2.28
MAINTENANCE
9924096 - 2013 RANGER RZR XP 900 / RZR XP 4 900 Service Manual
© Copyright 2012 Polaris Sales Inc.
COOLING SYSTEM
Cooling System Overview
The engine coolant level is controlled, or maintained, by
the recovery system. The recovery system components
are the recovery bottle, radiator filler neck, radiator
pressure cap and connecting hose.
As coolant operating temperature increases, the
expanding (heated) excess coolant is forced out of the
radiator past the pressure cap and into the recovery bottle.
As engine coolant temperature decreases the contracting
(cooled) coolant is drawn back up from the tank past the
pressure cap and into the radiator.
NOTE: Some coolant level drop on new machines is
normal as the system is purging itself of trapped air.
Observe coolant levels often during break-in period.
NOTE: Overheating of engine could occur if air is
not fully purged from system.
IMPORTANT: Polaris Premium 60/40 Antifreeze is
premixed and ready to use. Do not dilute with water.
Coolant Strength
Test the strength of the coolant using an antifreeze
hydrometer.
• A 50/50 or 60/40 mixture of antifreeze and distilled
water will provide the optimum cooling, corrosion
protection, and antifreeze protection.
• Do not use tap water, straight antifreeze or straight
water in the system. Tap water contains minerals
and impurities which build up in the system.
• Straight water or antifreeze may cause the system
to freeze, corrode, or overheat.
Coolant Level Inspection
The pressure cap (A) and recovery bottle (B) are located
under the front hood of the vehicle. The coolant level must
be maintained between the minimum and maximum levels
indicated on the recovery bottle.
With the engine at operating temperature, the coolant
level should be between the upper and lower marks on the
coolant recovery bottle. If not, perform the following
procedure:
1. Position the vehicle on a level surface.
2. Remove the front hood.
3. View the coolant level in the recovery bottle.
4. If the coolant level is below the MIN line, inspect the
coolant level in the radiator.
NOTE: If overheating is evident, allow system to
cool completely and check coolant level in the
radiator and inspect for signs of trapped air in
system.
5. Remove the pressure cap. Using a funnel, add
coolant to the top of the filler neck.
6. Reinstall the pressure cap.
NOTE: Use of a non-standard pressure cap will not
allow the recovery system to function properly.
Recommended Coolant:
Polaris Premium Pre-Mixed Antifreeze
(PN 2871534) (Quart)
(PN 2871323) (Gallon)
Never remove the pressure cap when the
engine is warm or hot. Escaping steam can
cause severe burns. The engine must be cool
before removing the pressure cap.
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