SEBU7833-03 65
Maintenance Section
Engine Oil and Filter - Change
Perkins recomm
ends 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 loca
tion 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 ho
t components c an cause personal
injury. Do not allow hot oil o r 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:
•
Thedateofthesample
•
Engine model
•
Engine numb
er
•
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 la
belled.
To ensure that the sample is representative of the
oil in the c
rankcase, obtain a warm, well mixed oil
sample.
To avoid co
ntamination 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 e
xistence of any ferrous metal particles in
the oil, and the existence of any nonferrous metal
particles in the oil.
i01929323
Engine Oil and F ilter - C hange
Hot oil and hot components can cause personal
injury. Do not allow hot oil o r 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
g01003623
Illustra
tion 38
Oil drain plug
After the engine has been run at the normal operating
temperature, stop the engine. Use one of the
followin
g methods to drain the engine crankcase oil:
•
If the engine is equipped with a drain valve, turn the
drain val
ve 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 (1) in order to allow the
oil to dr
ain. If the engine is equipped with a shallow
sump, remove the bottom oil drain plugs from both
ends of the oil pan.
This document is printed from SPI². Not for Resale.
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