2010 Polaris Sportsman 850 Service Manual, Page 32Get this manual
MAINTENANCE Rear Gearcase Lubrication
NOTE: It is important to follow the rear gearcase maintenance intervals described in the Periodic Maintenance ChartRegular fluid level inspections should be performed as wellThe rear gearcase fluid level should be checked and changed in accordance with the maintenance schedule Be sure vehicle is positioned on level surface when checking or changing the fluid Check vent hose to be sure it is routed properly and unobstructedRear Gearcase Fluid Level Check: The fill plug is located on the right side of the rear gearcaseMaintain the fluid level even with the bottom threads of the fill plug hole12Position the vehicle on level surfaceRemove the fill plug and check the fluid level4Fill Plug
10-14 ftlbs(14-19 Nm) Gearcase fluid flush with the bottom of thread area
Remove the fill plug (refer to "Rear Gearcase Fluid Level Check")Place drain pan under the rear gearcase drain plugRemove the drain plug and allow the fluid to drain completely
Fill Plug