2004-2005 660 Yamaha Rhino Factory Service Manual, Page 321Get this manual
FRONT AND REAR BRAKES EB702040
CHECKING THE FRONT AND REAR BRAKE CALIPERS Recommended brake component replacement schedule: Brake pads Piston seals, dust seals Brake hoses Brake fluid WARNING All internal brake components should be cleaned in new brake fluid onlyDo not use solvents as they will cause seals to swell and distortAs required Every two years Every two years Replace when brakes are disassembled