Harbor Freight Tools Welder 55525 User Manual

*
220 VAC DUAL  
MIG WELDER  
Model 55525  
AssEMbLy AnD OpERAtIOn InstRUCtIOns  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Visit our website at: http://www.harborfreight.com  
tO pREVEnt sERIOUs InjURy, READ AnD UnDERstAnD  
ALL WARnInGs AnD InstRUCtIOns bEfORE UsE.  
Copyright© 2007 by Harbor Freight Tools®. All rights reserved. No portion of this  
manual or any artwork contained herein may be reproduced in any shape or form  
without the express written consent of Harbor Freight Tools.  
for technical questions or replacement parts, please call 1-800-444-3353.  
*220 VAC refers to input voltage.  
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pRODUCt spECIfICAtIOns  
Welding Current  
Duty Cycle  
35 ~ 110 Amps  
15% @ 110 Amps / 100% @ 35 Amps  
(Refer to chart and explanation on page 18)  
Power Consumption  
220 Volt / 60 Hz / Single Phase / 24.5 Amps  
(Should be connected to a 25 Amp minimum dedicated circuit)  
Open Circuit Voltage  
40 Volts Maximum  
Required Power Plug Type  
3-Prong, 220 VAC, polarized, twist lock (not included)  
NEMA #L6-30 or equivalent  
Power Cord Rating  
Gas Inlet Size  
14 AWG x 3C x 6’ Long  
1/4”  
Cables  
Ground: 6 Gauge, 6’.................Torch: 8 Gauge, 6’  
Welding Wire Size  
Wire Spool Size  
Included Torch Tip Size  
Accessories  
0.23” to 0.035”  
4” Diameter  
0.030”  
Wire Spool / Cylinder Strap / Wire Brush & Hammer /  
Spare .8mm & 1.0mm Welding Tips / Hand-Held Face Shield  
Net Weight  
53.5 Pounds  
sAVE tHIs MAnUAL  
You will need this manual for the safety warnings and precautions, assembly, oper-  
ating, inspection, maintenance and cleaning procedures, parts list and assembly diagram.  
Keep your invoice with this manual. Write the invoice number on the inside of the front  
cover. Keep this manual and invoice in a safe and dry place for future reference.  
GEnERAL sAfEty RULEs  
WARnInG!  
READ AnD UnDERstAnD ALL InstRUCtIOns  
failure to follow all instructions listed below may result in  
electric shock, fire, and/or serious injury.  
sAVE tHEsE InstRUCtIOns  
WORK AREA  
1.  
2.  
Keep your work area clean and well lit. Cluttered benches and dark areas invite  
accidents.  
Do not operate power tools in explosive atmospheres, such as in the pres-  
ence of flammable liquids, gases, or dust. Power tools create sparks which may  
ignite the dust or fumes.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
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3.  
1.  
Keep bystanders, children, and visitors away while operating a power tool.  
Distractions can cause you to lose control. Protect others in the work area from  
debris such as chips and sparks. Provide barriers or shields as needed.  
ELECtRICAL sAfEty  
Grounded tools must be plugged into an outlet properly installed and grounded  
in accordance with all codes and ordinances. never remove the grounding  
prong or modify the plug in any way. Do not use any adapter plugs. Check with  
a qualified electrician if you are in doubt as to whether the outlet is properly  
grounded. If the tools should electrically malfunction or break down, grounding  
provides a low resistance path to carry electricity away from the user.  
2.  
Avoid body contact with grounded surfaces such as pipes, radiators, ranges,  
and refrigerators. There is an increased risk of electric shock if your body is  
grounded.  
3.  
4.  
Do not expose power tools to rain or wet conditions. Water entering a power  
tool will increase the risk of electric shock.  
Do not abuse the power Cord. never use the power Cord to carry the tools or  
pull the plug from an outlet. Keep the power Cord away from heat, oil, sharp  
edges, or moving parts. Replace damaged power Cords immediately. Dam-  
aged Power Cords increase the risk of electric shock.  
5.  
1.  
When operating a power tool outside, use an outdoor extension cord marked  
“W-A” or “W”. These extension cords are rated for outdoor use, and reduce the  
risk of electric shock.  
pERsOnAL sAfEty  
stay alert. Watch what you are doing, and use common sense when operat-  
ing a power tool. Do not use a power tool while tired or under the influence  
of drugs, alcohol, or medication. A moment of inattention while operating power  
tools may result in serious personal injury.  
2.  
3.  
4.  
Dress properly. Do not wear loose clothing or jewelry. Contain long hair.  
Keep your hair, clothing, and gloves away from moving parts. Loose clothes,  
jewelry, or long hair can be caught in moving parts.  
Avoid accidental starting. be sure the power switch is off before plugging  
in. Carrying power tools with your finger on the Power Switch, or plugging in power  
tools with the Power Switch on, invites accidents.  
Remove adjusting keys or wrenches before turning the power tool on. A  
wrench or a key that is left attached to a rotating part of the power tool may result  
in personal injury.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 4  
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5.  
6.  
Do not overreach. Keep proper footing and balance at all times. Proper footing  
and balance enables better control of the power tool in unexpected situations.  
Always wear eye, hearing, and breathing protection. For welding safety equip-  
ment, refer to number 9 on page 6.  
tOOL UsE AnD CARE  
1.  
Use clamps (not included) or other practical ways to secure and support the  
workpiece to a stable platform. Holding the work by hand or against your body  
is unstable and may lead to loss of control.  
2.  
3.  
Do not force the tool. Use the correct tool for your application. The correct  
tool will do the job better and safer at the rate for which it is designed.  
Do not use the power tool if the power switch does not turn it on or off. Any  
tool that cannot be controlled with the Power Switch is dangerous and must be  
replaced.  
4.  
Disconnect the power Cord plug from the power source before making any  
adjustments, changing accessories, or storing the tool. Such preventive safety  
measures reduce the risk of starting the tool accidentally.  
5.  
6.  
store idle tools out of reach of children and other untrained persons. Tools  
are dangerous in the hands of untrained users.  
Maintain tools with care. Keep cutting tools sharp and clean. Properly main-  
tained tools with a sharp cutting edge are less likely to bind and are easier to control.  
Do not use a damaged tool. Tag damaged tools “Do not use” until repaired.  
7.  
8.  
Check for misalignment or binding of moving parts, breakage of parts, and any  
other condition that may affect the tool’s operation. If damaged, have the tool  
serviced before using. Many accidents are caused by poorly maintained tools.  
