Thaum lub tsheb yuam sij tsis tuaj yeem muab tso rau hauv lub xauv, nws tuaj yeem yog vim ntau yam. Ua ntej, xyuas seb puas muaj cov khoom txawv teb chaws hauv qhov keyhole lossis yog tus yuam sij nws tus kheej puas lossis deformed. Nyob rau hauv tas li ntawd, koj muaj peev xwm sim lubricating nrog mem hluav lead. Yog tias qhov ntawd tsis ua haujlwm, xav txog kev hloov tag nrho lub xauv mechanism.
Yog tias qhov teeb meem tshwm sim, cov xwm txheej txawv txav hauv qhov hloov hluav taws xob kuj tuaj yeem tiv thaiv tus yuam sij los ntawm kev tso kom raug. Txoj kev daws teeb meem hauv qhov no yog los hloov qhov hloov hluav taws xob nrog ib qho tshiab. Yog tias cov txheej txheem no tsis ua haujlwm, nws yuav yog vim lub kaw lus tseem ceeb lossis cov springs puas lawm, yuav tsum tau hloov los ntawm lub khw kho kev tshaj lij.
Tsis tas li ntawd, qhov kub qis tuaj yeem ua rau lub qhov tseem ceeb khov. Yog tias koj yuav tsum siv lub tsheb ceev, sim ua kom sov cov hlau ntawm tus yuam sij ua ntej tso nws dua, lossis tshem tawm cov kev cuam tshuam. Qhov tsis muaj peev xwm ntxig lub tsheb yuam sij rau hauv lub xauv tuaj yeem tshwm sim los ntawm ntau yam, tab sis kev ceev faj txog kev daws teeb meem thiab kev ntsuas tsim nyog raws li qhov xwm txheej tshwj xeeb tuaj yeem daws qhov teeb meem no tau zoo.
