MAINTENANCE ON CHASSIS AND ENGINE 150
9.78Cooling system
600130-10
The water pump in the engine forces the coolant to flow.
The pressure resulting from the warming of the cooling system is regulated by a valve in the
radiator cap . The specified coolant temperature is therefore permissible without danger of
function problems.
120 °C (248 °F)
Cooling is effected by the air stream. The radiator fan provides extra cooling.
The lower the speed, the less the cooling effect. Dirty cooling fins also reduce the cooling
effect.
9.79Radiator fan
600117-10
The radiator fan is located on the radiator under the fuel tank.
Working range within which radiator fan is switched on and off.
Thermoswitch
Switch-off temperature 80 °C (176 °F)
Switch-on temperature 85 °C (185 °F)
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