2010 Polaris Sportsman 850 Service Manual, Page 19Get this manual
MAINTENANCE Maintenance Quick Reference, ContinuedIII# Item Front Gearcase ADC Reservoir Front Gearcase Rear Gearcase Brake Fluid Lube RecPolaris Demand Drive Plus Polaris Demand Drive Plus Polaris ATV Angle Drive Fluid (ADF) Polaris DOT Brake Fluid Method Maintain fluid level in ADC Reservoir to indicated level Add fluid until it is visible at the fill hole threads Add fluid until it is visible at the fill hole threads Maintain fluid level in both master cylinder reservoirs to indicated levels Frequency Refer to intervals described in the Periodic Maintenance Chart Check level every 25 hours; change fluid yearly or 1000 miCheck level every 25 hours; change fluid yearly Check level during pre-ride inspection; change fluid every two years