Polaris Sportsman Touring 570 Owner's Manual For Maintenance And Safety page 32

FEATURES AND CONTROLS
Master Cylinder/Brake Fluid
WARNING
An over-full master cylinder may cause brake drag or brake lock-up, which could
result in an accident. Maintain brake fluid at the recommended level. Do not
overfill.
Never store or use a partial bottle of brake fluid. Brake fluid is hygroscopic,
meaning it rapidly absorbs moisture from the air. The moisture causes the
boiling temperature of the brake fluid to drop, which can lead to early brake fade
and the possibility of brake failure, which could result in an accident. After
opening a bottle of brake fluid, always discard any unused portion.
Check the brake fluid in the master
cylinder before each ride.
1. Position the ATV on a level
surface.
2. Position the handlebars so the
master cylinder is level.
3. View the brake fluid level
through the indicator window
on the top of the master
cylinder. The eye will appear
dark when the fluid level is
full. When fluid is low, the eye
will be clear.
4. If the fluid level is low add DOT 4 brake fluid only. Do not overfill.
30
Indicator
Master
Window
Cylinder