TM 5-3895-383-24
Cooling System Coolant Extender (ELC) - Add
SMCS Code: 1352-544-NL
At operating temperature, the engine coolant is hot and
under pressure.
Steam can cause personal injury.
Check the coolant level only after the engine has been
stopped and the fill cap is cool enough to touch with your
bare hand.
Remove the fill cap slowly to relieve pressure.
Cooling system conditioner contains alkali. Avoid contact
with the skin and eyes to prevent personal injury.
NOTICE
Care must be taken to ensure that fluids are contained
during performance of inspection, maintenance, testing,
adjusting and repair of the product. Be prepared to collect
the fluid with suitable containers before opening any
compartment or disassembling any component containing
fluids.
Refer to Special Publication, NENG2500, "Caterpillar Tools
and Shop Products Guide" for tools and supplies suitable
to collect and contain fluids on Caterpillar products.
Dispose of all fluids according to local regulations and
mandates.
When a Caterpillar Extended Life Coolant (ELC) is used, an
Extender must be added to the cooling system. See the
Cooling
System
Specifications
in
the
Operation
and
Maintenance Manual for all cooling system requirements.
Use a 8T-5296 Coolant Test Kit to check the concentration of
the coolant.
For additional information about the addition of Extender, see
the Operation and Maintenance Manual, "Cooling System
Specifications" or consult your Caterpillar dealer.
NOTICE
Mixing ELC with other products reduces the effectiveness
of the coolant and shortens coolant life.
Use only Caterpillar products or commercial products that
have passed the Caterpillar EC-1 specification for pre-
mixed or concentrate coolants. Use only Caterpillar
Extender with Caterpillar ELC.
Failure to follow these recommendations can result in
shortened cooling system component life.
1.
Stop the engine. Allow the cooling system to completely
cool.
Illustration 152
2.
Open the engine compartment.
Illustration 153
3.
Slowly loosen the cooling system pressure cap in order
to relieve system pressure. Remove the cooling system
pressure cap.
4.
If necessary, drain enough coolant from the radiator in
order to allow the addition of the Extender.
Maintenance Section
Cooling System Coolant Extender (ELC) - Add
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