2016 Polaris 800 Rush PRO-S Owners Manual - Page 118

MAINTENANCE Cooling System Flushing the Cooling System To ensure that the coolant maintains its ability to protect the engine, drain the system completely every five (5) years and add a fresh mixture of antifreeze and distilled water. This service must be performed when the engine is cold. Ask your POLARIS dealer to check the coolant when he performs the fall tune-up on your snowmobile. Bleeding the Cooling System CAUTION! Steam and hot liquids will cause burns to your skin. Never bleed the cooling system or remove the pressure cap when the engine is warm or hot. Use of a non-standard pressure cap will not allow the recovery system to function properly. If the pressure cap needs replacement, contact your dealer for the correct part. NOTICE: Severe engine damage may occur if the cooling system becomes restricted or plugged or contains trapped air pockets. Perform this procedure in a well-ventilated area. Use the recommended coolant. See page 115. 1. Open the side panels and remove the hood. 2. Close the side panels. WARNING! Never operate a snowmobile with the side panels open or removed. 3. Position the snowmobile with the right ski and control arms elevated at a 45-degree angle. 4. Fill the coolant bottle to the COLD FILL mark. 5. Using an 8 mm wrench, loosen the air bleed screw located on the top of the coolant outlet elbow. Use a shop towel to catch any coolant that leaks from the bleeder. Tighten the screw after a steady stream of Bleed Screw coolant flows from the bleeder. 116