Kubaphathi bemigodi ababhekene nobunzima obungapheli be-basalt yentaba-mlilo, ukwehluleka kwemishini akuyona inketho—kuyizindleko zansuku zonke. Njengefektri ezinikele kuphela ekubunjweni nasekukhiqizweni kwemishini yokubhoboza amatshe, sakhe i-I-YT29A Leg Rock Drillngqo kule mpi. Lo mshini uwumshini wokubhoboza oqinile, osebenza ngomoya owenzelwe ukubhoboza uqonde phezulu noma uthambekele ekwakhekeni kwamadwala aqinile aphakathi nendawo kuya kwaqinile. Uhlanganisa umzimba olula kodwa oqinile nowethembekileumlenze womoyaukuze kusekelwe futhi kuphakelwe, okuvumela umqhubi oyedwa ukuthi aphathe ukusetha nokubhoboza kahle. Ukusebenza kulula: xhuma ku-compressor yomoya yezimboni ejwayelekile, uqinise umshini ebusweni bedwala usebenzisa umlenze onwebekayo, bese ubamba i-throttle ukuze uqale isenzo esiqondile, sokubhoboza esiqhubela phambili i-drill bit.

Ezindaweni zokumba i-basalt, lapho isimo sokuklwebheka kwedwala sisheshisa ukuguguleka, umehlukoI-YT29AIzinto ezikhiqizwayo ziyalinganiswa. Ngaphambi kokusetshenziswa kwayo, imisebenzi yayivame ukubhekana nokumiswa okuvamile. Izinsimbi zokubhoboza zazizophela ngokushesha, kanti izingxenye zangaphakathi ezifana nama-piston nama-cylinder emishinini emincane zazizonqotshwa ukucindezeleka okuphezulu okuqhubekayo, okuholela ekuhlulekeni kwangaphambi kwesikhathi, amafasitela okulungisa anwetshiwe, kanye nokukhishwa kwansuku zonke okungalindelekile. Selokhu kwahlanganiswa i-YT29A, umehluko ucacile. Ama-quarry abika ukwanda okukhulu ngezikhathi zesevisi. Izingxenye zangaphakathi ze-drill eziqiniswe ngokukhethekile—ezakhiwe futhi zaphathwa ukuze ziqine kakhulu—zimelana ne-basalt ejezisayo, kunciphisa kakhulu imvamisa yokuphuka. Lokhu kuqina kuhumusha ngokuqondile impilo ende ye-bit kanye nokufakwa esikhundleni okumbalwa. Abasebenzi manje bahlangabezana nokuphazamiseka okuncane okungahleliwe, okugcina ijubane lokubhoboza elihambisanayo. Umphumela uwukuthuthuka okubonakalayo kokubhoboza kwansuku zonke, ukwehla kwezindleko zokusebenza ngehora ngenxa yokusetshenziswa kwezingxenye eziphansi, futhi ekugcineni, ishejuli yokukhiqiza ebikezelwayo nenenzuzo. Lokhu akuyona nje ukuthuthukiswa kwamathuluzi; kungukushintsha kokusebenza okuya ekuthembekeni kwenye yezindawo eziyinselele kakhulu zezimayini.

Ingqikithi yalokhu kusebenza isekelwe kufilosofi yokuklama ngamabomu egxile ekuqineni kunokuchazwa nje. Iyunithi ngayinye ye-YT29A ifaka uhlelo lwe-valve oluqinisiwe oluqinisekisa ukulethwa kwamandla okuqhubekayo futhi luvikele ekungcoleni okuqhutshwa umoya, okuyinkinga evamile ezimweni ze-quarry ezinothuli. Isilinda kanye ne-piston kwenziwa ngomshini kusuka kuma-alloy aphezulu futhi kudlula inqubo yokwelashwa kokushisa enezigaba eziningi, okudala ubulukhuni bomphezulu obuncane obumelana ngokuqinile nokuguguleka okubangelwa uthuli lwe-basalt. Ngaphezu kwalokho, injini yomoya kanye nendlela yokujikeleza kugcinwe endaweni evaliwe, kunciphisa kakhulu ukungena kwezinhlayiya ezivame ukugaya izingxenye ezihambayo. Lokhu kugxila kobunjiniyela kunciphisa ukungqubuzana kwangaphakathi, kuqinisekisa ukuthi amandla omshini adluliselwa kahle ku-drill bit kunokuba achithwe njengokuguga kwezingxenye zangaphakathi. Kumqhubi, lokhu kusho ukuthi amandla okushaya ahlala enamandla kulo lonke ushintsho, okwenza amazinga okungena asheshe ngisho noma izimo zamatshe zihluka. Umklamo wangaphandle olula nawo udlala indima ebalulekile; ngezimbobo ezimbalwa zangaphandle kanye nesimo esihlelekile, i-drill ayithambekele kakhulu ekubambekeni nasekulimazeni ngesikhathi sokunyakaza emabhentshini e-quarry aqinile. Lokhu kuhlanganiswa kwamandla angaphakathi kanye nokusebenza kwangaphandle kuqinisekisa ukuthi i-YT29A ayigcini nje ngokusinda endaweni ye-basalt—iyayibusa njalo, ishintshashintsha ngemva kokushintsha. Umphumela wokugcina umshini oguqula isikhungo sezindleko ezigugile sibe imodeli yokukhiqiza okubikezelwayo, okufakazela ukuthi ekumbeni okukhulu, imishini ekhethekile efanele iyisivikelo esiphezulu sokusebenza kahle.