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Maintenance Section
Coolant Specifications
NOTICE
Do not use a conventional coolant to top-off a cooling
system that is filled with Extended Life Coolant
(ELC).
Do not use standard Supplemental Coolant Additive
(SCA).
Do not use ELC in systems with standard SCA / SCA
filters. When switching from conventional coolant to
ELC in a system equipped with SCA filter, remove the
filter from the system to prevent ELC contamination
and filter corrosion and leaks.
ELC Cooling System Cleaning
Note: If the cooling system is already using ELC,
cleaning agents are not required at the specified
coolant change interval. Cleaning agents are only
required if the system has been contaminated by the
addition of some other type of coolant or by cooling
system damage.
Distilled or deionized water is the only cleaning agent
that is required when ELC is drained from the cooling
system.
After the cooling system is drained and the cooling
system is refilled, operate the engine until the coolant
level reaches the normal operating temperature and
until the coolant level stabilizes. As needed, add the
coolant mixture to fill the system to the specified
level.
Recycling Perkins ELC
Perkins ELC can be recycled into conventional
coolants. The drained coolant mixture can be distilled
to remove the ethylene glycol and the water. The
ethylene glycol and the water can be reused. The
distilled material does not contain the additives that
are classified as Perkins ELC. Consult your Perkins
distributor for more information. Recycled coolants
should meet the most current revision level of "ASTM
D6210".
Changing to Perkins ELC
To change from heavy-duty antifreeze to the Perkins
ELC, perform the following steps:
NOTICE
Care must be taken to ensure that all fluids are con-
tained during performance of inspection, mainte-
nance, testing, adjusting and the repair of the
product. Be prepared to collect the fluid with suitable
containers before opening any compartment or disas-
sembling any component containing fluids.
Dispose of all fluids 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 distilled or deionized water
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 distilled or deionized
water.
6. Fill the cooling system with distilled or deionized
water and operate the engine until the engine is
warmed to 49° to 66°C (120° to 150°F).
NOTICE
Incorrect or incomplete flushing of the cooling system
can result in damage to copper and other metal
components.
To avoid damage to the cooling system, make sure
that the cooling system is completely flushed with dis-
tilled or deionized water. Continue to flush the system
until all signs of the cleaning agent are gone.
Most commercial cooling system cleaning agents are
corrosive and their use is not recommended by Per-
kins. If these agents have to be used to remove
heavy deposits, then the cleaning agents should not
be left in the system any longer then recommended
by the agent manufacturer and engine temperature
should not exceed 30° C (86° F). The system must
be thoroughly flushed with distilled or deionized water
after use of these cleaning agents.
7. Drain the cooling system into a suitable container
and flush the cooling system with distilled or
deionized water.
Note: The cooling system cleaner must be
thoroughly flushed 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 7 until the system is
completely clean.
9. Fill the cooling system with the Perkins Premixed
ELC.
SEBU8430-02
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