Cooling system
OPM 360 en-GB 55
© Scania CV AB 2017, Sweden
8.
Drain the water from the cooling system.
9. If necessary, clean the expansion tank by de-
taching all hoses and rinsing and cleaning
with a degreasing agent and a dishwashing
brush.
Alternatively, dismantle the expansion tank
and clean it with water with 10% of detergent
2 479 017. Fill the expansion tank with the
mixture, shake it around and drain it out. Re-
new the cover of the expansion tank.
10. Refit the thermostats.
11. Fill the cooling system with new coolant as
described in the next section.
12. Check again whether further dirt or oil has
collected in the expansion tank. Decide
whether it it is necessary to carry out another
full cleaning or whether only rinsing or
cleaning of the expansion tank will suffice.
Internal: Removing deposits
Use a suitable container. Used coolant must be
disposed of as specified in national and interna-
tional laws and regulations.
1. Run the engine until it has reached operating
temperature and then drain the cooling sys-
tem following the previous description.
2. Remove the thermostats.
3. Fill the cooling system with clean, hot water
mixed with radiator detergent which is based
on sulphamic acid and contains dispersing
agents. Follow the manufacturer's instruc-
tions for the concentration and cleaning peri-
od.
4. Run the engine for the specified time. Re-
member to switch on the cab heating system,
if one is installed.
5. Drain the cooling system.
6. Fill the cooling system with clean, hot water
and run the engine for about 20-30 minutes.
7. Drain the water from the cooling system.
8. Refit the thermostats.
9. Fill the cooling system with new coolant as
described in the next section.
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