Aho kugirango umukandara utwara umukandara, twateje imbere icyuma kugirango tujye muri shaft-drive muburyo bukomeye kandi burambye kubera gutakaza ibikoresho no kubora umukandara wambere.Iyindi nyungu nuko twakuyeho amahirwe yo "kugwa" umukandara utakaza umwanya munini kuri wewe ndetse nuwasana imashini.Imbaraga zikomeye nizindi nyungu zumushoferi-shaft, uwimura arashobora kohereza ingufu muburyo bunoze cyane kuko umukandara utwarwa numukandara akenshi utakaza ingufu zokuburana cyangwa kunyerera.