Winco ULTB4000C - Manual (Page 5)

5 12024-00 60706-225
The fi gures given on the previous page are an aver-
age load such as a blower or fan. If the electric mo-
tor is connected to a hard starting load such as an
air compressor, it will require more starting current.
If it is connected to a light load, or no load such as a
power saw, it will require less starting current. The
exact requirement will also vary with the brand or
design of the motor.
Self-exiting 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 DAMAGING THE
GENERATOR STATOR AS WELL AS THE MOTOR
WINDING.
Because the heavy surge of current required for
starting motors 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
When you unpack your new generator be sure to
remove all the information sheets and manuals from
the carton.
1. This generator was in good order when shipped.
Inspect the generator-set promptly after receiving
it. If any damage is noted, notify the transportation
company immediately; request proper procedures
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. ship-
ping point. Only you can legally fi le a claim.
2. Before proceeding with the preparations of
your new generator for operation, take a couple of
minutes to insure the unit you have received is the
correct model and review the specifi cation pages in
this manual to insure that this unit meets your job
requirements.
UNIT INSTALLATION
Plans for installation should be prepared with proper
attention to mechanical and electrical engineering
detail to assure a satisfactory system installation.
The information in this manual is offered as a guide
to fi nalizing your installation plans. The installation
sequence is summarized below.
PLAN THE INSTALLATION
Generally these two-bearing generators are used on
portable equipment. For best service consider the
following:
1. All electrical equipment should be protected from
excessive moisture. Failure to do so will result in
deterioration of the insulation and short circuits and
grounds.
2. The generator should be installed in a sheltered
area. If the unit must be left in the open it should
always be protected with a weather cover such as a
tarp or large piece of canvas after each use to keep
out water and dust.
CAUTION: EQUIPMENT DAMAGE
Always allow the generator and prime mover to cool
before covering with a fl ammable weather covering.
MOUNTING
CAUTION: EQUIPMENT DAMAGE
The generator must be mounted with the engine to a
common rigid base to prevent stress on the engine
and generator shafts and bearings due to vibra-
tion displacement. For permanent installations, the
engine-generator is usually mounted on a sub-frame
which can be shock mounted with special neoprene
pads on the main frame.
CAUTION: EQUIPMENT DAMAGE
Before proceeding with the installation, be sure that
you have completely read and understood the as-
sembly and installation instructions.
An engine with adequate horsepower and a close
regulated (fi xed speed) governor is required for sat-
isfactory operation of this generator.
About 1.4 horsepower is required to produce each
1,000 watts of generator output power assuming
100% effi ciency of both the engine and the genera-