Sisitemu yo kugenda ya excavator igizwe ahanini nurwego rwumuhanda, urugendo rwa nyuma assy ingendo hamwe na garebox, spocket, inzira yimodoka, idakora, iteraniro rya silinderi, ikinyabiziga gitwara abagenzi, guteranya inkweto, umuhanda wa gari ya moshi nibindi.
Iyo moteri ikora, buri mubiri wikiziga kizunguruka munzira, moteri igenda itwara isuka, hanyuma isuka ihindura pin kugirango ibone kugenda.