2007-2009 Honda TRX300EX TRX300X service manual, Page 299Get this manual
HYDRAULIC DISC BRAKE pad spring bracket pin boot caliper slide pin (release each boot lib from the pin grooves) slide pin boots caliper piston (by pushing the piston rod)
BRACKET PIN BOOT
PAD SPRING
SLIDE PIN BOOTS
Be careful not to damage the piston sliding surface
SLIDE PIN
Push the dust and piston seals in and lift them out
Remove the a-ringClean the seal grooves, caliper cylinder and piston with clean brake fluid