Use only accessories that are recommended by the manufacturer for your  
model. Accessories that may be suitable for one tool may become hazardous  
when used on another tool.  
sERVICE  
1.  
2.  
tool service must be performed only by qualified repair personnel. Service or  
maintenance performed by unqualified personnel could result in a risk of injury.  
When servicing a tool, use only identical replacement parts. follow instruc-  
tions in the “Inspection, Maintenance, And Cleaning” section of this manual.  
Use of unauthorized parts or failure to follow maintenance instructions may create  
a risk of electric shock or injury.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 5  
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spECIfIC sAfEty RULEs  
1.  
Ground this product. This Welder requires the attachment and use of a UL-listed,  
220 volt, grounded, 3-prong, electrical Power Cord Plug (not included). Only a quali-  
fied electrician should install the Power Cord Plug. Never remove the grounding  
prong or modify the Power Cord Plug in any way. Do not use adapter plugs with  
this product. To comply with the National Electric Code, and to provide additional  
protection from the risk of electrical shock, this product should only be connected  
to a 220 volt, 3-hole outlet that is properly grounded.  
2.  
3.  
4.  
5.  
Maintain labels and nameplates on the Welder. These carry important informa-  
tion. If unreadable or missing, contact Harbor Freight Tools for a replacement.  
Avoid unintentional starting. Make sure you are prepared to begin work before  
turning on the Welder.  
Do not force the Welder. This tool will do the work better and safer at the speed  
and capacity for which it was designed.  
never leave theWelder unattended when it is plugged into an electrical outlet.  
Turn off the tool, and unplug it from its electrical outlet before leaving.  
6.  
7.  
Industrial applications must follow OsHA guidelines.  
never stand on the Welder. Serious injury could result if the Welder is tipped or  
if hot surfaces are accidently contacted.  
8.  
Maintain a safe working environment. Keep the work area well lit. Make sure  
there is adequate surrounding workspace. Always keep the work area free of ob-  
structions, grease, oil, trash, and other debris. Do not use a power tool in areas  
near flammable chemicals, dusts, and vapors. Do not use this product in a damp  
or wet location.  
9.  
prevent eye injury and burns. Wearing and using ANSI-approved  
personal safety clothing and safety devices reduce the risk for injury.  
• Wear ANSI-approved safety impact eye goggles with a welding helmet  
with protective lens.  
• Leather leggings, fire resistant shoes or boots should be worn when using this  
product. Do not wear pants with cuffs, shirts with open pockets, or any clothing  
that can catch and hold molten metal or sparks.  
• Keep clothing free of grease, oil, solvents, or any flammable substances. Wear  
dry, insulating gloves and protective clothing.  
• Wear an approved head covering to protect the head and neck.Use aprons, cape,  
sleeves, shoulder covers, and bibs designed and approved for welding and cut-  
ting procedures.  
• When welding/cutting overhead or in confined spaces, wear flame resistant ear  
plugs or ear muffs to keep sparks out of ears.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 6  
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10.  
prevent accidental fires. Remove any combustible material from the  
work area.  
• When possible, move the work to a location well away from combustible  
materials. If relocation is not possible, protect the combustibles with a  
cover made of fire resistant material.  
• Remove or make safe all combustible materials for a radius of 35 feet (10 meters)  
around the work area. Use a fire resistant material to cover or block all open  
doorways, windows, cracks, and other openings.  
• Enclose the work area with portable fire resistant screens. Protect combustible  
walls, ceilings, floors, etc., from sparks and heat with fire resistant covers.  
• If working on a metal wall, ceiling, etc., prevent ignition of combustibles on the  
other side by moving the combustibles to a safe location. If relocation of combus-  
tibles is not possible, designate someone to serve as a fire watch, equipped with  
a fire extinguisher, during the cutting process and for at least one half hour after  
the cutting is completed.  
• Do not weld or cut on materials having a combustible coating or combustible in-  
ternal structure, as in walls or ceilings, without an approved method for eliminating  
the hazard.  
• Do not dispose of hot slag in containers holding combustible materials. Keep a  
fire extinguisher nearby and know how to use it.  
• After spot welding, make a thorough examination for evidence of fire. Be aware  
that easily-visible smoke or flame may not be present for some time after the fire  
has started. Do not weld or cut in atmospheres containing dangerously reactive  
or flammable gases, vapors, liquids, and dust. Provide adequate ventilation in  
work areas to prevent accumulation of flammable gases, vapors, and dust. Do not  
apply heat to a container that has held an unknown substance or a combustible  
material whose contents, when heated, can produce flammable or explosive va-  
pors. Clean and purge containers before applying heat. Vent closed containers,  
including castings, before preheating, welding, or cutting.  
11.  
Avoid overexposure to fumes and gases. Always keep your head out of the  
fumes. Do not breathe the fumes. Use enough ventilation or exhaust, or both, to  
keep fumes and gases from your breathing zone and general area.  
• Where ventilation is questionable, have a qualified technician take an air sam-  
pling to determine the need for corrective measures. Use mechanical ventilation  
to improve air quality. If engineering controls are not feasible, use an approved  
respirator.  
• Work in a confined area only if it is well ventilated, or while wearing an air-sup-  
plied respirator.  
• Follow OSHA guidelines for Permissible Exposure Limits (PELs) for various fumes  
and gases.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 7  
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• Follow the American Conference of Governmental Industrial Hygienists recom-  
mendations for Threshold Limit Values (TLV’s) for fumes and gases.  
• Have a recognized specialist in Industrial Hygiene or Environmental Services  
check the operation and air quality and make recommendations for the specific  
welding or cutting situation.  
Inhalation Hazard  
Welding produces tOxIC fUMEs and GAssEs.  
Exposure to welding gasses can increase the risk of developing  
certain cancers, such as cancer of the larynx and lung cancer.  
Also, some diseases that may be linked to exposure to welding gas-  
ses or fumes are:  
Early onset of parkinsons Disease  
Damage to the reproductive organs  
Inflammation of the small intestine or stomach  
Heart Disease  
Ulcers  
Kidney damage  
Respiratory diseases such as emphysema, bronchitis or pneumonia  
safety precautions, such as using natural or forced air ventilation and  
wearing a nIOsH-approved respirator, are EssEntIAL to reduce the  
risk of developing the above illnesses.  
12.  
13.  
14.  
