Cooling System Bleeding - Polaris 850 PRO-RMK 155 2020 Manual

COOLING SYSTEM BLEEDING

The cooling system is a self bleeding system.
CAUTION
Cooling system under pressure. 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. Wear eye protection when servicing the
cooling system.
NOTICE
Pressure cap rated at 13 psi (0.9 bar). Use of a non-
standard pressure cap will not allow the recovery
system to function properly.
IMPORTANT
Perform this procedure in a well-ventilated area. Use
the recommended 50/50 Extended-Life Antifreeze.
1. Open the side panels and remove the hood.
2. Close the side panels.
3. Fill the coolant bottle to the COLD FILL mark.
4. Install the coolant bottle cap to the first lock. Do not
tighten to the fully seated position.
5. Lock the parking brake.
6. Start the engine and allow it to run at a fast idle for
several minutes, until the heat exchangers are warm
to the touch.
IMPORTANT
Keep the coolant level in the coolant bottle at or near
the COLD FILL mark when engine is running. The
engine may suck the coolant down quickly which my
require coolant to be added a few times to stabilize the
coolant level.
7. When all heat exchangers are warm to the touch,
stop the engine.
8. Allow the engine and cooling system to cool.
9. Fill the coolant bottle to the COLD FILL mark.
Reinstall the bottle cap securely.
10. Open the side panels and reinstall the hood. Close
the side panels.
9850060 R02 - 2020-2021 850 AXYS™ Long Track Snowmobile Service Manual
© Copyright Polaris Inc.
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