6
OPM-128/E
OIL RECOMMENDATIONS
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.
OIL ALERT SYSTEM
This generator is equipped with a low oil shutdown system.
This Honda engine uses an float switch mounted inside
the engine. If the oil level drops below a certain point the
low oil module on the engine will shut it down. This low oil
warning system will automatically stop the engine before
the oil level reaches critical danger point. This feature is
designed to prevent costly repairs and downtime.
CAUTION: EQUIPMENT DAMAGE
Allowing the engine to shutdown repeatedly on low oil
level may cause excessive wear which can be cumulative.
GASOLINE
When using gasoline, always use fresh, clean, unleaded
fuel. The engine is certified to operate on unleaded gasoline
with a minimum octane rating of 87 or higher. Gasoline
containing no more the 10% ethanol is acceptable.
CAUTION: EQUIPMENT DAMAGE
Do not use unapproved gasolines, such as E15 or E85.
Do not mix oil in the gasoline. Use of unapproved fuels
will damage the engine components and void the engine
warranty.
Use of fuels with content of ethanol greater than shown
above may cause starting and/or performance problems.
Always ensure that the fuel is clean and free of all
impurities.
WARNING: FIRE DANGER
Gasoline and its fumes are VERY explosive when proper
precautions are not taken.
Never use gasoline that has been stored for an extended
period of time as the fuel will lose its volatile properties
and you will be left with varnish residue. The varnish
like substance will clog the carburetor and will not burn
properly.
The use of fuel additives, such as Sta-Bil, or an equivalent
will minimize the formation of fuel gum deposits. If a unit
has been out of operation for an extended period of time,
it is best to drain old fuel from the engine and replace with
fresh fuel before attempting to start.
See the engine manual for special instruction for operating
this unit at over 5000 feet.
PREPARING THE UNIT
UNPACKING
CAUTION: EQUIPMENT DAMAGE
THIS UNIT HAS BEEN SHIPPED WITH OIL. Failure to
maintain the engine oil at the proper level will result in
serious engine damage.
When you unpack your engine-generator set be sure to
remove all the information sheets and manuals from the
carton.
1. As you receive your unit, it is critical to check it for any
damage. If any damage is noted, it is always easiest to
refuse the shipment and let WINCO take care of the
freight claim. If you sign for the unit, the transfer of the
ownership requires that you file the freight claim
2. Before proceeding with the preparations of your new
generator for operation, take a couple of minutes to
ensure the unit you have received is the correct model
and review the specification pages in this manual to
ensure that this unit meets your job requirements.
LUBRICATION
Before starting the engine, check that the crankcase has
the proper level of a good quality oil. The recommended
grade oil and quantity of oil required is listed in the engine
operator’s manual and in the Oil Recommendations section
of this manual. The engine normally holds 38.4 ounces (1.2
quarts) of oil. Use the dipstick to ensure that you have the
correct amount of oil. The full oil level mark on the dipstick
is depicted in the following image.
If needed, oil is added to the engine by removing the oil cap
and adding oil at this point. After filling the crankcase to the
proper level, be sure to properly tighten the oil fill cap.
NOTE: This engine generator must be on a level surface
before you check or add oil to the system.
The necessity of using the correct oil and keeping the
crankcase full cannot be overemphasized. Engine failures
resulting from inadequate or improper lubricant are
considered abuse and not covered by the generator or
engine manufacturer’s warranty.
