20 Water Pump, Cooling System; Cooling System; Checking The Antifreeze And Coolant Level - Husqvarna FE 450 2016 Repair Manual

20.1 Cooling s�stem

Checking the antifreeze and coolant level

Warning
Danger of scalding
-
Do not open the radiator, the radiator hoses or other cooling system components if the engine or
the cooling system are at operating temperature.
-
Allow the cooling system and the engine to cool down before you open the radiator, the radiator
hoses or other components of the cooling system.
-
In the event of scalding, rinse the area affected immediately with lukewarm water.
A
Warning
Danger of poisoning
-
Keep coolant out of the reach of children.
-
Do not allow coolant to come into contact with the skin, the eyes and clothing.
-
Consult a doctor immediately if coolant is swallowed.
-
Rinse the affected area immediately with plenty of water in the event of contact with the skin.
-
Rinse eyes thoroughly with water and consult a doctor immediately if coolant gets into the eyes.
-
Change clothing if coolant spills onto your clothing.

20 WATER PUMP, COOLING SYSTEM

Water pump
The water flow through the radiator is controlled as a function
of the coolant temperature. The cooling system is divided into
two circuits. In the warming-up phase of the engine, the coolant
flows through the small cooling circuit. This heats up the engine
quickly. The thermostat
the radiator (large cooling circuit). This keeps the engine temper­
ature constant.
The pressure resulting from the warming of the cooling system is
regulated by a valve in radiator cap
ing the vehicle at the specified coolant temperature will not result
in a risk of malfunctions.
1120 °C (248 °F)
Cooling is effected by the air stream.
The lower the speed, the less the cooling effect. Dirty cooling fins
also reduce the cooling effect.
The radiator fan provides extra cooling. It is controlled by a ther­
moswitch.
307532-10
During motorcycle operation, the coolant gets very hot and is under pressure.
Coolant is toxic and a health hazard.
Condition
The engine is cold.
O
in the engine circulates the coolant.
8
warms up and opens the opening to
@).
This ensures that operat­
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