2006 Honda TRX680 Rincon Factory Service Manual, Page 419Get this manual
BRAKE SYSTEM Rotate the caliper piston clockwise using the special tool or equivalent to retract it and align the piston groove with the index mark on the caliper bodyTOOL: Lock nut wrench, 20 24 mm 07716-0020100 INDEX MARK
GROOVE Install the caliper body over the pads and caliper BRACKET PIN BOLT bracket, aligning the groove in the piston with the pin on the padInstall the bracket pin bolt and bracket pin retaining bolt, and tighten themTORQUE: Bracket pin bolt: 32 (3.3 kgf m, 24 Ibf ft) Retaining bolt: 23 (2.3 kgf m, 17 Ibf ft) Install the right rear wheel (page 16-6)Operate the brake pedal to seat the caliper piston against the pad