Iningi lezinhlelo zokusebenza zezimoto zizohlonyiswa ngemishini yokubamba i-overload, okungukuthi, lapho i-motor current idlula inani elibekiwe ngenxa yokugcwala ngokweqile, umyalo wokubamba uzosetshenziswa ukuze kusetshenziswe ukuvikela.
Uma injini ibhajwe ngokomshini, noma kukhona amaphutha kagesi afana nomhlabathi, isigaba-to-isigaba, kanye nokujika-kujika, umyalo wokuvikela nawo uzosebenza ngempumelelo ngenxa yokwanda kwamandla. Kodwa-ke, uma okwamanje kungakhuphuki enanini lesilungiselelo sokuvikela, idivayisi yokuvikela ngeke isebenzise umyalo ohambisanayo.