Cooling system
OPM 320 en-GB
43
©
Scania CV AB 2019, Sweden
Never fill a large amount of cold coolant in a hot
engine. There is great risk of cracks forming in
the cylinder block and cylinder heads.
Do not start the engine until the correct coolant
level has been obtained. If the engine is started
with an insufficient coolant level, it can damage
the coolant pump shaft seal, which leads to cool-
ant leakage.
1.
Open the expansion tank cap.
2.
Connect the coolant pump to the filler nipple
in the cylinder block (1).
3.
Connect the pump's 2 cable terminals to the
battery's negative and positive terminal.
Make sure that the filling starts. If the filling
does not start: Change the position of the ca-
ble terminals.
4.
Start the engine and run it at idling for
15 minutes.
IMPORTANT!
It is very important that the engine is idling. En-
gine overspeed could damage the coolant pump
shaft seal, which leads to coolant leakage.
5.
Switch off the engine and fill with coolant to
the maximum level through the expansion
tank.
Air pockets may still be left in the cooling
system. These will disappear after the engine
has been operated for a period of time.
Therefore, the coolant may need topping up
at a later stage.
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