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Maintenance Section
Engine Oil and Filter - Change
•
Service hours on the engine
•
The number of hours that have accumulated
since the last oil change
•
The amount of oil that has been added since the
last oil change
To ensure that the sample is representative of the
oil in the crankcase, obtain a warm, well mixed oil
sample.
To avoid contamination of the oil samples, the tools
and the supplies that are used for obtaining oil
samples must be clean.
Caterpillar recommends using the sampling valve
in order to obtain oil samples. The quality and the
consistency of the samples are better when the
sampling valve is used. The location of the sampling
valve allows oil that is flowing under pressure to be
obtained during normal engine operation.
The 8T-9190 Fluid Sampling Bottle Group is
recommended for use with the sampling valve. The
bottle group includes the parts that are needed
for obtaining oil samples. Instructions are also
provided.
NOTICE
Do not use the same vacuum sampling pump for ex-
tracting oil samples that is used for extracting coolant
samples.
A small residue of either type sample may remain in
the pump and may cause a false positive analysis for
the sample being taken.
Always use a designated pump for oil sampling and a
designated pump for coolant sampling.
Failure to do so may cause a false analysis which
could lead to customer and dealer concerns.
If the engine is not equipped with a sampling valve,
use the 1U-5718 Vacuum Pump. The pump is
designed to accept sampling bottles. Disposable
tubing must be attached to the pump for insertion
into the sump.
For instructions, see Special Publication, PEHP6001,
“How To Take A Good Oil Sample”. Consult your
Caterpillar dealer for complete information and
assistance in establishing an S·O·S program for
your engine.
i00652130
Engine Oil and Filter - Change
SMCS Code: 1318-510; 1348-044
Hot oil and hot components can cause personal
injury. Do not allow hot oil or hot components to
contact the skin.
Do not drain the oil when the engine is cold. As
the oil cools, suspended waste particles settle
on the bottom of the oil pan. The waste particles
are not removed with the draining cold oil. Drain
the crankcase with the engine stopped. Drain the
crankcase with the oil warm. This draining method
allows the waste particles that are suspended in the
oil to be drained properly.
Failure to follow this recommended procedure will
cause the waste particles to be recirculated through
the engine lubrication system with the new oil.
Drain the Engine Oil
After the engine has been run at the normal
operating temperature, stop the engine. Use one of
the following methods to drain the engine crankcase
oil:
•
If the engine is equipped with a drain valve, turn
the drain valve knob counterclockwise in order to
drain the oil. After the oil has drained, turn the
drain valve knob clockwise in order to close the
drain valve.
•
If the engine is not equipped with a drain valve,
remove the oil drain plug in order to allow the oil
to drain. If the engine is equipped with a shallow
sump, remove the bottom oil drain plugs from
both ends of the oil pan.
After the oil has drained, the oil drain plugs should
be cleaned and installed.
Replace the Oil Filter
NOTICE
Caterpillar oil filters are built to Caterpillar speci-
fications. Use of an oil filter not recommended by
Caterpillar could result in severe engine damage to
the engine bearings, crankshaft, etc., as a result of
the larger waste particles from unfiltered oil entering
the engine lubricating system. Only use oil filters
recommended by Caterpillar.
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