Liquid Cooling System - Arctic Cat XC 450i 2012 Service Manual

FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
 NOTE: If the oil pressure is lower than specified,
check for low oil level or defective oil pump.
 NOTE: If the oil pressure is higher than specified,
check for clogged oil passage, clogged oil filter, or
improper installation of the oil filter.

Liquid Cooling System

When filling the cooling system, use premixed Arctic Cat
Antifreeze. While the cooling system is being filled, air
pockets may develop; therefore, run the engine for five
minutes after the initial fill, shut the engine off, and then
fill the cooling system to the bottom of the stand pipe in
the radiator neck.
CAUTION
After operating the ATV for the initial 5-10 minutes, stop
the engine, allow the engine to cool down, and check
the coolant level. Add coolant as necessary.
RADIATOR
Removing
1. Drain the coolant at the engine.
2. Remove the radiator/electrical access panel and front
fender panel (see Steering/Frame).
3. Remove the upper and lower coolant hoses; then
remove the fill hose and air bleed hose.
4. Remove the cap screws securing the radiator to the
frame.
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5. Disconnect the fan wiring from the main wiring har-
ness; then remove the radiator/fan assembly and
account for the grommets and collars.
6. Remove the fan/fan shroud assembly from the radia-
tor.
Cleaning and Inspecting
 NOTE: Whenever a part is worn excessively, cracked,
or damaged in any way, replacement is necessary.
1. Flush the radiator with water to remove any contami-
nants.
2. Inspect the radiator for leaks and damage.
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3. Inspect all hoses for cracks and deterioration.
4. Inspect all fasteners and grommets for damage or
wear.
Installing
1. Position the fan/fan shroud assembly on the radiator;
then secure with existing hardware.
2. Place the radiator with grommets and collars into
position on the frame; then install the cap screws.
Tighten securely.
3. Install the upper and lower coolant hoses, fill hose,
and air bleed hose; then secure with hose clamps.
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4. Install the radiator/electrical access panel; then
install the front fender panel (see Steering/Frame).
5. Fill the cooling system with the recommended
amount of antifreeze. Check for leakage.
6. Connect the fan wiring to the main wiring harness.
THERMOSTAT
Removing
1. Drain approximately one quart of coolant from the
cooling system.
2. Remove the two cap screws securing the thermostat
housing to the mounting bracket. Remove the ther-
mostat housing cover and account for an O-ring and
a thermostat.
Inspecting
 NOTE: Whenever a part is worn excessively, cracked,
or damaged in any way, replacement is necessary.
Manual
Table of Contents
AF734D
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