OPM 260 en-GB
58
©
Scania CV AB 2021, Sweden
Cooling system
Internal cleaning: Removing deposits
in the cooling system
Environment
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 if possible and then drain the
cooling system following the previous de
-
scription.
2.
Remove the thermostat.
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.
Reinstall the thermostat.
9.
Fill the cooling system with new coolant as
described in the next section.
