6.
Install the drain plugs and tighten securely.
Fill
NOTICE
Do not fill the cooling system faster than 5 L
(1.3 US gal) per minute to avoid air locks.
Cooling system air locks may result in engine
damage.
1.
Fill the cooling system with the coolant/antifreeze.
Refer to this Operation and Maintenance Manual,
“Refill Capacities and Recommendations” topic
(Maintenance Section) for more information on
cooling system specifications. Do not install the
cooling system filler cap.
2.
Start and run the engine at low idle. Increase the
engine rpm to high idle. Operate the engine to
open the engine thermostat. This operation will
allow any air in the system to be purged. Decrease
the engine speed to low idle. Stop the engine.
3.
Maintain the coolant level at the maximum mark
that is correct for your application.
4.
Clean the cooling system filler cap. Inspect the
gasket that is on the cooling system filler cap. If
the gasket that is on the cooling system filler cap is
damaged, discard the old cooling system filler cap
and install a new cooling system filler cap. If the
gasket that is on the cooling system filler cap is not
damaged, perform a pressure test. If the cooling
system filler cap does not retain the correct
pressure, install a new cooling system filler cap.
5.
Start the engine. Inspect the cooling system for
leaks and for the correct operating temperature.
i07766761
Cooling
System
Coolant
(ELC)
-
Change
Clean
the
cooling
system
and
flush
the
cooling
system
before
the
recommended
maintenance
interval
if
the
following
conditions
exist:
• The engine overheats frequently.
• Foaming is observed.
• The oil has entered the cooling system and the
coolant is contaminated.
• The fuel has entered the cooling system and the
coolant is contaminated.
Note:
Use non-foaming detergent to clean oil or fuel
contamination.
Note:
When the cooling system is cleaned, only
clean water is needed when the ELC is drained and
replaced.
Note:
Inspect the water pump and the water
temperature regulator after the cooling system has
been drained. Replace the water pump, the water
temperature regulator, and the hoses, if necessary.
NOTICE
Service or repair of the engine cooling system must
be performed on level ground. The engine must be
level to check the coolant level. The engine must be
level to avoid the risk of introducing an air lock into
the coolant system.
Drain
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the
pressure.
1.
Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly to
relieve any pressure. Remove the cooling system
filler cap.
54
M0106585