Cooling System Bleeding Procedure - Polaris RANGER XP 900 2018-2019 Service Manual

ENGINE / COOLING / HVAC SYSTEM
8. Clean thermostat mating surfaces on the engine and
thermostat cover.
9. Install a new thermostat and seal into the cover and
install the cover onto engine.
10. Install the thermostat cover bolts and torque the bolts
to specification.
TORQUE
Thermostat Cover Bolts:
7 ± 1 lb-ft (10 ± 1 Nm)
11. Install coolant hose back on the thermostat cover
and securely tighten the hose clamp.
12. Fill cooling system and proceed to "Cooling System
Bleeding Procedure" provided in this chapter.

COOLING SYSTEM BLEEDING PROCEDURE

WARNING
Always wear safety glasses and proper shop clothing
when performing the procedures in this manual. Failing
to do so may lead to possible injury or death.
NOTICE
If the coolant level is LOW in the radiator, or if there are
leaks in the system, the coolant system will not draw
coolant from the reservoir tank.
1. Allow engine and cooling system to cool down.
CAUTION
Escaping steam can cause burns. Never remove the
pressure cap while the engine is warm or hot. Always
allow the engine to cool before removing the pressure
2. Remove the hood from the front cab.
3. Remove the recovery bottle cap
to the MAX line.
3.110
cap.
q
and fill the bottle
4. Remove the pressure cap
amount of Polaris Premium Antifreeze to the radiator
filler neck.
5. Tilt the rear cargo box to the raised position.
6. Remove the upper exhaust heat shield to access the
coolant bleed screw.
7. Open the bleed screw
escape. Close the bleed screw once a steady stream
of coolant begins to drain out.
8. Tighten the bleed screw to specification, top off
coolant and properly install the pressure cap.
Coolant Bleed Screw:
7 ± 1 lb-ft (10 ± 1 Nm)
9. Start the engine and allow it to idle until the coolant
fan has cycled two times.
10. Allow engine and cooling system to completely cool
down.
Escaping steam can cause burns. Never remove the
pressure cap while the engine is warm or hot. Always
allow the engine to cool before removing the pressure
11. Remove the pressure cap. Add the necessary
amount of Polaris Premium Antifreeze to the radiator
filler neck.
12. Open the bleed screw to allow any trapped air to
escape. Close the bleed screw once a steady stream
of coolant begins to drain out.
13. Tighten the bleed screw to specification, top off
coolant and properly install the pressure cap.
Coolant Bleed Screw:
7 ± 1 lb-ft (10 ± 1 Nm)
9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
w
and add the necessary
e
to allow any trapped air to
TORQUE
CAUTION
cap.
TORQUE
© Copyright Polaris Industries Inc.