OPM 250 en-GB 47
©
Scania CV AB 2016, Sweden
Cooling system
Filling coolant
This procedure applies when the cooling system
has been drained and needs to be filled with a
large amount of coolant.
It is not permissible to fill large amounts of cool-
ant via the expansion tank. Filling via the expan-
sion tank leads to air locks in the cooling system
which can lead to damage to the coolant pump
shaft seal for example.
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.
Fill the cooling system only with ready-mixed
coolant.
Do not start the engine until the correct coolant
level has been obtained. If the engine is started
with a coolant level that is too low, the coolant
pump shaft seal may be damaged, which can re-
sult in leaks.
Special tools
1. Connect the coolant pump to the lowest drain
valve in the cooling system. The location of
the lowest drain valve for the engine may dif-
fer depending on engine application.
2. 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.
Number Designation Illustration
2 443 679 Coolant pump
Finishing work
1. Open the bottom valve on the sea water inlet.
2. Start the engine and check that no leakage
occurs.
3. Check the coolant level and top up the cool-
ant via the expansion tank if necessary.
To Next Page
Loading...
Need help?
General
