Injini ndi makina apawiri mphamvu zamagetsi, ma hydraulic drive mokwanira. Gwiritsani ntchito mphamvu yamagetsi pogwira ntchito, kuchepetsa kutulutsa utsi ndi kuwononga phokoso, komanso kuchepetsa ndalama zomanga; mphamvu ya chassis itha kugwiritsidwa ntchito pazochitika zadzidzidzi, ndipo zochita zonse zitha kuyendetsedwa kuchokera pamagetsi a chassis. Kugwiritsa ntchito mwamphamvu, ntchito yabwino, kukonza kosavuta komanso chitetezo chokwanira.