Khetha mefuta e mengata e fapaneng ea li-idler tse ka pele tse loketseng ho tloha ho lithane tse 0.2-120 tsa likoloi tse lateloang, joalo ka liepolli, li-bulldozer le mechini e khethehileng.
Ts'ebetso e khethehileng ea phekolo ea mocheso e fella ka bophelo bo bolelele, tekanyo e kholo ka ho fetisisa ea tlas'a tsela e boima, e thibela ho arohana.
Sebelisa tiiso e tlaase le e phahameng-habeli e etsa hore e be lubrication ea bophelo, e loketse bakeng sa kopo e tloaelehileng le e khethehileng ea mocheso.
Khetha mefuta e mengata ea taolo ea selemo, ho feto-fetoha ha maemo ho phahameng le taolo ea mofuta oa hydrocarbon e leng likopo tsa boemo ba ho sebetsa morafong.
