2010 Polaris Sportsman 850 Service Manual, Page 91Get this manual
COOLING SYSTEM 11Lift up on the front bumper and lift the radiator upward to allow the lower grommets to clear the frame support holesRemove the radiator from the vehicle out the right-hand side through the wheel wellTake care not to damage the cooling fins during removalRadiator Installation 1Reverse procedure for installationWhen installing the recovery bottle, insert the upper portion of the bottle into the shroud first, then push the lower tab on the bottle into the shroud until it snaps into placeAfter installation and reassembly, remove the pressure cap and fill the radiator and recovery bottle with coolantRefer to the "Cooling System Bleeding Procedure" in this chapter