Thaum xaiv cov khoom siv, yuav tsum xav txog ntau dua rau cov khoom hnyav, ruaj khov, thiab ruaj khov, yog li txawm tias muaj xwm txheej tshwj xeeb, lawv tuaj yeem muab kev nyab xeeb ntau dua.
Kev xaiv ntawm cov menyuam kaw lub qhov rooj lub cev muaj zog kuj yog ib kauj ruam tseem ceeb. Ceev faj tsis txhob xav tias ntev npaum li lub peev xwm nqa tau txaus, nws txaus. Qhov no yog vim lub load-cov kabmob muaj peev xwm ntawm cov menyuam kaw lub qhov rooj lub cev muaj zog yuav maj mam txo mus rau lub sijhawm, txo qhov kev nqa qhov tseeb. Yog li ntawd, thaum xaiv cov ntaub ntawv, nws yog qhov zoo tshaj kom tshaj qhov tseeb lifting peev ntawm lub qhov rooj ntaub.
Saib xyuas seb tus qauv ntawm lub tshuab hluav taws xob lub qhov rooj kaw qhov rooj yog qhov tseeb thiab qhov℃ntawm lubrication. Lub qhov rooj kaw qhov rooj hluav taws xob zoo muaj cua sov zoo dua, siv tag nrho - iav kev sib hloov, tsis muaj chains lossis siv hlua, yog li txhim kho tag nrho lub neej ntawm lub qhov rooj mechanism.
Hom tshuaj kuj yog ib qho tseem ceeb. Txhawm rau txo cov nqi tsim khoom, ntau lub rooj cob qhia me me ua rau txo qis ntawm cov khoom zoo, uas txhais tau hais tias qhov zoo tsis tuaj yeem lav tau thaum lub sijhawm teeb tsa, thiab tib yam siv rau kev saib xyuas. Yog li ntawd, cov neeg siv khoom yuav tsum tsim nyog xav txog lub tuam txhab lub npe thaum yuav lub qhov rooj rau cov menyuam.