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MAINTENANCE WORK ON FRAME AND ENGINE
Cooling system
9.68
2
0 0 2
3
0 0 3
The water pump
The pressure in the cooling system resulting from heat is regulated by a valve in the radia-
tor cap. This permits the specified coolant temperature without causing any malfunctions.
125 °C (257 °F)
100608-10
Cooling takes place by means of the air stream and a radiator fan
a thermoswitch.
The lower the speed, the less the cooling effect. Dirty cooling fins also reduce the cooling
effect.
The heat expansion causes the surplus coolant to flow into the compensating tank
the temperature falls, this surplus coolant is sucked back into the cooling system.
400619-10
in the engine forces the coolant to flow.
141
, which is controlled by
. When
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