Polaris 2008 Ranger RZR - Manual (Page 108)

105
MAINTENANCE
Brakes
The front and rear brakes are hydraulic disc type brakes activated by the
brake pedal. See page 45.
Always check brake pedal travel and the brake fluid reservoir level
before each use of the vehicle. When applied, the brake pedal should
feel firm. Any sponginess would indicate a possible fluid leak or low
brake fluid level, which must be corrected before riding. See page 106
for brake fluid information.
If you discover any irregularities in brake system operation, including
excessive pedal travel, contact your dealer for proper diagnosis and
repairs.
WARNING
Operating the vehicle with a spongy brake pedal can result in loss of braking,
which could cause an accident resulting in severe injury or death. Never
operate the vehicle with a spongy-feeling brake pedal.