1. Ezubere maka elu ududo / crane/robot
2. Crawler undercarriage nwere ike inye ọrụ dị ka nkwado, nkwụsi ike, traction, propulsion, mgbanwe na mgbanwe, na-ekwe ka ududo na-eme njem ma na-arụ ọrụ na gburugburu ebe ọrụ dị mgbagwoju anya.
3. Nhazi chassis a bụ iji melite mmegharị, nchekwa na arụmọrụ nke akụrụngwa na-ebelata mmetụta na ala.