2004-2005 660 Yamaha Rhino Factory Service Manual, Page 185Get this manual
PRIMARY AND SECONDARY SHEAVES
REMOVING THE PRIMARY AND SECONDARY SHEAVES 1Loosen: secondary sheave nut primary sheave nut NOTE: Use the sheave holder to hold the primary sheave First, loosen the secondary sheave nut 1, then loosen the primary sheave nut 2Primary sheave holder PNYS-01880-A Sheave holder PN90890-01701