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Maintenance Section
Engine Protective Devices - Check
1. Remove the oil filter with a 1U-8760 Chain
Wrench.
2. Cut the oil filter open with a 4C-5084 Oil Filter
Cutter. Break apart the pleats and inspect the oil
filter for metal debris. An excessive amount of
metal debris in the oil filter may indicate early
wear or a pending failure.
Use a magnet to differentiate between the
ferrous metals and the nonferrous metals that
are found in the oil filter element. Ferrous metals
may indicate wear on the steel and cast iron
parts of the engine.
Nonferrous metals may indicate wear on the
aluminum parts, brass parts or bronze parts of
the engine. Parts that may be affected include
the following items: main bearings, rod bearings,
turbocharger bearings, and cylinder heads.
Due to normal wear and friction, it is not
uncommon to find small amounts of debris in the
oil filter. Consult your Caterpillar dealer in order
to arrange for a further analysis if an excessive
amount of debris is found in the oil filter.
g00103713
Illustration 28
Typical filter mounting base and filter gasket
3. Clean the sealing surface of the filter mounting
base. Ensure that all of the old oil filter gasket
is removed.
4. Apply clean engine oil to the new oil filter gasket.
NOTICE
Do not fill the oil filters with oil before installing them.
This oil would not be filtered and could be contaminat-
ed. Contaminated oil can cause accelerated wear to
engine components.
5. Install the oil filter. Tighten the oil filter until the
oil filter gasket contacts the base. Tighten the oil
filter by hand according to the instructions that
are shown on the oil filter. Do not overtighten the
oil filter.
Fill the Engine Crankcase
1. Remove the oil filler cap. Refer to the Operation
and Maintenance Manual for more information on
lubricant specifications. Fill the crankcase with
the proper amount of oil. Refer to the Operation
and Maintenance Manual for more information
on refill capacities.
NOTICE
If equipped with an auxiliary oil filter system or a re-
mote oil filter system, follow the OEM or filter manu-
facturer’s recommendations. Under filling or overfilling
the crankcase with oil can cause engine damage.
NOTICE
To prevent crankshaft bearing damage, crank the en-
gine with the fuel OFF. This will fill the oil filters before
starting the engine. Do not crank the engine for more
than 30 seconds.
2. Start the engine and run the engine at “LOW
IDLE” for two minutes. Perform this procedure in
order to ensure that the lubrication system has
oil and that the oil filters are filled. Inspect the oil
filter for oil leaks.
3. Stop the engine and allow the oil to drain back
to the sump for a minimum of ten minutes.
4. Remove the oil level gauge in order to check the
oil level. Maintain the oil level between the “ADD”
and “FULL” marks on the oil level gauge.
i00626013
Engine Protective Devices -
Check
SMCS Code: 7400-535
Alarms and shutoffs must function properly. Alarms
provide timely warning to the operator. Shutoffs help
to prevent damage to the engine. It is impossible
to determine if the engine protective devices are
in good working order during normal operation.
Malfunctions must be simulated in order to test the
engine protective devices.
A calibration check of the engine protective devices
will ensure that the alarms and shutoffs activate
at the setpoints. Ensure that the engine protective
devices are functioning properly.
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