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9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
3.23
9. Remove the two upper radiator retaining bolts
e
.
10. Disconnect the fan motor and remove the radiator
from the vehicle. Take care not to damage the
cooling fins.
11. Reverse procedure for installation.
THERMOSTAT REPLACEMENT
1. Open the hood.
WARNING
Allow the engine to cool before servicing. The cooling
system is under pressure and serious burns may result.
2. Remove the pressure cap to relieve any system
pressure (see “Pressure Cap Test”).
3. Drain coolant to a level below the thermostat
housing.
4. Tilt the cargo box.
5. Remove the two bolts
q
retaining the thermostat
cover.
6. Lift the cover from the engine and remove the
thermostat.
7. Reverse this procedure for installation. Replace
thermostat seal if worn or damaged. Torque
thermostat cover bolts to specification.
TORQUE
Thermostat Cover Bolts:
8 ft-lbs (10 Nm)
8. Be sure to properly fill and bleed cooling system as
outlined in this chapter.
ENGINE / COOLING SYSTEM
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