Read and understand all instructions and safety precautions as outlined in  
the manufacturer’s manual for the material you will weld or cut.  
Do not touch live electrical parts. Wear dry, insulating gloves. Do not touch elec-  
trode or conductor tong with bare hand. Do not wear wet or damaged gloves.  
protect yourself from electric shock. Do not use outdoors. Insulate yourself from  
the workpiece and ground. Use nonflammable, dry insulating material if possible,  
or use dry rubber mats, dry wood or plywood, or other dry insulating material big  
enough to cover your full area of contact with the work or ground.  
15.  
16.  
Ensure that the unit is placed on a stable location before use. If this unit falls  
while plugged in, severe injury, electric shock, or fire may result.  
Cylinders can explode when damaged:  
• Never weld on a pressurized or a closed cylinder.  
• Never lay a welding torch on a cylinder.  
• Never allow a welding electrode to touch the cylinder.  
• Keep cylinders away from any electrical circuits, including welding circuits.  
• Keep protective cap in place over the valve except when the cylinder is in use.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 8  
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• Use only correct gas shielding equipment designed specifically for the type of  
welding you will do. Maintain this equipment properly.  
• Always protect gas cylinders from heat, being struck, physical damage, slag,  
flames, sparks, and arcs.  
• Always use proper procedures to move cylinders.  
17.  
Use the right tool for the job. Do not attempt to force small equipment to do the  
work of larger industrial equipment. There are certain applications for which this  
Welder was designed. It will do the job better and more safely at the rate for which it  
was intended. Do not modify this Welder, and do not use this Welder for a purpose  
for which it was not intended.  
18.  
19.  
WARnInG! People with pacemakers should consult their physician(s) before  
using this product. Electromagnetic fields in close proximity to a heart pacemaker  
could cause interference to or failure of the pacemaker.  
WARnInG! The warnings and cautions discussed in this manual cannot cover  
all possible conditions and situations that may occur. It must be understood by the  
operator that common sense and caution are factors which cannot be built into this  
product, but must be supplied by the operator.  
20.  
WARnInG! This product, when used for welding and similar applications, pro-  
duces chemicals known to the State of California to cause cancer and birth defects  
(or other reproductive harm).  
(California Health & Safety Code § 25249.5, et seq.)  
sAVE tHEsE InstRUCtIOns  
GROUnDInG  
nOtE:  
this Welder requires the installation of a 3-prong, 220 VAC, polarized,  
twistlock power Cord plug (not included).  
nEMA configuration # L6-30 or equivalent  
the plug must be installed by a certified electrician.  
WARnInG!  
Improperly connecting the grounding wire can result in the risk of electric  
shock. Check with a qualified electrician if you are in doubt as to whether  
the outlet is properly grounded. Do not modify the power cord plug used  
with the tool. never remove the grounding prong from the plug. Do not  
use the tool if the power cord or plug is damaged. If damaged, have it  
repaired by a service facility before use. If the plug will not t the outlet,  
have a proper outlet installed by a qualified electrician.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 9  
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GROUnDED tOOLs:tOOLs WItH tHREE pROnG pLUGs  
1.  
2.  
3.  
Tools marked with “Grounding Required” have a three wire cord and three prong  
grounding plug. The plug must be connected to a properly grounded outlet. If the tool  
should electrically malfunction or break down, grounding provides a low resistance  
path to carry electricity away from the user, reducing the risk of electric shock.  
The grounding prong in the plug is connected through the green wire inside the  
cord to the grounding system in the tool. The green wire in the cord must be the  
only wire connected to the tool’s grounding system and must never be attached to  
an electrically “live” terminal.  
Your tool must be plugged into an appropriate outlet, properly installed by a certi-  
fied electrician and grounded in accordance with all codes and ordinances.  
ExtEnsIOn CORDs  
1.  
An ExtEnsIOn CORD MUst nEVER bE UsED WItH tHIs ItEM. Use of an  
extension cord could result in damage to the item or fire.  
syMbOLOGy  
Double Insulated  
Canadian Standards Association  
Underwriters Laboratories, Inc.  
Volts Alternating Current  
V~  
A
Amperes  
No Load Revolutions per Minute (RPM)  
n xxxx/min.  
0
UnpACKInG  
When unpacking both boxes, check to make sure all the parts shown on the parts  
Lists on pages 28 through 30 are included, in addition to the face shield, wire brush/  
hammer, and strap (for cylinder connection). If any parts are missing or broken, please  
call Harbor Freight Tools at the number shown on the cover of this manual as soon as  
possible.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
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AssEMbLy InstRUCtIOns  
WARnInG! Always turn off theWelder and unplug the unit from its electri-  
cal outlet prior to performing any assembly, maintenance, or service.  
tO AttACH tHE HAnDLE  
Insert the Handle (4) into the Handle Sockets (3). Then attach the Handle Sockets  
to the center top of Side Panel (1), using the four Screws provided.  
fACE sHIELD AssEMbLy  
Attach the handle to the Face Shield by  
lining up the two rectangular tabs on the  
handle with the corresponding holes in the  
Round  
Tab  
face shield and  
1) pressing it upwards  
and then  
2) pressing it forward from the back, lock-  
Handle  
ing the round tab in place.  
Face  
See numbered steps in illustration to the  
Shield  
right.  
tO InstALL A WIRE spOOL  
1.  
2.  
3.  
Lift the Access Panel (12) of the Welder to expose the Wire Feed Assembly.  
Unscrew and remove the Wing Nut (40) and Spool Knob (39).  
Install a 2 lb. Spool (not included) onto  
the Wire Spool Axle (9), making sure  
WELDInG  
WIRE  
spOOL  
the Welding Wire unwinds from the top  
(counterclockwise). Secure it to the shaft  
using the spring underneath and the Knob  
on top.  
4.  
Tighten the Knob (39) until only slight  
resistance is felt when turning the Spool.  
Then, tighten the Wing Nut (40) up against  
spOOL  
KnOb (39)  
WInG  
nUt (40)  
the Knob.  
fIGURE C  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 11  
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tO ROUtE tHE WIRE  
note: When installing wire of different size or composition, you will also need to change  
wire settings, set gun polarity, and, possibly, install gas cylinder. See pages 14-16.  
1.  
IMpORtAnt: Securely hold onto the end  
of the Welding Wire and keep tension on  
it during the following steps. If this is not  
done theWeldingWire will spring backward,  
creating a tangled “bird’s nestand resulting  
in wasted wire. (see figure D.)  
spOOL  
WELDInG  
WIRE  
2.  
