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Maintenance Section
Governor Oil Supply Screen - Clean/Replace
This will help prevent water or sediment from being
pumped from the storage tank into the engine fuel
tank.
If a bulk storage tank has been refilled or moved
recently, allow adequate time for the sediment to
settle before filling the engine fuel tank. Internal
baffles in the bulk storage tank will also help trap
sediment. Filtering fuel that is pumped from the
storage tank helps to ensure the quality of the fuel.
When possible, water separators should be used.
i01015388
Governor Oil Supply Screen -
Clean/Replace
SMCS Code: 1264-070; 1264-510
g00521118
Illustration 34
(1) Screen
(2) Seal
(3) Fitting
(4) Seals
(5) Oil supply tube
1. Remove oil supply tube (5) and seals (4) from
the cylinder head.
2. Remove fitting (3) and seal (2) from the governor
housing.
3. Remove screen (1).
4. Wash screen (1) in solvent in order to remove
any debris. Inspect screen (1) for damage and
inspect screen (1) for deterioration. If necessary,
obtain a new screen. Inspect all seals for
damage and deterioration. If necessary, obtain
new seals.
5. Install screen (1) into the governor housing. The
screen must be far enough into the governor
housing in order to allow clearance for seals (2)
and fitting (3).
6. Install seals (2), fitting (3), seal (4) and oil supply
tube (5).
i01057362
Heat Exchanger - Inspect
SMCS Code: 1379-040
The interval for the maintenance of the tube and
fin heat exchanger depends on the operating
environment of the vessel and on the operating
time. The sea water that is circulated through the
heat exchanger and the amount of operating time
of the vessel affects the following items:
•
Cleanliness of the tubes of the heat exchanger
•
Effectiveness of the heat exchanger system
Operating in water that contains silt, sediment, salt,
algae, etc will adversely affect the heat exchanger
system. In addition, intermittent use of the vessel
will adversely affect the heat exchanger system.
The following items indicate that the heat exchanger
may require cleaning:
•
Increased coolant temperature
•
Engine overheating
•
Excessive pressure drop between the water inlet
and the water outlet
An operator that is familiar with the normal operating
temperature of the coolant can determine when
the coolant temperature is out of the normal range.
Inspection and maintenance of the heat exchanger
are required if the engine is overheating.
Your Caterpillar dealer has the equipment and
the trained personnel that are needed in order
to measure the pressure drop across the heat
exchanger.
The procedure for cleaning the heat exchanger is
similar to the procedure that is used for cleaning
the aftercooler core. Refer to the Operation and
Maintenance Manual, “Aftercooler Core - Clean/Test”
topic (Maintenance Section). For more information
on servicing the heat exchanger, consult your
Caterpillar dealer.
i00907072
Hoses and Clamps -
Inspect/Replace
SMCS Code: 7554-040; 7554-510
Inspect all hoses for leaks that are caused by the
following conditions:
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