Ukuthobela izinga lakamuva le-IV likazwelonke, sebenzisa ubuchwepheshe obuthuthukisiwe, unciphise ukungcola, futhi unciphise ukungcoliswa kwemvelo.
Amasethi ejeneretha aqondene nechweba afakwe amasistimu okuqapha ahlakaniphile, Ukubuka kwesikhathi sangempela sendawo kanye nesimo sokusebenza sesethi yejeneretha., okuvumela ukuqapha okukude nokulawula ukusebenza kwemishini kanye nezidingo zokunakekelwa.
Lawa masethi amajeneretha enzelwe ukuhlangabezana nezidingo ezithile zamandla okusebenza kwechweba, kucatshangelwa izici ezifana nokuguquguquka komthwalo, ukuqina kwamandla kagesi, nokucatshangelwa kwemvelo.
Amasethi ejeneretha aqondene nechweba aklanyelwe ukuhlangabezana nemithetho yakamuva yezemvelo, ehlanganisa izici ezifana namazinga aphansi akhishwayo kanye nokusetshenziswa kahle kukaphethiloli.
Amachweba akhiqiza ugesi ayaziqhayisa ngokusebenza kahle kwamandla, anciphisa ukusetshenziswa kukaphethiloli kanye nezindleko zokusebenza.
(1) Amasethi ejeneretha echwebeni asetshenziswa kakhulu ezinhlelweni ezahlukene zasolwandle ukuze ahlinzeke ngomthombo wamandla onokwethenjelwa wokusebenza kwechweba. Lawa majeneretha aklanyelwe ukuphatha izidingo ezithile zamachweba ngendlela efanele.
(2) Enye indlela eyinhloko yokusetshenziswa kwamasethi ejeneretha echwebeni isekumiseni nasekuthululeni imikhumbi. Banika amandla ama-cranes, amasistimu okuthutha, nezinye izinto zokusebenza ezidingekayo ukuze kudluliswe kahle impahla isuka emikhunjini iye ezikhungweni zemikhumbi. Lawa majeneretha aqinisekisa ukutholakala kukagesi okungaphazamiseki ukuze kugcinwe ukusebenza kahle.
(3) Amasethi akhiqiza amachweba nawo abalulekile ekuhlinzekeni amandla ezikhungweni zemikhumbi nengqalasizinda efana nezibani, izinhlelo zokuphepha, namanethiwekhi okuxhumana. Basiza ukugcina indawo yokusebenza ephephile nekhiqizayo yabasebenzi basechwebeni.
(4) Kafushane, amasethi akhiqiza amachweba abalulekile ezinhlelweni eziningi, okuhlanganisa ukumisa umkhumbi, ukuphatha impahla, ukunakekelwa kwendawo, nokulawulwa kwezinga lokushisa, okuwenza abe yimpahla ebalulekile ekusebenzeni kahle kwezikhumulo.