Perkins 1103D Operation And Maintenance Manual page 43

SEBU8352-02
Table 13
Coolant Service Life
Coolant Type
Perkins ELC
Commercial Heavy-Duty Anti-
freeze that meets "ASTM
D4985"
Perkins POWERPART SCA
Commercial SCA and Water
Extended Life Coolant (ELC)
Perkins provides Extended Life Coolant (ELC) for
use in the following applications:
• Heavy-duty spark ignited gas engines
• Heavy-duty diesel engines
• Automotive applications
The anti-corrosion package for ELC is different from
the anti-corrosion package for other coolants. ELC is
an ethylene glycol base coolant. However, ELC
contains organic corrosion inhibitors and antifoam
agents with low amounts of nitrite. Perkins ELC has
been formulated with the correct amount of these
additives in order to provide superior corrosion
protection for all metals in engine cooling systems.
ELC is available in a 1:1 premixed cooling solution
with distilled water. The Premixed ELC provides
freeze protection to −36 °C (−33 °F). The Premixed
ELC is recommended for the initial fill of the cooling
system. The Premixed ELC is also recommended for
topping off the cooling system.
ELC Concentrate is also available. ELC Concentrate
can be used to lower the freezing point to −51 °C
(−60 °F) for arctic conditions.
Service Life
6,000 Service Hours or Three
Years
3000 Service Hours or Two Years
3000 Service Hours or Two Years
3000 Service Hours or Two Years
Containers of several sizes are available. Consult
your Perkins dealer or your Perkins distributor for the
part numbers.
ELC Cooling System Maintenance
Correct additions to the Extended Life
Coolant
NOTICE
Use only Perkins products for pre-mixed or concen-
trated coolants.
Mixing Extended Life Coolant with other products re-
duces the Extended Life Coolant service life. Failure
to follow the recommendations can reduce cooling
system components life unless appropriate corrective
action is performed.
In order to maintain the correct balance between the
antifreeze and the additives, you must maintain the
recommended concentration of Extended Life
Coolant (ELC). Lowering the proportion of antifreeze
lowers the proportion of additive. This will lower the
ability of the coolant to protect the system from
pitting, from cavitation, from erosion, and from
deposits.
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).
When using Perkins ELC, do not use standard SCA's
or SCA filters.
ELC Cooling System Cleaning
Note: If the cooling system is already using ELC,
cleaning agents are not required to be used 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.
Clean water is the only cleaning agent that is
required when ELC is drained from the cooling
system.
After the cooling system is drained and after the
cooling system is refilled, operate the engine while
the cooling system filler cap is removed. Operate the
engine until the coolant level reaches the normal
operating temperature and until the coolant level
stabilizes. As needed, add the coolant mixture in
order to fill the system to the specified level.
43
Maintenance Section
Fluid Recommendations