Hoses/Thermostat; Fan; Water Pump - Arctic Cat 700 Diesel ATV 2007 Service Manual

7. Connect the fan wiring to the main wiring harness.

Hoses/Thermostat

REMOVING
1. Drain approximately two quarts of coolant from
the cooling system.
2. Remove the two cap screws securing the thermo-
stat cover housing to the thermostat housing.
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.
1. Inspect the thermostat for corrosion, wear, or
spring damage.
2. Using the following procedure, inspect the ther-
mostat for proper operation.
A. Suspend the thermostat in a container filled
with water.
B. Heat the water and monitor the temperature
with a thermometer.
C. The thermostat should start to open at 80° C
(176° F) and be fully open at 95° C (203° F).
D. If the thermostat does not open or remains
open, it must be replaced.
3. Inspect all coolant hoses, connections, and clamps
for deterioration, cracks, and wear.
NOTE: All coolant hoses and clamps should be
replaced every four years or 4000 miles.
INSTALLING
1. Place the thermostat and O-ring into the thermo-
stat housing; then secure the thermostat housing to
the cylinder head with the two cap screws.
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2. Install the crossover coolant hose onto the water
pump and engine water inlet. Secure with the two
hose clamps.
3. Slide the upper hose onto the thermostat housing
and radiator. Secure with the two hose clamps.
4. Install the lower coolant hose onto the water pump
housing and radiator. Secure with the two hose
clamps.
5. Fill the cooling system with the recommended
amount of antifreeze. Check for leakage.

Fan

REMOVING
1. Remove the radiator (see Radiator in this section).
2. Remove the fan assembly from the radiator.
INSTALLING
1. Position the fan assembly on the radiator; then
secure with existing hardware.
NOTE: The fan wiring must be in the upper-right
position.
2. Install the radiator (see Radiator in this section).

Water Pump

NOTE: The water pump is a non serviceable com-
ponent and must be replaced as an assembly
To replace the water pump, see Section 3 - Left-Side
Components.
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