Perkins 403J-E17T Operation And Maintenance Manual page 70

70
Maintenance Section
Fluid Recommendations
NOTICE
Do not use a commercial coolant/antifreeze that only
meets the ASTM D3306 specification. This type of
coolant/antifreeze is made for light automotive
applications.
NOTICE
A commercial heavy-duty antifreeze that meets
"ASTM D4985" specification requires a treatment
with an SCA at the initial fill. Read the label or the in-
structions that are provided by the manufacturer of
the product.
NOTICE
A commercial heavy-duty antifreeze that meets either
"ASTM D4985" or "ASTM D6210" specification re-
quires the SCA concentration to be checked at 500-
hour service intervals.
Perkins recommends a 50 percent volume glycol and
distilled or deionized water of the correct
specification. This mixture will provide optimum
performance as a coolant/antifreeze.
Distilled or deionized water is preferred. Water which
has the recommended properties may be used.
Table 15
Coolant Service Life
Coolant Type Service Life
Commercial
Heavy-Duty Anti- 3000 Service Hours
freeze that meets or Two Years
"ASTM D6210"
Commercial
Heavy-Duty Anti- 3000 Service Hours
freeze that meets or One Year
"ASTM D4985"
6,000 Service Hours
Perkins ELC
or Three Years
(1) Use the interval that occurs first. The cooling system must also
be flushed out at this time. These service lives can only be met
if regular coolant sampling, analysis, and proper maintenance
are carried out, with the engine in normal service.
ELC
Perkins provides ELC for use in the following
applications:
• Heavy-duty diesel engines
• Automotive applications
Required
(1)
Maintenance
SCA at maintenance
intervals
SCA at initial fill and
SCA at maintenance
intervals
-
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 to provide superior corrosion protection for
all metals in engine cooling systems.
ELC is available in a premixed cooling solution with
distilled water. ELC is a 50 percent by volume of
glycol mixture. 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.
Containers of several sizes are available. Consult
your Perkins distributor for the part numbers.
ELC Cooling System Maintenance
Correct additions to the Extended Life
Coolant
NOTICE
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.
To maintain the correct balance between the
antifreeze and the additives, you must maintain the
recommended concentration of ELC. Lowering the
proportion of antifreeze lowers the proportion of
additive. Lowering the ability of the coolant to protect
the system will form 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 Supplemental Coolant Additive (SCA).
Do not use ELC in systems with SCA filters. When
switching from conventional coolant to ELC in a sys-
tem 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 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.
M0094137-02