Thermostat Replacement - Polaris RANGER XP 900 2018-2019 Service Manual

10. Remove the four bolts that retain the fan shroud to
the radiator.
11. Lift up on the radiator/fan assembly to separate the
fan shroud from the radiator.
12. Carefully remove the radiator through the flexible
portion of the hood liner. Take care not to damage
the radiator cooling fins.
13. Service the radiator as needed.
14. Reverse this procedure for installation. Upon
installation, be sure the lower radiator mounts are
placed properly in the frame support.
15. After reassembly, fill the radiator and recovery bottle
with coolant. Bleed the cooling system. Refer to the
"Cooling System Bleeding
3.110.
9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
© Copyright Polaris Industries Inc.

THERMOSTAT REPLACEMENT

1. Remove the hood from the front cab.
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 pressure cap to relieve any system
pressure.
3. Drain coolant to a level below the thermostat
housing. Refer to "Radiator Removal / Coolant
Drain"page 3.108 procedure.
4. Tilt the rear cargo box to the raised position. Remove
upper cargo box shock clip and pin. Allow cargo box
to rest fully open.
5. Loosen the hose clamp
hose
6. Remove the two bolts
cover
Procedure"page
7. Remove the thermostat cover
thermostat
Thermostat has a pop-off relief to allow the bypass
ENGINE / COOLING / HVAC SYSTEM
WARNING
cap.
q
and remove the coolant
w
from the thermostat cover
r
that retain the thermostat
e
to the engine.
y
from the engine.
NOTICE
system to operate until thermostat opens.
3
e
.
e t
, seal and
3.109