Chifukwa chakuti woperekayo ali ndi kapangidwe kambiri ndipo ndikosavuta kusunga, kumagwiritsidwa ntchito kwambiri. Ogwiritsa ntchito zida zojambulira ayenera kulabadira kukonzedwa ndi kukonza makina pantchito yawo yatsiku ndi tsiku. Mafuta a woperekayo ndi wofunikira kwambiri. Opanga Opanga Nthawi zambiri amagwiritsa ntchito njira zotsatirazi:

1. Wolemba matenthedwe amasintha matenthedwe opangira mafuta odzigudubuza, ndipo kutentha kwa kumeta uyenera kusungidwa mkati mwa mitundu yomwe yatchulidwa;

2. Wolembayo amapanikizika kapena kulowerera mafayilo ndipo mtedza uyenera kuthiridwa ndi mafuta pafupipafupi, ndipo cholumikizira ndi nati kwenikweni chomwe sichimagwiritsidwa ntchito kawirikawiri chomwe sichikugwiritsidwa ntchito kuyenera kusindikizidwa ndi zisindikizo za mafuta;

3. Otsatsawo ayenera kusunga zida zogwiritsidwa ntchito mu zida, pulumwa pafupipafupi, onani pafupipafupi, ndikuwasunga kwathunthu;

4. Chifukwa cha miyala ya mafuta pomwe wonyoza amangodzazidwa okha ndi mafuta, kuthamanga kwa mafuta, kuchuluka kwamafuta, kutentha kwa mafuta kwa pampu mafuta kuyenera kusamitsidwa pafupipafupi, ndipo mavuto aliwonse ayenera kuchitidwa ndi nthawi;

5. Ogwiritsa ntchito mafuta opaka kuyenera kuwunikira pa nthawi, samalani ngati pali zosintha zamafuta ndi kusintha kwamafuta m'matumba, komanso kuthana ndi mavuto munthawi.