ʻO ka ʻōnaehana hele wāwae excavator ka mea nui i haku ʻia me ka track frame, hope drive assy travel me ka pahu pahu, sprocket, track roller, idler, track cylinder assembly, carrier roller, track shoe assembly, rail clamp and so on.
Ke hele ka excavator, ʻo kēlā me kēia huila huila ma ke ala, ʻo ke kaʻa hele wāwae e hoʻokele i ka sprocket, a hoʻohuli ka sprocket i ka pine track e ʻike i ka hele wāwae.