Full-Pressure Lubrication System; Service; Oil Filter; Oil Sentry - Kohler Courage SV470-600 Service Manual

7. Install the replacement oil filter to the mounting
pad. Turn the oil filter clockwise until the rubber
gasket contacts the pad, and then tighten the filter
an additional 2/3 to 1 turn.
8. Fill the crankcase with new oil of the proper type,
to the "F" mark on the dipstick.
9. Reinstall the oil fill cap/dipstick and push firmly
into place.
10. Test run the engine to check for leaks. Stop the
engine, allow a minute for the oil to drain down,
and recheck the level on the dipstick. Add more
oil, as necessary, so the oil level is up to but not
over the "F" mark.
NOTE: To prevent extensive engine wear or
damage, always maintain the proper oil
level in the crankcase. Never operate the
engine with the oil level below the ''L''
mark or over the ''F'' mark on the dipstick.

Full-Pressure Lubrication System

Operation
This engine uses a full-pressure lubrication system to
deliver oil for internal lubrication. A cam driven, high
efficiency Gerotor oil pump located in the crankcase
™
maintains proper oil flow and oil pressure even at low
speeds and high operating temperatures. Oil is
supplied from the pump via two circuits to the
crankshaft main bearings, crankshaft, connecting rod
bearing surfaces, cam gears, and axis shafts. An
integral pressure relief valve within the oil pump limits
the maximum pressure of the system.
For a cold engine at start up, the oil pressure can go
up to 20-25 psi. For a warm (normal operating
temperature) engine at idle speed, the oil pressure can
go down to 5 psi.

Service

The oil pump rotors typically require no servicing, if
normal maintenance is performed as outlined in
Section 1.
The closure plate must be removed for access to the
oil pump and the rotors. Refer to the "Disassembly "
and "Reassembly" Sections (8 and 10), for removal
and reinstallation procedures.
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Figure 6-7. Oil Pump on Intake Cam Shaft
(Gerotors Removed from Pump Housing).

Oil Filter

These engines are equipped with a full-flow oil filter.
See Figure 6-8.
The oil filter helps remove sludge and other
combustion by-products from the oil. It also extends
the oil change interval and cools the oil.
Figure 6-8. Oil Filter Location.

Oil Sentry

Some engines are equipped with an optional Oil
Sentry
low, Oil Sentry
light or stop the engine, depending on the application.
Operation
The pressure switch is designed to break contact as
the oil pressure increases and make contact as the oil
pressure decreases. At oil pressure above
approximately 2 to 5 psi, the switch contacts open. At
oil pressures below approximately 2 to 5 psi, the
switch contacts close.
Not For Resale
Lubrication System
™
™ oil pressure monitor. If the oil pressure gets
™ will either activate a ''low oil'' warning
Section 6
6
Oil Filter
6.3