Engine Oil Sample - Obtain; Engine Oil And Filter - Change - Perkins 904D-E28T Operation And Maintenance Manual

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If an increase in the oil level is noticed, refer to
Troubleshooting, "Oil Contains Fuel".

Engine Oil Sample - Obtain

The condition of the engine lubricating oil may be
checked at regular intervals as part of a preventive
maintenance program. Perkins include an oil
sampling valve as an option. The oil sampling valve
(if equipped) is included in order to regularly sample
the engine lubricating oil. The oil sampling valve is
positioned on the oil filter head or the oil sampling
valve is positioned on the cylinder block.
Perkins recommends using a sampling valve in order
to obtain oil samples. The quality and the consistency
of the samples are better when a sampling valve is
used. The location of the sampling valve allows oil
that is flowing under pressure to be obtained during
normal engine operation.
Obtain the Sample and the
Analysis
Hot oil and hot components can cause personal
injury. Do not allow hot oil or hot components to
contact the skin.
In order to help obtain the most accurate analysis,
record the following information before an oil sample
is taken:
• The date of the sample
• Engine model
• Engine number
• 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
Ensure that the container for the sample is clean and
dry. Also ensure that the container for the sample is
clearly labelled.
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.
The sample can be checked for the following: the
quality of the oil, the existence of any coolant in the
oil, the existence of any ferrous metal particles in the
oil and the existence of any nonferrous metal
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particles in the oil.

Engine Oil and Filter - Change

Hot oil and hot components can cause personal
injury. Do not allow hot oil or hot components to
contact the skin.
Care must be taken to ensure that fluids are con-
tained during performance of inspection, mainte-
nance, testing, adjusting and repair of the product.
Be prepared to collect the fluid with suitable contain-
ers before opening any compartment or disassem-
bling any component containing fluids.
Dispose of all fluids according to local regulations
and mandates.
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
Do not drain the engine lubricating oil when the
engine is cold. As the engine lubricating oil cools,
suspended waste particles settle on the bottom of the
oil pan. The waste particles are not removed with
draining cold oil. Allow 30 minutes after the engine is
stopped, before draining the oil pan. Drain the oil pan
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.
Oil and Filter Change Intervals
The standard engine oil and filter change period is
500 hours or 1 year, whichever occurs sooner. There
are several other factors that can alter the standard
engine oil and filter change of 500 hours.
• If the engine is using engine oil analysis to
determine oil and filter change period.
• The engine is working in a severe service
environment/Load Factor
Maintenance Section
Engine Oil Sample - Obtain
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NOTICE
NOTICE
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