Itsheyini yokukrwela yenziwe kusetyenziswa iindlela zokuphosa kunye noomatshini, ukuqinisekisa ukuchaneka okuchanekileyo kobukhulu. Kukho inxaxheba epheleleyo kwicandelo ngalinye. Ukuqinisekisa ukuba isantya sokuhamba se-excavator kunye nokusebenza kokujikeleza kuhlangabezana nemigangatho ephezulu, kubalulekile ukunamathela kule nkqubo ilandelayo. Ulwakhiwo lwayo olukhaphukhaphu kodwa oluqinileyo, uyilo oluthe ngqo kunye nexabiso elikhuphisanayo lizisa ixabiso elongezelelekileyo kubathengi.