I-1.I-design yanamhlanje ye-cut-edge, ibukeka kakuhle kwaye ilula ukuyisebenzisa imbonakalo yonke, eyenziwe ngamacandelo athembekileyo, ikhuselo elipheleleyo linokukhusela inkqubo ye-counterweight kwimihla ngemihla yokugqoka kunye nokukrazula.
I-2.Amanyathelo ohlengahlengiso olula anokuqinisekisa ukuba abasebenzisi banokwenza uhlengahlengiso olukhawulezayo nolona lusebenzayo.
I-3.Isibonakaliso esibonakalayo sinokubonisa indawo yokulungelelanisa kunye nesimo esichanekileyo sokumisa, kunye nokunciphisa izinto ezinobungozi.