Polaris Trail Boss 9921784 - Manual (Page 34)

31
FEATURES AND CONTROLS
Brake Fluid
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.
Always maintain brake fluid at the recommended level. Do not overfill.
If the fluid level is low add DOT 4 brake fluid only. See page 103 for the
part numbers of Polaris products.
Under normal operation, the diaphragm extends into the reservoir as
fluid level drops. If the fluid level is low and the diaphragm is not
extended, a leak is likely and the diaphragm should be replaced. To
ensure proper diaphragm operation, always fill the reservoir as needed
whenever the cover is loosened or removed. Do not overfill.
WARNING