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SEBU8605-01
85
Maintenance Section
Cooling System Coolant (ELC) - Change
Flush
1.
Flush the cooling system with clean water in order
to remove any debris.
2.
Close the drain cock or install the drain plugs.
Close the drain cock or install the drain plug on
the radiator.
NOTICE
Do not
fi
ll the cooling system faster than 5 L
(1.3 US gal) per minute, in order to avoid air locks.
Cooling system air locks may result in engine damage.
3.
Fill the cooling system with clean water. Install the
cooling system
fi
ller cap.
4.
Start and run the engine at low idle until the
temperature reaches 49 to 66 °C (120 to 150 °F).
5.
Stop the engine and allow the engine to cool.
Loosen the cooling system
fi
ller cap slowly in
order to relieve any pressure. Remove the cooling
system
fi
ller cap. Open the drain cock or remove
the drain plug on the engine. Open the drain cock
or remove the drain plug on the radiator. Allow
the water to drain. Flush the cooling system with
clean water.
Fill
1.
Close the drain cock or install the drain plug on the
engine. Close the drain cock or install the drain
plug on the radiator.
NOTICE
Do not
fi
ll the cooling system faster than 5 L
(1.3 US gal) per minute, in order to avoid air locks.
Cooling system air locks may result in engine damage.
2.
Fill the cooling system with Commercial
Heavy-Duty Coolant. Add Supplemental Coolant
Additive to the coolant. For the correct amount,
refer to the Operation and Maintenance Manual,
“Fluid Recommendations” topic (Maintenance
Section) for more information on cooling system
speci
fi
cations. Do not install the cooling system
fi
ller cap.
3.
Start and run the engine at low idle. Increase
the engine rpm to high idle. Operate the engine
in order to open the engine thermostat. This
procedure will allow any air in the system to be
purged. Decrease the engine speed to low idle.
Stop the engine.
4.
Maintain the coolant level at the maximum mark
that is correct for your application.
g00103639
Illustration 49
Filler cap
5.
Clean the cooling system
fi
ller cap and inspect the
gasket. If the gasket is damaged, discard the old
fi
ller cap and install a new
fi
ller cap. If the gasket
is not damaged, use a suitable pressurizing pump
in order to test the pressure of the
fi
ller cap. The
correct pressure is stamped on the face of the
fi
ller cap. If the
fi
ller cap does not retain the correct
pressure, install a new
fi
ller cap.
6.
Start the engine. Inspect the cooling system for
leaks and for correct operating temperature.
i04262389
Cooling System Coolant (ELC)
- Change
NOTICE
Care must be taken to ensure that
fl
uids are contained
during performance of inspection, maintenance, test-
ing, adjusting and repair of the product. Be prepared to
collect the
fl
uid with suitable containers before open-
ing any compartment or disassembling any compo-
nent containing
fl
uids.
Dispose of all
fl
uids according to Local regulations and
mandates.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
Clean the cooling system and
fl
ush the cooling
system before the recommended maintenance
interval if the following conditions exist: