1. Lesi sakhiwo esokubhekisela kuphela.Ngeke isetshenziswe njengesisekelo sesakhiwo somsebenzi womphakathi.2. Idizayini ingase ilungiswe ngengxoxo ngayinye phakathi komthengi nomthengisi ngaphambi kokusayinwa kwenkontileka.3. Isiqondiso se-overhead conveyor sizolungiswa ukuze kuqinisekiswe ukuthi ukuxoshwa kutholakala lapho kunomoya owehlayo.
