Njengoba sazi, ukusika insimbi kuzokhiqiza ukushisa okuningi ukuze kugqoke amathuluzi kanye nezinto zokusebenza ezilimazayo. Kuyadingeka ukusebenzisa isipholile ukususa ngokushesha ukushisa kokucubungula nokulawula izinga lokushisa lokucubungula. Kodwa-ke, ukungqubuzana okuqinile phakathi kokungcola kwesipholile kanye nethuluzi nesiqeshana somsebenzi kuzolimaza ikhwalithi yendawo esebenza ngomshini, kufinyeze ukuphila kwamathuluzi, futhi kukhiqize inkungu kawoyela eningi ukungcolisa umoya, ukumosha uketshezi kanye ne-slag ukulimaza imvelo.
Ngakho-ke, ukuthuthukisa ukuhlanzeka kokusika uketshezi nokulawula izinga lokushisa lokusika uketshezi kunganciphisa ukubekezelela ukuhlakazeka, ukunciphisa imikhiqizo yemfucuza, ukuthuthukisa ukuqina kwamathuluzi futhi kuthuthukise ngempumelelo ikhwalithi yomshini.
Ngaphezu kwalokho, ubuchwepheshe bokulawula izinga lokushisa obunembayo bungasetshenziswa futhi ukulawula ngokunembile ukuwohloka okushisayo kwezingxenye ukuze kuthuthukiswe ukunemba kwemishini. Isibonelo, ukulawula ukuguquka kwezinga lokushisa kwegiya eliyinkomba le-grinder yegiya ngaphakathi kuka-± 0.5 ℃ kungabona ukudluliswa okungenazikhala futhi kuqede iphutha lokudlulisela; Iphutha le-screw pitch lingalawulwa ngokunemba kwe-micrometer ngokulungisa izinga lokushisa lokucubungula isikulufu ngokunemba okungu-0.1 ℃. Ngokusobala, ukulawulwa kwezinga lokushisa okunembayo kungasiza ukwenza imishini ifinyelele ukunemba okuphezulu okungenakufezwa ngobuchwepheshe bemishini, ugesi, amanzi kanye nobunye ubuchwepheshe bubodwa.