Hold the Welding Wire securely while you  
cut enough Wire off the end of the Spool to  
remove all bent and crimped Wire. Make  
sure the cut end has no burrs or sharp  
edges (cut again, if needed). (see figure D.)  
fIGURE D  
3.  
4.  
5.  
Loosen and lower the Tension Adjusting Knob (10b) on the Wire Feed Assembly.  
Then, raise the Swing Arm (10a). (see figure E.)  
Keep tension on the Welding Wire, and guide at least 12 inches of Wire into the  
Wire Feed Leader (10f). (see figure E.)  
Lower the Swing Arm (10a) on the Wire Feed Assembly. Lower and tighten the  
Tension Adjusting Knob (10b). Once the Wire is held in place, you may release it.  
(see figure E.)  
sWInG ARM  
(10a)  
tEnsIOn ADjUstInG KnOb  
(10b)  
sWInG ARM  
(10a)  
WIRE fEED  
LEADER  
(10f)  
WIRE  
WIRE fEED  
LEADER  
(10f)  
tEnsIOn ADjUstInG KnOb  
fIGURE E  
(10b)  
6.  
7.  
Lay the Torch Cable out in a straight line so that the Welding Wire moves through  
it easily. Leave the Access Panel (12) of the Welder open so that the Wire Feed  
Assembly can be observed.  
Remove the Gun Nozzle (15h) and Contact Tip (15g). (see figure f, next page.)  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
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WARnInG!  
ExERCIsE ExtREME CAUtIOn - RIsK Of fIRE AnD/OR ELECtRIC sHOCK!  
the following steps require applying power to theWelder. Do not touch  
anything with thetorch Handle orWeldingWire or an arc will be ignited.  
Do not touch the internal components of the unit while it is plugged in.  
8.  
9.  
Plug the Power Cord (13) into its 220 volt, grounded, electrical outlet. Then, turn  
the Welder On.  
Point the Torch Handle away from all objects. Then, squeeze the Trigger Switch  
(15d) on the Torch Handle until the Welding Wire feeds through the Head Tube  
(15f) of the Torch Handle about 2 inches. If necessary, move the Torch Handle  
slightly in a circular motion to help feed the Welding Wire properly out of the Head  
Tube. (see figure f.)  
10.  
11.  
nOtE: If the Welding Wire does not feed properly, and the Spool is stationary,  
turn the Welder off. Unplug the Welder. Slightly tighten the Tension Adjusting  
Knob (10b) on the Wire Feed Assembly, and rewind the Welding Wire slightly  
before retrying. (see figure E.)  
To check the tension on the Wire Feed Assembly, feed the Welding Wire against a  
piece of scrap wood from 2 to 3 inches away. If the Wire stops instead of bending,  
turn theWelder Off. Unplug the unit from its electrical outlet. Then, slightly tighten  
the Tension Adjusting Knob (10b) on the Wire Feed Assembly. (see figure E.)  
HEAD  
tUbE  
(15f)  
HEAD  
tUbE  
(15f)  
WELDInG  
WIRE  
nOZZLE  
(15h)  
nOZZLE  
(15h)  
COntACt  
tIp  
(15g)  
COntACt  
tIp  
(15g)  
fIGURE f  
12.  
turn the Welder Off, unplug it, and discharge the electrode to ground. Insert  
the Contact Tip (15g) onto the Welding Wire and screw it firmly into the Head Tube  
(15f) of the Torch Handle. Replace the Nozzle (15h), and cut off any excess Weld-  
ing Wire over 1/2 inch. Then, close the Access Panel (12) of the Welder.  
(see figure f.)  
note: When installing wire of a different size or composition, you will also need to change  
wire settings, set the gun polarity, and, possibly, install a gas cylinder. See pages  
14-16.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
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tO CHAnGE WIRE sEttInGs  
1.  
2.  
WARnInG! Make sure to turn off the Welder and unplug it from its electrical  
outlet prior to changing wire settings.  
Open the Access Panel (12) of the Welder to expose the Wire Feed Assembly.  
tEnsIOn  
ADjUstInG  
KnOb  
sWInG ARM  
(10a)  
(10b)  
fEED  
ROLLER  
bRACKEt  
(10k)  
sCREW  
(10l)  
fIGURE G  
3.  
4.  
5.  
6.  
7.  
8.  
Loosen, and lower the Tension Adjusting Knob (10b) on the Wire Feed Assembly.  
Then, raise the Swing Arm (10a). (see figure G.)  
Remove the two Screws (10l) that secure the Feed Roller Bracket (10k) in place.  
Then, remove the Feed Roller Bracket. (see figure G.)  
Install a Wire Feed Roller (11) with the proper groove size facing towards the Inner  
Panel (8) of the welder.  
Replace the Feed Roller Bracket (10k), and secure in place with the Screws.  
(see figure G.)  
Lower the Swing Arm (10a) on the Wire Feed Assembly. Then, lower and tighten  
the Tension Adjusting Knob (10b). (see figure G.)  
Remove the Gun Nozzle (15h) and Contact Tip (15g). Install a Contact Tip that is  
one size larger* than the diameter of Welding Wire used. Then, replace the Gun  
Nozzle. (see figure f, previous page.)  
*This accommodates thermal expansion of the wire.  
9.  
Install the Spool of Welding Wire, and route the Wire to the Torch Gun. Then, test  
and, if necessary, adjust the Wire Feed Assembly as discussed in the previous  
pages of this manual.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 14  
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sEttInG tHE GUn pOLARIty fOR WIRE typE  
1.  
2.  
3.  
Set for Electrode Positive (DCEP) for gas welding with solid-core wire. Positive elec-  
trode (C), negative ground (D). sHOWn In ILLUstRAtIOn, InItIAL sEtUp.  
(see figure H.)  
Set for Electrode Negative (DCEN) for gasless flux core  
wire. Negative electrode (C), positive ground (D).  
(see figure H.)  
C
E
b
When connecting to the weld output terminals, do not  
place anything between the welding Cable Terminals (A  
and C) and their copper connections.  
(see figure H.)  
D
A
4.  
5.  
Always read and follow wire manufacturer’s recom-  
mended polarity.  
