Mabda'a shaqada ee waalka laba-geesoodka ah ee korantada ayaa ah in darawalka uu wado matoor isku mid ah oo rogi kara oo leh xajin birlab ah. Adigoo isticmaalaya saamaynta magnetka ee matoorka iyada oo loo marayo rotor motor iyo clutch, torsion deggan ayaa la soo saari karaa marka matoorku ku jiro xaalad taagan. Sidaa darteed, marka matoorku ku qalabaysan yahay hadda iyada oo loo marayo, waxay u istaagi kartaa meel kasta si deggan. Marka waalka si buuxda loo furo ama la xiro, xajinta magnetka ayaa kala go'a oo hagaajinta waa la joojiyaa. Digniinta ka imanaysa kontaroolaha korodhka ama saami qaybsiga ee darawalku waxa uu matoorku ka dhigi karaa mid u janjeera dhanka saacada ama ka soo horjeeda.
