Lezi ze zezando ezinokwethenjeka zitholakala ezinhlanganweni ezahlukahlukene zokucushwa ezibenza bakwazi ukunamathiselwa kalula kubangemuva, ama-skid-stelectivealers kanye nama-backhoes adiniwe enjoloba. Izici zokusebenza kanye nezinketho zokukhulisa zenza izando zilungele ukulungiswa kwesiza, ukususwa kwesisekelo, ukulungiswa komgwaqo, ukuhamba ngezinyawo kanye namabhuloho abahamba ngezinyawo noma amabhuloho abahamba ngezinyawo.