Chainsaw ndi chidule cha "mafuta a petulo" kapena "macheka amagetsi a petulo".Ikhoza kugwiritsidwa ntchito popanga mitengo ndi kufota.Njira yake yocheka ndi macheka.Gawo lamphamvu ndi injini yamafuta.Ndi yosavuta kunyamula komanso yosavuta kugwiritsa ntchito.

Njira zogwirira ntchito za chain saw:

1. Choyamba, yambani macheka a unyolo, kumbukirani kuti musakokere chingwe choyambira mpaka kumapeto, mwinamwake chingwe chidzathyoledwa.Mukayamba, chonde kolani pang'onopang'ono chogwirira choyambira ndi manja anu.Mukafika poyimitsa, kokerani mmwamba mwachangu ndikusindikiza chogwirira chakutsogolo nthawi yomweyo.Komanso samalani kuti musalole kuti choyambira chizigwira mobwerera momasuka, wongolerani liwiro ndi dzanja, pang'onopang'ono mutsogolerenso mumlandu kuti chingwe choyambira chizikulungidwa.

2. Chachiwiri, injiniyo ikathamanga kwambiri kwa nthawi yaitali, ilole kuti ikhale yopanda ntchito kwa nthawi kuti iziziritse kutuluka kwa mpweya ndikutulutsa kutentha kwakukulu.Pewani kudzaza kwazinthu zambiri pa injini zomwe zingayambitse kuyaka.

3. Apanso, ngati mphamvu ya injini ikutsika kwambiri, zikhoza kukhala chifukwa fyuluta ya mpweya ndi yonyansa kwambiri.Chotsani fyuluta ya mpweya ndikuyeretsa dothi lozungulira.Ngati fyulutayo yakanidwa ndi dothi, mutha kuyika fyulutayo mu chotsukira chapadera kapena kutsuka ndi njira yoyeretsera ndikuumitsa.Mukayika fyuluta ya mpweya mutatha kuyeretsa, fufuzani kuti zigawozo zili bwino.