1.Idizayini yanamuhla esezingeni eliphezulu, ebukeka kahle futhi esebenziseka kalula, eyenziwe ngezinto ezinokwethenjelwa, isihlangu esigcwele singavikela uhlelo lwe-counterweight ekugqokeni kwansuku zonke.
2.Izinyathelo zokulungisa ezenziwe lula zingaqinisekisa ukuthi abasebenzisi bangenza ukulungisa okushesha kakhulu nokuphumelela kakhulu.
3.Uphawu olubonakalayo lungakhombisa indawo yokulungisa kanye nendawo yokuhlela efanele, futhi kunciphise izici eziyingozi.