Txoj kev tsheb ciav hlau feem ntau muaj 4 lossis 6 qhov ntawm lawv lub cev. Ua ntej txhim kho cov pob qij txha, cov ntsia hlau ntsia hlau yuav tsum tau nruab nrog lub caij nplooj ntoos hlav ntxhua khaub ncaws, thiab ib txheej ntawm cov roj lubricating yuav tsum tau siv rau saum npoo ntawm cov ntsia hlau ntsia hlau thiab lub caij nplooj ntoos hlav washers. Thaum lub sij hawm installation ntawm railway pob qij txha, nws yog ib qhov tsim nyog los ntxig lub railway sib koom gasket ntawm qhov sib koom ua ke. Qhov no ua kom ntseeg tau tias cov tsheb ciav hlau sib koom ua ke nrog cov txheej txheem tshwj xeeb, thiab nws pab kho qhov chaw nruab nrab ntawm cov hlau ntsia ib txhij. Txhawm rau kom muaj kev sib raug zoo, ncaj nraim rau sab nrauv rail Tshuag raws li txoj hauj lwm ntawm lub hauv paus pawg. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum lub sij hawm installation ntawm railway pob qij txha, tej zaum yuav ua yuam kev nyob rau hauv lub ntev ntawm txhua khub ntawm steel rails, uas ua rau tej lub sij hawm zoo los yog tsis zoo offsets.
