5
REV A
OMP-113
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
2.4 to 2.5 quarts of oil. Use the dipstick (‘A’ in following image) to
ensure that you have the correct amount of oil. The full oil level mark
on the dipstick is depicted in the following image as ‘B’.
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
you properly tighten the oil fill cap (‘C’).
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.
B
C
A
OIL RECOMMENDATIONS
Outdoor temperatures determine the proper oil viscosity for the
engines. Use the chart to select the best viscosity for the outdoor
temperature range expected.
OIL ALERT SYSTEM
This generator is equipped with a low oil shutdown system. This Briggs
& Stratton engine uses an oil pressure switch system. If the system
senses low oil pressure, it will automatically shut down the engine. 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.
5
3110-00
60706-239
Self-exciting generators respond to severe overload-
ing differently than utility power. When overloaded,
the engine is not able to supply enough power to
bring the electric motor up to operating speed. The
generator responds with high initial starting current,
but the engine speed drops sharply. The overload
may stall the engine. If allowed to operate at very low
speeds, the electric motor starting winding will burn
out in a short time. The generator winding might also
be damaged.
CAUTION: EQUIPMENT DAMAGE
RUNNING THE GENERATOR SET UNDER
THESE CONDITIONS MAY RESULT IN DAMAGE
TO THE GENERATOR STATOR AS WELL AS THE
MOTOR WINDING.
The heavy surge of current required for starting mo-
tors is required for only an instant. The generator will
not be damaged if it can bring the motor up to speed
in a few seconds of time. If dif
fi
culty is experienced in
starting motors, turn all other electrical loads off and if
possible reduce the load on the electric motor.
PREPARING THE UNIT
UNPACKING
CAUTION: EQUIPMENT DAMAGE
THIS UNIT HAS BEEN SHIPPED
WITHOUT OIL.
Failure to maintain the engine oil at the proper level
will result in serious engine damage.
When you unpack your new engine-generator set be
sure to remove all the information sheets and manu-
als from the carton.
1. This generator-set was in good order when
shipped. Inspect the generator-set promptly after
receiving it. If any damage is noted, notify the trans-
portation company immediately; request proper pro-
cedures for
fi
ling a “concealed damage” claim. Title
to the equipment and responsibility for
fi
ling a claim
rests with you when a generator-set is sent F.O.B.
shipping point. Only you can legally
fi
le a claim.
2. Before proceeding with the preparations of your
new generator-set for operation, take a couple of
minutes to insure the unit you have received is the
correct model and review the speci
fi
cation pages in
this manual to insure that this unit meets your job
requirements.
LUBRICATION
Before starting the engine,
fi
ll the crankcase to the
proper level with a good quality oil. The recommend-
ed grade of oil and quantity of oil required is listed in
the engine operator’s manual and under the service
tab in this manual. This unit was shipped with most
of the oil removed. The engine normally holds 2.4 to
2.5 quarts of oil. Since there is some trapped oil in
the engine, when
fi
lling the crankcase the
fi
rst time
use the dipstick (ref “A”) to ensure that you do not
over
fi
ll the crankcase. Reference “B” shows the full
oil level mark on the dipstick.
Oil is added to the engine by removing the oil
fi
ll cap
(ref “C”) and adding oil at this point. After
fi
lling the
crankcase to the proper level, be sure you properly
tighten the oil
fi
ll 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 keep-
ing 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.
Oil Recommendations
Outdoor temperatures determine the proper oil vis-
cosity for the engines. Use the chart to select the best
viscosity for the outdoor temperature range expected.
A
C
A
B
SAE
30
10W-
30
Synthetic
5W-
30
5W-
30
°
F
°
C
