Isanti yechungechunge le-SPX kunye ne-gravelone yomngxunya isetyenziselwa ukususa ilitye le-hydraulic DE emva kokufika kumzi-mveliso wombona. Umsebenzi ophambili kukususa ukungcola okunje ngamatye kunye neentsimbi ezixutywe kumbona ngaphambi kokophulwa, ukwenzela ukukhusela ngokukuko izixhobo ezisezantsi. .