A. positive (+) Output terminal  
b. polarity Changeover Label  
C. negative (–) Output terminal  
D. Red Cable  
fIGURE H  
E. black Cable  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 15  
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tO InstALL A GAs CyLInDER  
WARnInG: Maximumcylinderheight is 1feet 7inches (0.5m). Maximumcyl-  
inder weight is 22 lb., including gas. nEVER exceed either of these maximums.  
1.  
2.  
CAUtIOn! Do not use an Argon/Mixed pressure regulator/flow meter with CO2  
shielding gas. To use CO2 shielding gas, you must install a CO2 gas pressure regu-  
lator/flow meter (neither one included).  
Thread the provided strap through the slots on the back of the welder. With assis-  
tance, set the cylinder onto the shelf at the back of the welder.  
3.  
4.  
Secure the cylinder in place with the strap.  
Remove the protective cap from the cylinder. Stand to the side of the cylinder valve,  
and open the valve slightly to blow dust and dirt from the valve. Then, close the  
valve.  
5.  
Make sure the Flow Adjust on the Pressure Regulator/Flow Meter is turned off.  
Then, screw the Pressure Regulator/Flow Meter (not included) firmly onto the cyl-  
inder valve.  
6.  
7.  
Attach the Gas Line (41) to the Pressure Regulator/Flow Meter from the Gas Inlet  
located on the Back Panel (6) of the Welder.  
Adjust the flow rate of the gas by turning the Flow Adjust. The typical flow rate is  
10-30 CFH (cubic feet per hour). Make sure to check the Welding Wire manu-  
facturer’s recommended flow rate.  
WARnInG  
RIsK Of ExpLOsIOn!  
While the Gas Cylinder is attached, this unit must only  
be transported using an appropriate welding cart (not  
included).  
transporting this welder any other way could result in the  
cylinderbeingdamagedorruptured,causingan explosion  
and, potentially, sEVERE pERsOnAL InjURy.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 16  
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OpERAtInG InstRUCtIOns  
bEfOREyOU bEGIn WELDInG  
Good welding requires a high degree of skill and experience. You should practice  
a few sample welds on scrap metal before you begin welding your first project. Ad-  
ditional practice periods are recommended whenever you weld a different thickness  
of material, wire, or weld a different type of connection.  
DUty CyCLE (DURAtIOn Of UsE)  
1.  
CAUtIOn! Avoid damage to the Welder by not leaving the unit on for more than  
the prescribed duty cycle time.  
fIGURE K  
2.  
The duty cycle defines the number of minutes, within a 10 minute period, during  
which a givenWelder can safely produce a particular welding current. for example,  
this Welder, with a 15% duty cycle at 110 Amps (setting Max 2), must be al-  
lowed to rest for at least 8 minutes and 30 seconds after every minute and 30  
seconds of continuous weld at 110 Amps.  
(see figure K.)  
3.  
4.  
Failure to carefully observe duty cycle limitations can easily over stress a Welder’s  
power generation system, contributing to premature Welder failure.  
This Welder is equipped with an internal thermal protection system to help prevent  
over stressing the unit. When the unit overheats, it automatically shuts down, then  
automatically returns to service when it cools down.  
note: Once the unit returns to service, follow a more conservative duty cycle routine to  
help prevent excess wear to the Welder. (see figure K.)  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 17  
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sEttInG Up tHE WELD  
WARnInG!  
before welding, make sure to read and understand all safety  
precautions and warnings discussed on pages 3 through 10.  
1.  
Overload Indicator Light (28): If too much current is drawn from the Welder, the  
Overload Protector will activate. The RED Overload Indicator Light will illuminate  
and the Welder will automatically turn off until it cools down. If this happens, turn  
the Power Switch to its “Offposition and wait approximately 20 minutes.  
(see figure L.)  
2.  
3.  
4.  
Wire speed Control Knob (17): The Scale surrounding the Knob is relative value,  
not wire feed speed. (see figure L.)  
Voltage Controls (18, 19): Adjust theVoltage Controls based on thickness of metal  
being welded. (see figure L.)  
If using solid-core wire, connect and secure an Argon/ CO2 gas hose to the rear of  
the Welder. (If using flux core wire, protective gas is not required.)  
OVERLOAD InDICAtOR  
LIGHt (28)  
pOWER sWItCH  
(19)  
VOLtAGE COntROLs  
(18, 19)  
WIRE spEED  
COntROL KnOb  
(17)  
fIGURE L  
5.  
Securely clamp the Ground Clamp (14) as close as possible to the metal object to  
be welded, or to the metal workbench where the object is mounted and electrically  
connected. (see figure L.)  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 18  
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6.  
nOtE: The workpieces should be firmly held together and in position while welding.  
Use clamps (not included) to hold the workpieces so you can concentrate on the  
job at hand. The distance (if any) between the two workpieces must be controlled  
properly to allow the weld to hold both sides securely while allowing the weld to  
penetrate fully into the joint.  
7.  
8.  
Set the desired welding current (35 to 140 amps) for the type of metal being welded,  
using the Wire Speed Control Knob (17) and Voltage Controls (18, 19).  
(see figure L.)  
Make sure the Power Switch is in its “Offposition. Then plug Power Cord of  
the Welder into a dedicated, 220 VAC, 25 amp line with delayed action type circuit  
breaker or fuse.  
9.  
While holding the Welding Torch (15), with the Welding Wire clearly out of the way  
of any grounded objects, turn the Power Switch to its “On” position.  
10.  
Momentarily squeeze the Trigger (15d) of the Welding Torch (15) to test the wire  
feed speed. If necessary, adjust the speed by turning the Wire Speed Control Knob  
(17). (see figure L.)  
11.  
12.  
Orient yourself on the area to be welded, then place a Face Shield over your  
eyes.  
WARnInG! never look at the ignited arc without AnsI-approved,  
arc-shaded, eye protection in a full face shield. permanent eye  
damage or blindness can occur. skin burns can occur. never  
breathe arc fumes. (see page 8.)  
HOLDInG tHE WELDInG tORCH  
13.  
14.  
Hold the WeldingTorch (15) in one hand and the face shield in the other. If a hands-  
free welding shield is used, then both hands can be used to  
control the Welding Torch.  
The Welding Wire should be directed straight into the joint.  
This gives an angle of 90 degrees (straight up and down) for  
groove (end to end) welds, and an angle of 45 degrees for  
fillet (T-shaped) welds.  
15.  
16.  
