Engine Oil Sample - Obtain - Perkins 904F-E28T Operation And Maintenance Manual

86
Maintenance Section

Engine Oil Sample - Obtain

4. If necessary, drain a small quantity of oil from the
crankcase to reduce the oil level. The oil level
needs to be between the mark (L) and the mark
(H) before operating the engine. Refer to the
"Operation and Maintenance Manual", Engine Oil
and Filter – Change, "Drain the Engine Lubricating
Oil" for more information.
After Operating the Engine
Note: Before checking the oil level, the engine must
have been switched off for a minimum of 30 minutes
to allow the oil to drain down to the crankcase.
Illustration 45
Typical example of type 2 oil level gauge (dipstick)
(L) Low
(H) High
Illustration 46
Typical example of type 1 oil level gauge (dipstick)
(L) Low
(H) High
1. Check the oil level and maintain the oil level
between the mark (L) and the mark (H) on the
engine oil level gauge (dipstick). Do not fill the
crankcase above the mark (H).
2. If necessary, remove the oil filler cap and add oil.
Note: When the oil level is shown to be at the (L)
mark, 1 L (0.3 US gal) of oil added will bring up the
oil level within the (L) and (H) marks.
3. Clean the oil filler cap and install the oil filler cap.
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.
g06553532
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:
g06551003
• 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.
M0125147
i01907674