2010 Polaris Sportsman 850 Service Manual, Page 94Get this manual
COOLING SYSTEM Water Pump Mechanical Seal Replacement (Cont 8Protect water pump cover gasket surface and turn cover overDrive mechanical seal out from stator side of cover11Turn cover over and press the new mechanical seal squarely into housing using seal installer PA-44995-A12Install impellerTorque bolt to 10 lb-ft(13.5 Nm)13Rotate impeller and check for smooth rotation
Water Pump ShaftBearing Replacement
1Press new shaftbearing assembly from kit into cover from stator side as shown, using the recessed end of Bearing and Coupler Press Tool PA-49378Clean housing thoroughlyPA-49378