2003 Polaris Deep Snow Snowmobiles Service Manual, Page 292Get this manual
BRAKESFINAL DRIVE
Hayest Master Cylinder Removal Cont
6Remove master cylinder cover screws and coverPour out the fluid in the reservoir into containerUnscrew the brake fluid line from the master cylinder outlet using shop cloth to catch the remaining fluidDrain the fluid from the brake line into the aforementioned container and discard the fluid
Inspection
NOTE: Due to the critical nature of these parts and procedures, be sure you have thoroughly read and understand Hydraulic Brake Operation, page NO TAG1Thoroughly clean all brake parts with isopropyl alcohol and either wipe dry with clean lint free cloth or lightly blow dry with an air hoseExamine all parts carefully for signs of excessive wear, damage, or corrosionReplace any parts found to be damagedCheck park lever spring for breakage