??/??? ??? ??? ???? ?? ????? ??? ??? ????? ??. ??? ??? ????? ?? ??? ??? ? ?? ?? ???? ??? ????? ?? ??? ??? ?????? ???? ????? ?? ??? ?? ?? ??.At the same time when this enter pulley(sheave) moves, feeding output pulley(sheave) also moves and arrives closer towards the mounted output pulley which in turn shift the A part of v-shaped belt wrapped aroun