shafts) los tiv thaiv lub log los ntawm kev tig los yog tig mus.
