1. Imishini yokubuyisela emuva emuva yamukele amashafu amathathu ukuze ilawule ukuhlehliswa kwendawo futhi ifanele ubukhulu obuhlukahlukene bomgogodla wephepha. Ukushuba kokubuyisela emuva kungalungiswa ngokucindezela umqulu ophezulu.
2. Isilungiselelo sobude obuzenzakalelayo bemishini yokubuyisela emuva: ikhawunta enezinyathelo ezimbili inikeza isilawuli esinembile sobude bokubuyisela emuva.
3. Uma ubude besethi bufinyelelwe futhi kwathathwa i-motoradopted khona-ke ama-shaft azoshintsha ngokushesha nangokuzenzakalelayo ukuze kuqinisekiswe ukusebenza okulula nokusebenza kahle.
4. Isilawuli esihlelekayo semishini yokubuyisela emuva emuva: isilawuli esihlelekayo sokusebenza okuphezulu sinikeza ukulawula okulula kwawo wonke umsebenzi wokubuyisela emuva.