2003 Polaris Universal ATV Owners Manual - Page 106

MAINTENANCE AND LUBRICATION Adjustments Front Brake WARNING After opening a bottle of brake fluid, always discard any unused portion. Never store or use a partial bottle. 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 accident or severe injury. The front brakes are hydraulic disc brakes. They're activated by moving the brake lever toward the handlebar. These brakes are self-adjusting. The following checks are recommended to keep the brake system in good operating condition. Check more often if brakes are used heavily under normal operation. 1. Always keep brake fluid at an adequate level (see page 39). NOTE: Under normal functioning 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. Always fill the reservoir as needed whenever the cover is loosened or removed to ensure proper diaphragm operation. Use Polaris DOT 3 brake fluid (see page 141). 2. Check the brake system for fluid leaks. 3. Check the brakes for excessive travel or spongy feel. 4. Check the friction pads for wear, damage and looseness. 5. Check the security and surface condition of the disc. NOTE: Pads should be changed when 3/64″ (.1 cm) worn to 3/64″ (.1 cm), or about the thickness of a U.S. dime. 104