1999-2002 TRX400EX Fourtrax Service Manual, Page 209Get this manual
HYDRAULIC DISC BRAKE Install the pad spring as shownIf the pin boots are hard or deteriorated, replace them with new onesInstall the bracket pin boot into the caliper body and pack silicone grease to the inside of the bootApply silicone grease to the grease groove in the slide pinInstall the slide pin boot and the slide pin so the boot ribs properly align with the grooves in the caliper body and slide pinSLIDE PIN Install the caliper bracket over the caliper body with the spring washer (between the slide pin and bracket) and thread the slide pin into the bracket, being careful notto damagethe pin bootMake sure that the boots are seated securely into the pin groovesBRACKET BOOTS