1. Ntau ntawm kev siv
Screws yog dav siv thiab tuaj yeem siv hauv ntau thaj teb xws li tsheb, muaj zog, rooj tog, thiab kev tsim kho. Vim muaj ntau hom thiab cov kev qhia tshwj xeeb ntawm cov ntsia hlau, lawv tuaj yeem ua tau raws li cov kev xav tau ntawm txawv teb.
2. Yooj yim rau nruab
Tus qauv tsim ntawm cov ntsia hlau yog yooj yim, yooj yim rau nruab, thiab cov cuab yeej xav tau kuj muaj. Feem ntau, tsuas yog ib lub wrench lossis torque wrench xav tau los nruab nws. Qhov no yog ib qho ntawm cov laj thawj yog vim li cas cov ntsia hlau tau siv dav.
3. Cov kabmob muaj zog muaj peev xwm
Tus tsim qauv ntawm cov ntsia hlau yog ntawm cov kabmob, uas tuaj yeem tiv taus loj loj siab thiab nro, thiab kev txhim kho tau zoo heev. Yog li ntawd, nws tau siv dav hauv ntau thaj teb.
4. Lub zog ruaj khov
Cov ntsia hlau adpts tus qauv tshwj xeeb tsim qauv thiab ua cov thev naus laus zis, uas muaj cov yam ntxwv ntawm kev kho ruaj thiab tsis yooj yim kom plam. Nws tuaj yeem ua kom cov ruaj khov ntawm kev kho thiab tiv thaiv kev loosening thiab poob thaum siv.
