SEBU8605-01
67
Maintenance Section
Re
fi
ll Capacities
NOTICE
Care must be taken to ensure that all
fl
uids are
contained during performance of inspection, main-
tenance, testing, adjusting and the repair of the
product. Be prepared to collect the
fl
uid with suitable
containers before opening any compartment or dis-
assembling any component containing
fl
uids.
Dispose of all
fl
uids according to local regulations and
mandates.
1.
Drain the coolant into a suitable container.
2.
Dispose of the coolant according to local
regulations.
3.
Flush the system with clean water in order to
remove any debris.
4.
Use an appropriate cleaner to clean the system.
Follow the instruction on the label.
5.
Drain the cleaner into a suitable container. Flush
the cooling system with clean water.
6.
Fill the cooling system with clean water and
operate the engine until the engine is warmed to
49° to 66°C (120° to 150°F).
NOTICE
Incorrect or incomplete
fl
ushing of the cooling system
can result in damage to copper and other metal com-
ponents.
To avoid damage to the cooling system, make sure to
completely
fl
ush the cooling system with clear water.
Continue to
fl
ush the system until all the signs of the
cleaning agent are gone.
7.
Drain the cooling system into a suitable container
and
fl
ush the cooling system with clean water.
Note:
The cooling system cleaner must be thoroughly
fl
ushed from the cooling system. Cooling system
cleaner that is left in the system will contaminate the
coolant. The cleaner may also corrode the cooling
system.
8.
Repeat Steps 6 and repeat steps 7 until the
system is completely clean.
9.
Fill the cooling system with the Perkins Premixed
ELC.
ELC Cooling System Contamination
NOTICE
Mixing ELC with other products reduces the effective-
ness of the ELC and shortens the ELC service life.
Use only Perkins Products for premixed or concen-
trate coolants. Failure to follow these recommenda-
tions can result in shortened cooling system compo-
nent life.
ELC cooling systems can withstand contamination to
a maximum of 10 percent of conventional heavy-duty
antifreeze or SCA. If the contamination exceeds 10
percent of the total system capacity, perform ONE of
the following procedures:
•
Drain the cooling system into a suitable container.
Dispose of the coolant according to local
regulations. Flush the system with clean water. Fill
the system with the Perkins ELC.
•
Drain a portion of the cooling system into a suitable
container according to local regulations. Then,
fi
ll the cooling system with premixed ELC. This
procedure should lower the contamination to less
than 10 percent.
•
Maintain the system as a conventional Heavy-Duty
Coolant. Treat the system with an SCA. Change
the coolant at the interval that is recommended for
the conventional Heavy-Duty Coolant.
Commercial Heavy-Duty Antifreeze and
SCA
NOTICE
Commercial Heavy-Duty Coolant which contains
Amine as part of the corrosion protection system must
not be used.
NOTICE
Never operate an engine without water temperature
regulators in the cooling system. Water temperature
regulators help to maintain the engine coolant at the
correct operating temperature. Cooling system prob-
lems can develop without water temperature regula-
tors.
Check the antifreeze (glycol concentration) in
order to ensure adequate protection against boiling
or freezing. Perkins recommends the use of a
refractometer for checking the glycol concentration.
A hydrometer should not be used.
Perkins engine cooling systems should be tested at
500 hour intervals for the concentration of SCA.