The end of the Welding Torch should be tilted so that the  
Welding Wire is angled anywhere in between straight on and  
15 degrees in the direction of the weld. The amount of tilt is  
called the “drag angle”. (see figure M.)  
fIGURE M  
The Welding Wire should extend no more than 1/2” past the  
Nozzle (15h) of the Welding Torch (15). This distance is called “stickout”. (see  
figure M.)  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 19  
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Welding Instructions continued on next page.  
for technical questions, please call 1-800-444-3353;  
troubleshooting section at end of manual.  
SKU 55525  
Page 20  
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17.  
18.  
Set the Wire Speed and Voltage Controls (17, 18, 19) to the recommended start  
settings as shown in the Weld Settings Chart on the next page. (see figure n.)  
Squeeze (and hold) the Trigger Switch (15d) of the Welding Torch (15) and stroke  
the area to be welded with the Welding Wire to ignite the arc.  
a. Never tap the Welding Wire into the welding surface to ignite the arc. This will  
cause the Welding Wire to stick to the workpiece.  
b. For a narrow weld, you can usually draw the Welding Wire in a steady straight  
line. This is called a stringer bead”.  
c. For a wider weld, draw the Welding Wire back and forth across the joint in a  
curve. This is called a “weave bead”.  
note: If too much current is drawn from the Welder, the internal Thermal Overload Protec-  
tor will activate. The Overload Indicator Light (28) will illuminate and the Welder will  
automatically turn off. If this happens, turn the Power Switch to its “Offposition  
and wait 3 to 5 minutes for the unit to cool down. (see figure p.)  
20.  
After a few seconds, stop. Switch off the Welder, and check your progress. Com-  
pare your weld’s appearance with the diagrams and descriptions shown in the “Weld  
Diagnosissection beginning on page 22. After making any necessary adjustments,  
continue the weld while carefully following the DUTY CYCLE guidelines.  
(see figure n.)  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 21  
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WELD DIAGnOsIs  
Weld penetration  
ExCEss OR bURn-tHROUGH  
Weld droops on top and  
underneath, or falls through  
entirely, making a hole.  
pROpER  
Weld is visible underneath and  
bulges slightly on top.  
InADEqUAtE  
Weld does not contact the joint  
fully, just on the surface.  
Cross seCtIons  
pOssIbLE CAUsEs AnD sOLUtIOns  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Excessive material at weld:  
1. Workpieces too thick/close:  
Joint design must allow weld to reach bot-  
tom of groove and allow proper welding  
procedures.  
2. Incorrect welding technique:  
Maintain 1/2” or less stickout.  
Keep arc on leading edge of weld pud-  
dle.  
Reduce wire feed speed.  
2. Overheating:  
Increase welding speed and ensure that  
welding speed is kept steady.  
Weld not Adhering properly  
Gaps present between weld and previous bead or  
between weld and workpiece. see areas below.  
Hold gun at proper angles as stated under  
Holding The Torch on page 19.  
3. Insufficient weld material:  
Increase wire feed speed.  
Cross  
4. Insufficient weld heat:  
seCtIon  
Reduce Welding Speed.  
bend at joint  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Dirty workpiece:  
Make certain that workpiece is clean and  
free from oil, coatings, and other resi-  
dues.  
Cross  
seCtIon  
2. Insufficient weld material:  
pOssIbLE CAUsEs AnD sOLUtIOns  
Increase wire feed speed.  
1. Improper clamping:  
3. Incorrect welding technique:  
Place stringer bead at correct place in joint.  
Adjust workpiece position or weld angle  
to permit proper welding at bottom of  
workpiece.  
Make sure that pieces are clamped se-  
curely in place.  
Make tack welds to help hold pieces.  
2. Excessive heat:  
Pausebrieflyatsideswhenusingweavebead.  
Keep arc on leading edge of weld puddle.  
Hold gun at proper angles as stated under  
Holding The Torch on page 19.  
Weld a small portion and allow to cool  
before proceeding.  
Reduce wire feed speed.  
Increase weld speed.  
for technical questions, please call 1-800-444-3353;  
troubleshooting section at end of manual.  
SKU 55525  
Page 22  
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porosity  
Crooked/wavy bead  
small cavities or holes in the bead.  
top  
top  
VIew  
VIew  
pOssIbLE CAUsEs AnD sOLUtIOns  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. stickout too long:  
1. stickout too long:  
Reduce stickout.  
Reduce stickout.  
2. Inaccurate welding:  
Use two hands or rest hand on steady  
surface.  
2. Dirty workpiece or welding wire:  
Make certain that workpiece and wire are  
both clean and free from oil, coatings, and  
other residues.  
3. Insufficient gas flow at weld:  
Increase flow of shielding gas.  
4. Dirty nozzle:  
Clean nozzle by following the directions in  
the cleaning section of this manual.  
5. Wrong type of shielding gas:  
Use only the correct welding gas for the  
application and wire.  
Excessive spatter  
spatter that is grainy and large.  
fine spatter is normal.  
top  
VIew  
stRIKE tEst  
A test weld on a pIECE Of sCRAp can be tested  
by using the following procedure.  
WEAR AnsI GOGGLEs DURInG tHIs  
pROCEDURE.  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Wire feeding too fast:  
Reduce wire feed speed.  
1. After two scraps have been welded to-  
gether and the weld has cooled, clamp one  
scrap* in a sturdy vise.  
2. Stay clear from underneath while you strike  
the opposite scrap with a heavy hammer,  
preferably a dead-blow hammer.  
3. A good weld will deform but not break.  
A poor weld will be brittle and snap at the  
weld.  
2. stickout too long:  
Reduce stickout.  
3. Dirty workpiece or welding wire:  
Make certain that workpiece and wire are  
both clean and free from oil, coatings, and  
other residues.  
4. Insufficient gas flow at weld:  
Increase flow of shielding gas.  
5. shielding gas being blown away from  
weld area:  
* this test WILL damage the weld it is performed  
on. this test is OnLy an indicator of weld tech-  
nique and is not intended to test working welds.  
Protect the weld area from drafts.  
for technical questions, please call 1-800-444-3353;  
troubleshooting section at end of manual.  
SKU 55525  
Page 23  
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WHEn tHE WELD Is COMpLEtED  
21.  
22.  
Lift theWeldingWire completely away from any grounded object. Set the face shield  
down. Then, turn the Power Switch to its “Offposition.  
Unplug the Power Cord (13) from the electrical outlet. Then, make sure to set the  
Welding Torch (15) on a nonflammable, nonconductive surface.  
23.  
1.  
nOtE: The wire brush/hammer can now be used to clean up the weld.  
