Lubrication System; Oil Specifications; Oil Check; Optional Oil Makeup Kit - Kohler 15REYG Operation

3.3 Lubrication System

3.3.1

Oil Specifications

Use oil that displays the American Petroleum Institute
(API) Starburst certification mark FOR GASOLINE
ENGINES on the container. Do not use oils that are
specifically formulated for diesel engines. CC or CD
classification oils, even when labeled Heavy Duty or For
Natural Gas Engines are not acceptable.
Multi-viscosity oils are recommended.
shows the recommended Society of Automotive
Engineers (SAE) viscosity designation for a given
operating temperature.
Ambient Temperature
--18_C (0_F) or above
Below --18_C (0_F)
Figure 3-1 Engine Oil Selection
3.3.2

Oil Check

Check the oil level in the crankcase every 24 hours of
operation or before each startup to ensure that the level
is in the safe range. Do not check the oil level while
operating the unit. Stop the generator set and keep the
generator set level to get an accurate reading. To check
the oil level, remove the dipstick and wipe the end clean,
reinsert and remove. Maintain the oil level between the
Full and Add marks on the dipstick, as shown in
Figure 3-2. See Section 1, Service Views for the
dipstick location.
Note: Do not operate the set if the oil level is below the
Add mark or above the Full mark on the dipstick.
1. Full mark
2. Add mark
Figure 3-2 Oil Level Check
3.3.3

Optional Oil Makeup Kit

On 30 kW generator sets equipped with the optional oil
makeup kit, check the oil level in the oil reservoir and at
the sight gauge. Refer to the instructions provided with
the oil makeup kit for more information.
TP-6728 10/11
Figure 3-1
SAE Viscosity Grade
10W-30
5W-30
1
2
TP-5586-3
3.3.4

Oil Additions

Adding some oil between oil changes is normal. The
amount varies with generator set usage. Open the oil fill
cap and pour in a small amount of oil using a funnel or
other suitable pouring device. See Section 1, Service
Views, for the oil check and oil fill locations.
3.3.5

Oil and Filter Change

Change the oil according to the service schedule or
before generator set storage. Change the oil more
frequently if the generator set operates under dirty,
dusty conditions. Change the oil while the engine is still
warm. See Figure 3-3 for oil capacity. See Section 1,
Service Views, for oil fill, oil check, and oil filter locations.
Oil Change Procedure
Whenever possible, drain the oil while it is still warm.
1. Drain the oil.
a. Place the generator set master switch in the
OFF position.
b. Disconnect the power to the battery charger, if
equipped.
c. Disconnect the generator set engine starting
battery, negative (--) lead first.
d. Remove the housing side panel.
e. Place an oil collection container below the oil
drain and remove the oil drain plug.
f. Open the oil drain valve on the engine.
g. Allow time for the engine oil to drain completely.
h. Close the oil drain valve.
i. Replace the oil drain plug. Replace the cap on
the oil drain hose. Replace the oil drain hose in
its retaining clip.
2. Replace the oil filter.
a. Remove the
counterclockwise with an oil filter wrench.
b. Clean the contact surface of the oil filter
adapter.
c. Apply a light coat of clean oil to the rubber seal
of the new oil filter.
d. Install the new oil filter following the instructions
provided with the filter.
Section 3 Scheduled Maintenance
oil filter by rotating it
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