Iiradiyetha zemizi-mveliso zidla ngokufumaneka kwiilocomotives.Ii-Locomotives zivelisa ubushushu obuninzi ngenxa yeenjini zazo kunye namanye amacandelo oomatshini.Iiradiator zisetyenziselwa ukutshabalalisa obu bushushu kwaye zithintele i-locomotive ekutshiseni.Isixokelelwano seradiyetha kwi-locomotive ngokuqhelekileyo siquka uthotho lwamaphiko okupholisa okanye iityhubhu apho isisipholisi sijikeleza khona, sihambisa ubushushu kude ne-injini kwaye bubukhuphele emoyeni ojikelezileyo.Oku kunceda ukugcina amaqondo okushisa asebenzayo kunye nokuqinisekisa ukusebenza kakuhle kwesitimela.