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Maintenance Section
Sea Water Strainer - Clean/Inspect
•
Aftercooler
•
Heat exchanger
Refer to the Operation and Maintenance Manual,
“Aftercooler Core - Clean/Test” topic (Maintenance
Section) for the cleaning procedure.
Obtain Coolant Analysis
The concentration of supplemental coolant additive
(SCA) should be checked regularly with test kits
or with S·O·S Coolant Analysis (Level 1). Further
coolant analysis is recommended when the engine
is overhauled.
For example, considerable deposits are found in the
water jacket areas on the external cooling system,
but the concentrations of coolant additives were
carefully maintained. The coolant water probably
contained minerals that were deposited on the
engine over time.
A coolant analysis can be conducted in order
to verify the condition of the water that is being
used in the cooling system. A full water analysis
can be obtained by consulting your local water
utility company or an agricultural agent. Private
laboratories are also available for water analysis.
Caterpillar Inc. recommends an S·O·S Coolant
Analysis (Level 2).
S·O·S Coolant Analysis (Level 2)
An S·O·S Coolant Analysis (Level 2) is a
comprehensive coolant analysis which completely
analyzes the coolant and the effects on the cooling
system. An S·O·S Coolant Analysis (Level 2)
provides the following information:
•
Complete S·O·S Coolant Analysis (Level 1)
•
Visual inspection of properties
•
Identification of metal corrosion
•
Identification of contaminants
•
Identification of built up impurities (corrosion and
scale)
S·O·S Coolant Analysis (Level 2) provides a report of
the results of both the analysis and the maintenance
recommendations that are based on the analysis.
For more information about coolant analysis, consult
your Caterpillar dealer.
i00905687
Sea Water Strainer -
Clean/Inspect
SMCS Code: 1371-040; 1371-070
The sea water strainer must be clean in order to
allow proper engine cooling. Check the sea water
strainer for plugging. Inspect the sea water strainer
more frequently if the vessel is being operated
in water which is shallow or dirty. Refer to the
OEM recommendations for more information about
inspecting and cleaning the sea water strainer.
Ensure that the auxiliary water pump is primed and
that the suction line is open.
1. Remove the sea water strainer and clean the
screen. Remove any dirt and debris.
2. Install the sea water strainer. Fill the sea water
strainer and the suction line for the auxiliary
water pump with water.
i01057899
Turbocharger - Inspect
SMCS Code: 1052-040
Periodic cleaning is recommended for the
turbocharger compressor (inlet side). The following
items collect in the turbocharger compressor
housing since the fumes from the crankcase travel
through the inlet air: oil, by-products from oil, and
by-products from combustion. The buildup reduces
boost and air flow. The buildup also contributes to
loss of engine power, increased black smoke, and
overall loss of engine efficiency.
Cleaning and Inspecting
1. Remove the air inlet piping from the turbocharger
and remove the compressor housing from the
turbocharger.
2. Clean the turbocharger compressor housing with
Hydrosolv Liquid Cleaners and a hard bristle
brush.
3. Clean the turbocharger compressor wheel and
clean the backplate assembly with 4C-4079
Brake and Electric Cleaner.
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