2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 364Get this manual
BRAKES Pedal Removal and Installation
TROUBLESHOOTING
Brakes Squeal
Dirtycontaminated friction pads Improper alignment Worn disc
Touring Shown
Worn disc splines
Poor Brake Performance
Air in system Water in system (brake fluid contaminated) Caliperdisc misaligned 1Remove the RH footwell to gain access to the rear master cylinder2Remove the cotter key3Remove the washers, bushings, and tension spring4Reverse the steps for installation, use new cotter key during installation Caliper dirty or damaged Brake line damaged or lining ruptured Worn disc andor friction pads Incorrectly adjusted lever Incorrectly adjusted stationary pad Worn or damaged master cylinder or components Improper clearance between lever and switch