Hannun Shift (wanda kuma aka sani da hannun watsawa) wani muhimmin sashi ne na tsarin watsa mota, galibi ana amfani da shi don sarrafa motsin motar. A cikin na'ura na gargajiya na gargajiya, madaidaicin motsi yana watsa aikin motsa jiki zuwa na'urar kayan aiki a cikin watsawa ta hanyar haɗin kai, don haka samun nasarar sauya kayan aiki daban-daban. Ka'idar rikewar motsi ta ƙunshi abubuwa masu zuwa:
1. Haɗin joystick da lever motsi
2. Yi aiki da tsarin watsawa
3. Sarrafa tsarin kayan aiki