Feem ntau yog siv rau hauv cov kav dej rau lim roj lossis lwm yam kua, carbon steel vaj tsev thiab stainless hlau lim pob tawb. Lub luag haujlwm tseem ceeb ntawm cov cuab yeej yog tshem tawm cov khoom loj (cov lim dej ntxhib), ntxuav cov kua dej, thiab tiv thaiv cov khoom tseem ceeb.
Lub 2 pob tawb lim yog txuas nrog li qub.
Thaum ib qho ntawm cov lim siv, lwm qhov tuaj yeem nres rau kev ntxuav, vice versa.
Qhov kev tsim no tshwj xeeb rau cov ntawv thov uas yuav tsum tau ua kom pom kev tsis tu ncua.
Khoom noj khoom haus qib, cov qauv yog yooj yim, yooj yim rau nruab, khiav lag luam, disassemble thiab tswj. Tsawg hnav qhov chaw, ua haujlwm tsawg thiab cov nqi tu.
Cov ntxaij lim dej sib nqus yog tsim los ntawm cov khoom siv hlau nplaum muaj zog thiab cov ntxaij lim dej thaiv. Lawv muaj kaum npaug ntawm cov nplaum quab yuam ntawm cov khoom sib nqus dav dav thiab muaj peev xwm adsorbing micrometer-loj ferromagnetic pollutants nyob rau hauv ib qho instant kua ntws cuam tshuam los yog siab txaus lub xeev. Thaum ferromagnetic impurities nyob rau hauv lub hydraulic nruab nrab dhau los ntawm qhov sib txawv ntawm cov hlau rings, lawv tau adsorbed mus rau lub nplhaib hlau, yog li ua tiav cov nyhuv lim.