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www.chpower.com

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

Summary of Contents for Welder / Generator GW4500

Page 1: ...ich if not avoided COULD result in death or serious injury Caution indicates a potentially hazardous situation which if not avoided MAY result in minor or moderate injury Notice indicates important in...

Page 2: ...by the manufacturer For maintenance and repairs use only products and parts recommended by the manufacturer Be sure that the welder generator is properly grounded to an external ground path prior to o...

Page 3: ...or duty cycles higher than those specified on the equipment labels Never use an electric arc welder to thaw frozen pipes Flying sparks and hot metal can cause injury As welds cool slag can be thrown...

Page 4: ...possible Never wrap arc welder cables around the body Always position the electrode and work leads so that they are on the same side of the body Exposure to electromagnetic fields during welding may...

Page 5: ...itions T Joint made by placing the edge of one piece of metal on the surface of the other piece at approximately a 90 angle Undercut a condition that results when welding amperage is too high The exce...

Page 6: ...t up allow the engine to run for 2 3 minutes with no load 7 As the engine warms up and stabilizes adjust the choke lever to the right until the lever is positioned as far as possible to the right Engi...

Page 7: ...ads 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...

Page 8: ...clamp block 4 Tighten the hex nuts securing the cable in place ELECTRODE HOLDER SEE FIGURE 2 1 Strip 1 2 inch of insulation from the end of the other welding cable Slide the bare wire into the wire s...

Page 9: ...mperage as needed 6 When finished welding turn engine off and store unit properly DUTY CYCLE THERMOSTATIC PROTECTION Welder duty cycle is the percentage of actual weld time that can occur in a ten min...

Page 10: ...trode does not break loose disengage the electrode by releasing it from the holder ELECTRODE TYPE AND SIZE Four types of electrodes are recommended for this welder The electrodes are commonly known by...

Page 11: ...to stick penetration will be poor and uneven beads with irregular ripples result A proper arc should be no longer than the diameter of the rod The sound of a proper arc is a steady crisp sizzle simil...

Page 12: ...itions require different techniques such as a weaving pass circular pass and jogging A higher skill level is required to complete these welds All work should be performed in the flat position if possi...

Page 13: ...5 Open diodes 6 Front panel switch set incorrectly 7 Circuit breaker tripped 1 Adjust engine speed 2 Referring to the wiring diagram clean and reconnect all wiring 3 Replace capacitor 4 Test winding r...

Page 14: ...proper grounding No paint varnish or corrosion 4 Adjust engine speed These diagnostic and repair procedures should be performed by an authorized service center Troubleshooting Chart Welds Symptom Poss...

Page 15: ...ator Welder Power Switch 2 4 6 8 10 12 14 16 18 20 22 24 1 3 5 7 9 11 13 15 17 19 21 23 Capacitor Thermal Trip Fitted Inside the Windings Violet Black Blue Grey Red Brown Yellow Orange Auxiliary Windi...

Page 16: ...16 www chpower com Operating Instructions and Parts Manual 1 2 7 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 11 11 11 21 22 Figure 12 Welder Generator Assembly...

Page 17: ...3811AJ 1 13 Hex head Screw 5 16 18 x 1 1 4 inch 1 14 Flat Washer 5 16 inch ID 2 15 Wing Nut 5 16 18 1 16 Ground Clamp WC100100AV 1 17 Electrode Holder WC200200AV 1 18 Dinse Plug WC000200AV 2 19 Weldin...

Page 18: ...18 www chpower com Operating Instructions and Parts Manual 1 2 3 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 4 10 28 Figure 13 Alternator Assembly...

Page 19: ...Alternator Fan GW001020SV 1 17 Top Cover GW001002SV 1 18 Dinse Socket 200A WC000300AV 2 19 Commutator Knob Small WC400401AV 1 20 Commutator Output GW001045SV 1 21 Commutator Knob Large GW001046SV 1 2...

Page 20: ...g an implied warranty lasts so above limitations may not apply to you C This warranty does not apply to any accessory items included with the product which are subject to wear from usage the repair or...

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