Ezimbonini zokwakha nezobunjiniyela, ama-excavators ziphakathi kwezingcezu zemishini esindayo. Badlala indima ebalulekile ekunyakazeni komhlaba, ezimayini, ekwakhiweni kwemigwaqo, nasekubhidlizeni izakhiwo. Nokho, amanani aphezulu emishini emisha ngokuvamile iphakamisa umbuzo kosonkontileka nabanikazi bamabhizinisi: Ingabe imigodi esetshenzisiwe iyonga kakhulu?
Ezimweni eziningi, impendulo inguyebo. Ama-excavators asetshenzisiwe anganikeza inani eliyingqayizivele ezinkampanini ezifuna ukwandisa imikhumbi yazo noma ziqale amaphrojekthi amasha ngaphandle kokutshala izimali ezinkulu kusengaphambili. Imishini yokumba yesimanje yakhiwe ngezinto ezihlala isikhathi eside nobunjiniyela obuphambili, okusho ukuthi ngisho nemishini ephethwe ngaphambili ingakwazi ukusebenza kahle iminyaka eminingi lapho inakekelwa kahle.
Enye yezinzuzo eziyinhloko zokuthenga i-excavator esetshenzisiwe ukonga okubalulekile kwezindleko. Imishini ephethwe ngaphambilini ingashibhe ngo-40–60% kunemisha, okuvumela izinkampani ukuba zabe isabelomali sazo ngempumelelo. Lokhu kusebenza kahle kwezindleko kunenzuzo ikakhulukazi kosonkontileka abancane nabamaphakathi abadinga imishini ethembekile kodwa abafuna ukulawula izindleko zokusebenza.
Ukwengeza, izinga lokwehla kwenani lezisetshenziswa ezisindayo livame ukwehla ngemva kweminyaka embalwa yokuqala yokusetshenziswa. Lokhu kusho ukuthi i-excavator esetshenziswe kahle igcina inani layo lokuthengisa kabusha kangcono kunelisha, okulenza libe utshalomali oluhlakaniphile lwesikhathi eside. Abathengi ngokuvamile bangathola imishini yekhwalithi ephezulu, yamahora aphansi eletha ukusebenza okuhle kakhulu ngengxenye yezindleko.
Nokho, ukukhetha okulungile i-excavator esetshenzisiwe idinga ukuhlolwa ngokucophelela nokunaka imininingwane. Izici ezibalulekile zihlanganisa ukuhlola isimo senjini, isistimu ye-hydraulic, i-undercarriage, nomlando wesevisi. Ukusebenza nabathengisi abahloniphekile noma abathengisi abaqinisekisiwe kuqinisekisa ukuthi okokusebenza kugcinwe kahle futhi kuhlolelwe ukuphepha nokwethembeka.
Ngokombono wemvelo, ukuthenga ama-excavator asetshenzisiwe futhi kusekela ukusimama ngokwandisa ubude bempilo bemishini ekhona kanye nokunciphisa imfucuza. Kuyindlela evumelana nemvelo ehambisana nemizamo yomhlaba wonke yokunciphisa umthelela wezimboni nokukhuthaza ukusetshenziswa kwezinsiza ngendlela efanele.
Sengiphetha, ama-excavators asetshenzisiwe ayabiza kakhulu uma atholakala kubahlinzeki abathembekile futhi agcinwe ngendlela efanele. Banikeza ibhalansi efanelekile yokusebenza, ukwethembeka, kanye nokufinyeleleka, ukusiza amabhizinisi ukuthi afinyelele ukusebenza kahle okukhulu ngenkathi elawula ubungozi bezezimali. Ezinkampanini eziningi zokwakha, ukutshala imali kumshini wokumba osetshenzisiwe osezingeni eliphezulu kuseyisinqumo esihlakaniphile nesinamasu emakethe yanamuhla yokuncintisana.
