Ikhonkco elidibeneyo lokuhamba ngenqanawa lenziwe ngokuchanekileyo okukhulu. Icandelo ngalinye lenziwe ngokugqibeleleyo. Oku kuqinisekisa ukuba isantya sokuhamba se-excavator kunye nokusebenza kakuhle kokujikeleza kuhlangabezana nemigangatho ephezulu yomgangatho. Ubunzima bayo, amandla aphezulu, isakhiwo esilula kunye nexabiso elifanelekileyo zenza ixabiso elingakumbi kubathengi.