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GW4500
combination of 240 volt loads and
also with 120 volt loads through
the 120 volt receptacles.
The 120/240 volt twist lock
receptacle, found on some welder /
generators, is rated for 20 amps and
may be used in any combination of
120 volt and 240 volt loads.
4. Individual receptacles should not
be loaded beyond the amperage
rating.
5. Total combined load through any
combination of receptacle must
not exceed the rated load limits of
the welder / generator. Refer to the
identification plate on the welder /
generators for amp and wattage
specifications.
6. Always shut off and remove loads
before starting or shutting off the
welder / generator engine.
7. When plugging multiple electrical
load devices into the welder /
generators receptacles, be sure to
connect and activate the highest
power draw item first. Allow
the welder / generator engine to
stabilize, then connect and activate
the next highest power draw
device. The smallest power draw
device should be connected to the
receptacle and activated last.
NOTE: Power draw can be calculated
by multiplying volts and amps. The
resulting number is wattage.
Never exceed the posted maximum
wattage for the welder / generator
or any individual receptacle. Refer to
owner's manuals and product tags to
determine the wattage of all electrical
load devices.
If actual watt ratings are not available,
the Power Usage Chart, see Table 1, may
be used as a general guideline.
Remember that devices which generate
heat during operation such as heaters,
incandescent light bulbs, motors and
hair dryers have a higher power draw
than devices which generate little heat
during operation such as florescent
bulbs, radios, and clocks.
Long power cords and extension cords
also draw additional power. Keep cords
at minimum possible length.
Refer to Table 2 for maximum limits for
lengths of extension cords.
8. Circuit protection is provided by a
circuit breaker. The circuit breaker
opens when the welder / generator
load exceeds its maximum capacity
or a short circuit occurs. If the
circuit breaker opens, perform the
following procedures to correct the
problem:
a. Shut off and disconnect all
electrical loads.
b. Attempt to determine the cause
of the electrical problem -
overloading or short circuit.
c. Do not use any devices that have
short circuits. Avoid overloading
the welder / generator.
d. Press the circuit breaker
pushbutton to reset the circuit
breaker.
Repeated cycling of
the circuit breaker
indicates a problem and may cause
damage to the welder / generators or
load devices. Do not operate the
welder / generators if repeated cycling
of the circuit breaker occurs.
Pre-Operation (Continued)
LOW OIL SHUTDOWN
A low oil shutdown switch is provided
to protect the engine and welder /
generators on most extended run
models. When engine oil level drops
too low for proper engine operation,
the low oil shutdown switch causes the
engine to shut off. If oil level is low
when attempting to start the welder /
generators engine, the low oil level
shutdown switch prevents the engine
from starting. If engine does not start,
check oil level.
NOTE: It is important to keep the
welder / generator unit on a level
surface. The oil level shutdown switch
can prevent the engine from starting
even if oil level is sufficient, when the
welder / generators unit is placed on an
uneven surface.
Generator Operation
(FRONT PANEL SWITCH MUST BE SET TO
GENERATOR POSITION)
LOAD DEVICES
1. All load devices and extension cords
should use three prong terminals.
Refer to Table 2 for extension cord
and cable size requirements.
2. Allow the engine to run for 2-
3 minutes before applying any
electrical loads.
3. The 120 volt receptacles are rated
for 20 amps and may be used in any
combination of 120 volt loads and
also with 240 volt loads through
the 240 volt receptacles.
The 240 volt receptacles, found on
some welder / generators, are rated
for 20 amps and may be used in any
TABLE 1 - ESTIMATED POWER USAGE (WATTS)
LOAD DEVICE WATTS LOAD DEVICE WATTS LOAD DEVICE WATTS LOAD DEVICE WATTS
Air conditioner 2000-3000 Electric drill
(large)
500-1000 Radio 50-200 Toaster 900-1700
Automatic
washer
150-1500 Fan 40-200 Refrigerator 190-2000 Vacuum cleaner 200-300
Brooder 100+ Freezer 300-500 Skillet 1200 Water pump 1000-3000
Clothes dryer 5000-10,000 Hot plate 330-1100 Space heater 600-4800 Water heater 1000-5000
Coffee maker 400-700 Iron 500-1500 Sump pump 400-3000 Small hand saw 1000-2000
Electric drill
(small)
225-1000 Light bulb AS RATED Television 200-500 Large hand saw 1500-2500