Zili ndi makhalidwe a chitetezo ndi kudalirika, kukonza kosavuta, kuyendetsa bwino kwa makina, kutsika kochepa kwa chibangili, kulemera kochepa komanso kosavuta kunyamula, maonekedwe okongola ndi kukula kochepa, komanso kukhazikika. Ndizoyenera kukhazikitsa makina ndi kukweza katundu m'mafakitale, migodi, malo omanga, ma docks, docks, nyumba zosungiramo katundu, ndi zina zotero.