2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 357Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 357

BRAKES 8Remove the slide bolt bushingsInspect the bushings and O-rings and replace if necessarycorrosion, or galling and
replace if necessary Assembly 1Install new O-rings in the slide bolt bushing holesBe sure O-ring and seal grooves are thoroughly
cleaned of all residue, or piston may bind in boreApply brake fluid to piston seals and install carefully with twisting motion
to ease assembly until fully seated .94in(23.88) mm) 1.5 in(38.1 mm) = In mmRear Caliper Piston Bore I.DInner Bore Service