2004-2005 660 Yamaha Rhino Factory Service Manual, Page 322Get this manual
FRONT AND REAR BRAKES EBS00431
ASSEMBLING THE FRONT BRAKE CALIPERS The following procedure applies to both of the front brake calipersWARNING
All internal brake components should be cleaned and lubricated with new brake fluid only before installationRecommended brake fluid DOT Replace the caliper piston seals and dust seal whenever brake caliper is disassembled