2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 44Get this manual
MAINTENANCE the machine is one foot higher than the rearSet the hand brake and block the wheelsMake sure the machine is in neutral and repeat Steps and 3SEE WARNING ABOVE 6Repeat Steps through until no more particles are expelled when the engine is revved7Stop the engine and allow the arrestor to cool8Reinstall the clean out plugs
BRAKE PAD INSPECTION
BRAKE SYSTEM INSPECTION
The following checks are recommended to keep the brake system in good operating conditionService life of brake system components depends on operating conditionsInspect brakes in accordance with the maintenance schedule and before each rideG Keep fluid level in the master cylinder reservoir to the indicated level inside reservoirUse Polaris DOT Brake Fluid (PN 2870990)Parking Brake Lock
Minimum Thickness
Pads should be changed when friction material is worn to 364 (.1 cm), or about the thickness of dime