Iyi mashini yageragejwe kugira ngo imenye niba idapfa gucika no kudashwanyagurika. Nyuma yo kuzimya no gushyushya, pin irakomera hagati mu gihe cyo kuyikoresha, bigatuma igice cyo hanze gikomera bihagije kandi kigakomera mu gihe cyo kuyikoresha.
