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TP-6843 1/13 Section 4 Scheduled Maintenance 47
4.2 Lubrication System
See the service schedules in Section 4.1 for oil change
and oil filter replacement intervals. See the service
views in Section 1.7 for the oil drain, oil dipstick, oil fill,
and oil filter locations.
4.2.1 Low Oil Pressure Shutdown
The low oil pressure (LOP) shutdown feature protects
the engine against internal damage if the oil pressure
drops below a minimum pressure because of oil pump
failure or other malfunction.
Note: The LOP shutdown feature does not protect
against damage caused by operating when the
oil level is low; it is not a low oil level shutdown.
Check the oil level regularly, and add oil as
needed.
4.2.2 Oil Check
The generator set is shipped with oil. Before operating
the generator set, check the engine oil in the
crankcase. See Figure 4-1.
Maintain the oil level at or near, not over, the full mark
on the dipstick. Add 5W-30 synthetic oil when the oil
level is low.
Check the oil level before each use. For extended
operation, check the oil level every 8 hours. Do not
check the oil level when the generator set is running.
Shut down the generator set and wait several minutes
before checking the oil.
Figure 4-1
Figure 4-1 Oil Check (typical)
4.2.3 Engine Oil Recommendation
Use 5W-30 API (American Petroleum Institute)
Service Class SG, SH, or SJ synthetic oil. Synthetic oil
oxidizes and thickens less than other oils and leaves
the engine intake valves and pistons cleaner.
4.2.4 Oil Change Procedure
Note: Dispose of all waste materials (engine oil, fuel,
filter, etc.) in an environmentally safe manner.
Drain the oil while it is still warm.
1. Drain the oil.
a. Press the OFF button on the generator set
controller.
b. Disconnect the AC power to the generator set.
c. Disconnect the generator set engine starting
battery, negative (–) lead first.
d. Open the housing service door and remove
roof panel.
e. Clean the area around the dipstick and oil fill
cap.
f. Remove the screw in plug on drain fitting in
skid rail.
g. Open the oil drain valve on the engine.
h. Remove the dipstick and oil fill cap. Allow time
for the engine oil to drain completely.
i. Close the oil drain valve. Replace the cap in
skid rail.
j. Replace the dipstick.
2. Replace the oil filter.
a. Clean the area around the oil filter. Remove
the oil filter by rotating it counterclockwise with
an oil filter wrench.
b. Clean the gasket sealing 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.
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