Polaris RMK Shift Owner's Manual page 91

MAINTENANCE
Cooling System
Bleeding the Cooling System
Steam and hot liquids will cause serious 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.
If coolant flow becomes restricted or plugged, coolant loss, air lock or engine
damage may result. Most cooling systems are equipped with a filter that
should be periodically inspected or replaced.
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WARNING
CAUTION