Lubrication System; Oil Specifications; Oil Check; Oil Change - Kohler 4EOZ Service

3.3 Lubrication System

See the Service Schedule for oil change and oil filter
replacement intervals. See Section 1 for the oil drain, oil
check, and oil fill locations.
3.3.1

Oil Specifications

Use HD oil that meets the American Petroleum Institute
(API) classification of CD, CC/CD, or CC.
unsuitable oil or neglecting an oil change may result in
damage and a shorter engine life. Figure 3-1 shows the
recommended Society of Automotive Engineers (SAE)
viscosity designation for given operating temperature
ranges.
SAE
Service
Grade
5W20/5W30
10W30
°C
--30 --20 --10
°F
--20 0
Operating Temperature
Figure 3-1 Engine Oil Selection
Note: Failure to observe the oil specifications may
cause inadequate lubrication/oil pressure and
cold-starting difficulties.
3.3.2

Oil Check

Check the oil level in the crankcase daily or before each
startup to ensure that the level is in the safe range. To
check the oil level, remove the dipstick and wipe the end
clean, reinsert as far as possible, and remove. Maintain
the oil level between the Min and Max marks on the
dipstick, as shown in Figure 3-2.
Figure 1-1, for dipstick location.
12 Section 3 Scheduled Maintenance
Using an
20W40
15W40
10W40
°C
0 10 20 30 40
°F
20 40 60 80 100
TP-5856-1
See Section 1,
1. Min mark
2. Max mark
Figure 3-2 Oil Level Check Marks
Note: Do not operate the set if the oil level is below the
Min mark or above the Max mark.
3.3.3

Oil Change

Change the oil more frequently if the generator operates
under dirty, dusty conditions. See Figure 3-3 for oil
capacities.
Model L (Qts.)
3.5EFOZ/4EOZ 1.25 (1.32)
Figure 3-3 Oil Capacities
Oil Change Procedure
Whenever possible, drain the oil while it is still warm.
1. Drain the oil.
a. Press the generator set on/off button to stop the
generator set.
b. Disconnect the power to the battery charger, if
equipped.
c. Disconnect the generator set engine starting
battery, negative (--) lead first.
2
1
TP-5586-3
TP-6137 5/03