2009-2012 Honda MUV700 Big Red Service Manual, Page 444Get this manual
BRAKE SYSTEM Coat new O-ring with silicone grease and install it into the sleeve piston grooveApply of silicone grease to new cup and instal it onto the adjusting boltInstall the adjusting bolt into the sleeve piston Apply 0.15 of silicone grease to the ends of the rod and install it into the sleeve piston Install the piston assembly into the caliper cylinder by aligning the pins of the piston with the holes in the caliperInstall bearing, spacer, adjusting spring and spring guide onto the adjusting bolt" GUIDE
Be cena'n [he snap ring '5 firmly seated In rhe groove
BEARING SPRING
eICUP O-R'NG