15
OPM-151/A
ENGINE CARE
WARNING: PERSONAL INJURY
Failure to follow proper maintenance guidelines and
precautions of your generator can cause serious injuries
or death.
MAINTENANCE SCHEDULE
If major engine service or repair is required, contact an
authorized engine service center. The manufacturer of
these engines has established an excellent world-wide
engine service organization. Engine service is very likely
available from a nearby authorized dealer or distributor.
See following table.
* Replace the paper filter only.
1. For commercial use, log hours of operation to
determine proper maintenance intervals.
2. Service more frequently when used in dusty areas.
3. If there are deposits of grass, trash, or other debris,
clean regularly.
4. These items should be serviced by a servicing dealer,
unless you have proper tools and are mechanically
proficient.
CHECKING THE OIL LEVEL
The oil level must always be checked before the engine is
started. Refer to page 7 of this manual for instructions on
checking the oil level. Take care to remove any dirt or debris
from around the oil plug before removing. Be sure the oil
level is maintained.
CHANGING THE OIL
Refer to the Maintenance Schedule Chart for required oil
change intervals.
Outdoor temperatures determine the proper oil viscosity for
the engines. Winco recommends our 5W-30 fully synthetic
oil to give you excellent protection in cold temperatures
while maintaining excellent performance in warmer
weather
A. Start the engine and warm it up, stop the engine and
remove the spark plug wire to prevent it from
accidentally being started.
B. This engine has an oil drain valve for your convenience.
Attach a neoprene hose and drain the oil into an
approved
container.
C. Remove the oil filter and dispose of it properly.
D. Before you install the new oil filter, clean the filter
mounting base and coat the seal of the new oil filter
will clean engine oil.
E. Install the oil filter by hand until the gasket contacts the
oil filter adapter, then tighten the oil filter 1/2 to 3/4
turns.
F. Replace oil drain bolt making sure the sealing washer is
in
place.
G. Remove the oil filler cap and refill with new oil. Make
sure to use the proper grade oil based on your
operating
temperature.
NOTE: This engine requires 57.6 ounces (1.8 quarts) of
oil if it is completely drained. Use caution when refilling
the engine as some residual oil may have remained in the
engine. Always use the dipstick when filling the engine with
oil to prevent overfilling.
H. Replace filter plug.
I. Start the engine and warm it up.
J . After warming up the engine, recheck the oil level and
refill as necessary to bring it to the proper level.
Neoprene hose, 1/2” I.D.
Cut to length
ENGLISH
AIR CLEANER
Inspection
Cleaning
OIL FILTER
Change
OIL FILTER
SEAL
FILTER MOUNTING BASE
OIL FILTER SOCKET
AIR CLEANER COVER LATCH
AIR CLEANER CASE
PACKING
FOAM FILTER
ELEMENT
PAPER FILTER
ELEMENT
AIR CLEANER
COVER
WING NUT
AIR CHAMBER
9
Operating the engine without an air filter, or with a damaged air
filter, will allow dirt to enter the engine, causing rapid engine wear.
This type of damage is not covered by the Distributor’s Limited
Warranty.
Remove the air cleaner cover and inspect the filter elements.
Clean or replace dirty filter elements. Always replace damaged
filter elements.
Pull the air cleaner cover latch to the unlocked position, and
remove the cover.
Remove the paper filter element and foam filter element from
the air cleaner case.
Inspect both filter elements, and replace them if they are
damaged. Always replace the paper filter element at the
scheduled interval (see page
).
A dirty air cleaner will restrict air flow to the carburetor, reducing
engine performance. If you operate the engine in very dusty areas,
clean the air filter more often than specified in the MAINTENANCE
SCHEDULE (see page ).
Remove the wing nut from the paper filter element.
Drain the engine oil, and retighten the drain bolt securely.
Remove the oil filter, and drain the oil into a suitable container.
Dispose the used oil and filter in a manner compatible with the
environment.
Use an oil filter socket, rather than a strap wrench, to avoid
striking and damaging the oil pressure switch.
Clean the filter mounting base, and coat the seal of the new oil
filter with clean engine oil.
Use only a Honda Genuine oil filter or a filter of equivalent
quality specified for your model. Using the wrong filter, or a
non-Honda filter which is not of equivalent quality, may cause
engine damage.
Oil filter tightening torque:
Refill the crankcase with the specified amount of the
recommended oil (see page ). Reinstall the oil filler cap and oil
level dipstick.
Start the engine, and check for leaks.
Stop the engine, and check the oil level as described on page .
If necessary, add oil to bring the oil level to the upper limit mark
on the oil level dipstick.
Screw on the new oil filter by hand until the seal contacts the
filter mounting base, then use an oil filter socket tool to tighten
the filter an additional 3/4 turn.
12 N·m (1.2 kgf·m , 9 lbf·ft)
Remove the foam filter element from the paper filter element.
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