CAUtIOn! The weld may still be quite hot, and sparks/chips may fly  
when cleaning. Make sure to continue wearing ANSI-approved safety  
impact eye goggles and other protective wear when cleaning a weld.  
a. The hammer can be used to knock off any excess spatter and to help knock down  
any ridges. Make sure not to damage the weld or material when striking it.  
b. The wire brush can then be used to help remove oxidation and some fine spat-  
ter.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 24  
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InspECtIOn, MAIntEnAnCE, AnD CLEAnInG  
WARnInG!  
before performing any maintenance on the Welder, unplug the  
power Cord (13) from its electrical outlet and allow all components of  
the Welder to completely cool.  
1.  
2.  
3.  
Periodically open the Access Panel (12) from the unit and, using compressed air,  
blow out all dust and debris from the interior.  
Always store the Welder in a clean, dry, safe location out of reach of children and  
other unauthorized people.  
For optimal weld quality, clean and inspect the Contact Tip (15g) and Nozzle (15h)  
before each use, as follows:  
nOZZLE InspECtIOn, CLEAnInG, AnD REpLACEMEnt  
Turn the Nozzle (15h) counterclockwise while pulling to remove.  
Scrub the interior of the Nozzle (15h) clean with a wire brush.  
1.  
2.  
3.  
Examine the end of the Nozzle (15h). The end should be flat and even. If the end is  
uneven, chipped, melted, cracked, or otherwise damaged, the Nozzle will adversely  
effect the weld and should be replaced.  
4.  
Reinstall the Nozzle (15h) after inspecting and cleaning the Contact Tip (15g).  
COntACt tIp InspECtIOn, CLEAnInG, AnD REpLACEMEnt  
Make sure the entire Welding Torch (15) is completely cool before proceeding.  
Remove the Nozzle (15h) as explained above. Then remove the Contact Tip (15g).  
1.  
2.  
3.  
Scrub the exterior of the Contact Tip (15g) clean with a wire brush. Check that the  
Contact Tip is the proper type for the wire size used.  
4.  
Examine the hole at the end of the Contact Tip (15g) for the following problems:  
shape: The hole should be an even circle, and should not be oblong or have any  
bulges in it.  
size: The Contact Tip will decrease in efficiency as the center hole enlarges. A  
Contact Tip that measures 150% or more the original size* should be replaced.  
(*.045” or more for .030tips; .035” or more for .023 tips.)  
5.  
6.  
If any problems are noted with a Contact Tip (15g), have it replaced.  
When inspection and maintenance is completed, reinstall the Contact Tip (15g)  
and Nozzle (15h).  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 25  
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REpLACInG tHE WELDInG tORCH LInER  
1.  
2.  
3.  
Switch welder off, disconnect power, and discharge electrode to ground before  
proceeding.  
Secure welding wire to the spool, cut it near the spool, and remove it from the torch  
and cable.  
Gently twist and slide the Locking Collar (15b) off the torch and onto the Protective  
Sleeve (15a). Slide the Upper Housing (15m) forward and off the Lower Housing  
(15c).  
4.  
Remove the four Screws (10g) that hold the Cable Clamp (10h) in place. Set aside  
the Cable Clamp, Screws, and the Liner Sleeve (10i) underneath the cable clamp.  
5.  
6.  
7.  
8.  
Lay torch cable out straight to allow the cable to twist within the sleeve.  
Press in on the Push-lock Coupler (15i) and remove the Liner from the gun end.  
Install a new Liner and Fitting from the gun end with the end without a Fitting first.  
Attach the Fitting at the end of the Liner (15k) to the Push-lock Coupler (15i) on the  
Switch Body (15e).  
9.  
Slide the Liner Sleeve (10i) back onto the end of the liner. Reinstall the Cable Clamp  
(10h) and Screws (10g). Trim off the Liner that extends past the Clamp.  
10.  
Make sure that all torch parts lay back into place properly including the Protective  
Sleeve (15a), HeadTube (15f), andTrigger (15d). see Assembly Diagram on page  
30. While all parts are properly in place, carefully put the Upper Housing (15m) back  
onto the Lower Housing (15c) and slide back to secure. Slide the Locking Collar  
(15b) back onto the Housings (15c, 15m) and twist to secure.  
11.  
12.  
Check the Torch (15) carefully for proper operation.  
Route the Wire as instructed on page 12.  
pLEAsE READ tHE fOLLOWInG CAREfULLy  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS  
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES  
ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALI-  
FIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE  
ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY  
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED  
AND LICENSEDTECHNICIANS AND NOT BYTHE BUYER.THE BUYER ASSUMES ALL RISK AND LIABIL-  
ITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS  
THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 26  
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pARts LIsts AnD DIAGRAMs  
WIRInG sCHEMAtIC  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
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pARts LIst  
part  
1
Description  
qty.  
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
part  
Description  
qty.  
1
1
2
1
1
1
1
1
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
2
4
2
4
2
2
2
1
1
1
Side Panel  
Hinge  
15g Contact Tip (.8 mm)  
15h Nozzle  
2
3
Handle Socket  
Handle  
15i Push-lock Coupler  
15j Gas Hose  
4
5
Fan  
15k Liner  
6
Back Panel  
Rectifier  
15l Power Cable  
7
15m Upper Housing  
16 Cover  
8
Inner Panel  
Wire Spool Axle  
9
17 Wire Feed Speed Control Knob  
18 1/2 Switch  
10 Wire Feed Mechanism*  
10a Swing Arm  
19 Min/Max Switch  
20 Power Switch (With Light)  
21 Cable Relief, Strain  
22 Front Panel  
10b Tension Adjusting Knob  
10c Tensioning Arm  
10d Tension Spring  
10e Tension Pusher  
10f Wire Feed Leader  
10g Screw  
23 Filter Reactor  
24 Main Transformer  
25 Transformer Carriage  
26 Bottom Plate  
10h Cable Clamp  
10i Liner Sleeve  
27 Temperature Controller  
28 Overload Indicator lamp  
29 Support Shelf of Circuit Board  
30 Wire Feed Speed Circuit Board  
31 Potentiometer  
10j Key  
10k Feed Roller Bracket  
10l Screw  
11 Wire Feed Wheel (0.6 & 0.8 mm)  
12 Access Panel  
32 Knob  
13 Line Cord  
33 Nut, Copper, M6  
34 Washer, Spring, 6  
35 Washer, Copper, Plain, 6  
36 Washer, Insulating, 1  
37 Nut, Copper, M6x35  
38 Washer, Insulating, 2  
39 Spool Knob  
14 Ground Cable With Clamp  
15 Welding Torch/Cable Assembly  
15a Protective Sleeve  
15b Locking Collar  
15c Lower Housing  
15d Trigger  
15e Switch Body  
40 Locking Wing Nut  
41 Gas Line  
15f Head Tube  
*Wire feed mechanism includes parts 10a-10j, & 11  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 28  
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AssEMbLy DIAGRAM  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 29  
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AssEMbLy DIAGRAM (COntInUED)  
Wire feed Mechanism (10)  
10c  
10d  
10b  
10a  
10e  
10g  
10f  
11  
10i  
10h  
10l  
10k  
10j  
for technical questions, please call 1-800-444-3353;  
SKU 55525  
Page 30  
troubleshooting section at end of manual.  
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tROUbLEsHOOtInG  
IMpORtAnt!  
be CERtAIn to shut off the Welder, disconnect it from power, and discharge the torch to  
ground before adjusting, cleaning, or repairing the unit.  
Wire feed motor runs but wire does not feed properly  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Insufficient wire feed pressure:  
Increase wire feed pressure properly - follow instructions on page 12-13.  
2. Incorrect wire feed roll size:  
Replace with the proper one - follow the wire settings instructions on page 14.  
3. Damaged torch, cable, or liner assembly:  
Have a qualified technician inspect these parts and replace as necessary.  
Wire creates a bird’s nest During operation  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Excess wire feed pressure:  
Adjust wire feed pressure properly - follow instructions on page 12-13.  
2. Incorrect contact tip size:  
Replace with the proper tip for the wire size used.  
3. Gun end not inserted into drive housing properly:  
Loosen gun securing bolt and push gun end into housing just enough so that it does  
not touch wire feed mechanism.  
4. Damaged liner:  
Have a qualified technician inspect and repair/replace as necessary.  
Welding arc not stable  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Wire not feeding properly:  
See first troubleshooting section above.  
2. Incorrect contact tip size:  
Replace with the proper tip for the wire size used.  
3. Incorrect wire feed speed:  
Adjust wire feed speed to achieve a more stable arc.  
4. Loose torch cable or ground cable:  
Check to ensure that all connections are tight.  
5. Damaged torch or loose connection within torch:  
Have a qualified technician inspect and repair/replace as necessary.  
If the steps above do not solve the problem or if the repairs involved are too  
complex, contact a qualified technician.  
SKU 55525  
for technical questions, please call 1-800-444-3353.  
Page 31  
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tROUbLEsHOOtInG (continued)  
IMpORtAnt!  
be CERtAIn to shut off the Welder, disconnect it from power, and discharge the torch to  
ground before adjusting, cleaning, or repairing the unit.  
Welder does not function when switched on  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. tripped thermal protection device:  
Shut the welder’s switch to off and allow it to cool for at least 20 minutes.  
Reduce duration or frequency of welding periods to help reduce wear on the welder.  
Refer to Duty Cycle section on page 17.  
2. faulty or improperly connected switch body (15e):  
Have a technician check and secure/replace Switch Body (15e).  
3. Internal fuse blown:  
Have a qualified technician check/replace.  
Weak Arc strength  
pOssIbLE CAUsE AnD sOLUtIOn  
Incorrect line voltage:  
Check the line voltage and, if insufficient, have a licensed electrician remedy the situ-  
ation.  
Wire feeds, but arc does not ignite  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Improper ground connection:  
Make certain that the workpiece is contacted properly by the Ground Clamp and that  
the workpiece is properly cleaned near the ground clamp and the welding location.  
2. Improperly sized or excessively worn Contact tip (15g):  
Verify that Contact Tip (15g) is the proper size for the welding wire used. Check that  
the hole in the tip is not deformed or enlarged. Also, check that the tip is not dirty; this  
would prevent a good connection. If needed, replace Contact Tip (15g) with proper  
size and type.  
If the steps above do not solve the problem or if the repairs involved are too  
complex, contact a qualified technician.  
SKU 55525  
for technical questions, please call 1-800-444-3353.  
Page 32  
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tROUbLEsHOOtInG (continued)  
IMpORtAnt!  
be CERtAIn to shut off the Welder, disconnect it from power, and discharge the torch to  
ground before adjusting, cleaning, or repairing the unit.  
Wire feeds, but shielding gas does not flow  
pOssIbLE CAUsEs AnD sOLUtIOns  
1. Empty Gas Cylinder:  
Check gas cylinder.  
2. nozzle plugged:  
Clean nozzle. If damaged, replace.  
3. Regulator or cylinder valve closed:  
Make sure both valves are adjusted properly.  
4. Gas line blocked:  
Check external hose, and hose within Torch cable.  
5. Gas solenoid broken or not connected properly:  
Have a qualified technician check/replace.  
WARRAnty  
LIMIteD 90 DAy/1yeAr wArrAnty  
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,  
and warrants to the original purchaser that for a period of ninety days from date of purchase that the torch, liner,  
wire feed mechanism (if applicable), welding clamps, electrode holders, cables and accessories packed with the  
welder are free of defects in materials and workmanship. This Limited 90 Day/1Year Warranty shall not apply  
to consumable parts such as tips, welding wire, and gas nozzles. Harbor Freight Tools also warrants to the  
original purchaser, for a period of one year from date of purchase, that the transformer and rectifier are free from  
defects in materials and workmanship.This warranty does not apply to damage due directly or indirectly to misuse,  
abuse, negligence or accidents; repairs or alterations outside our facilities; or to lack of maintenance. We shall in  
no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential  
damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental  
or consequential damages, so the above limitation of exclusion may not apply to you. THiS WarranTy iS  
expreSSly in lieu oF all oTHerWarranTieS, expreSS or implied, inCludingTHeWarranTieS  
oF merCHanTabiliTy and FiTneSS.  
To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid.  
proof of purchase date and an explanation of the complaint must accompany the merchandise. if our inspection  
verifies the defect, we will either repair or replace the product at our election or we may elect to refund the purchase  
price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our  
expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of  
our warranty, then you must bear the cost of returning the product.  
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.  
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
If the steps above do not solve the problem or if the repairs involved are too  
complex, contact a qualified technician.  
SKU 55525  
for technical questions, please call 1-800-444-3353.  
Page 33  
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