Manual For The 63621 Omni Pro™ 220 Multiprocess Welder With 120/240 Volt Input

User Manual: Manual for the 63621 OmniPro™ 220 Multiprocess Welder with 120/240 Volt Input OmniPro™ 220 Multiprocess Welder with 120/240 Volt Input

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Page Count: 48

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Owners Manual & Safety Instructions
Save This Manual%Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 18a
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-380-0318 as soon as possible.
Copyright© 2017 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.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly an d se rv ic e may n ot b e in cl uded.
;*,9%$."#%5,$*(",7%+*2&(*%'#"83%$."#%/(&9'4$1%
<,"7'(*%$&%9&%#&%4,8%(*#'7$%"8%#*("&'#%"8='(>1%
?@!6%ABC?%D@EF@G1
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Safety ........................................................................2
Specifications ............................................................7
Controls .....................................................................8
MIG / Flux-Cored Wire Welding .................................10
TIG / Stick Welding ....................................................24
Welding Tips .............................................................34
Maintenance .............................................................41
Parts List and Diagram .............................................46
Warranty ...................................................................48
P@;ECER%?ODWVG?%@EQ%Q6<CECACVE?
This is the Safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all Safety messages that
follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
CDSV;A@EA%?@<6AO%CE<V;D@ACVE
;*,9%,77%?,2*$>%),(8"83#%,89%"8#$('4$"&8#1%%
<,"7'(*%$&%2&77&)%$.*%),(8"83#%,89%"8#$('4$"&8#%5,>%(*#'7$%"8%*7*4$("4%#.&4XI%2"(*%,890&(%#*("&'#%"8='(>1%%%
?,Y*%,77%),(8"83#%,89%"8#$('4$"&8#%2&(%2'$'(*%(*2*(*84*1
R*8*(,7%?,2*$>
S;VA6TA%>&'(#*72%,89%&$.*(#1%%;*,9%,89%'89*(#$,89%$."#%"82&(5,$"&81
1. W*2&(*%'#*I%(*,9%,89%'89*(#$,89%
manufacturer′s instructions,
Material Safety Data Sheets (MSDS′s),
employer′s Safety practices, and ANSI Z49.1.
2. U**/%&'$%&2%(*,4.%&2%4."79(*81%%%
Keep children and bystanders away while operating.
3. S7,4*%$.*%)*79*(%&8%,%#$,+7*%7&4,$"&8%+*2&(*%'#*1%%%
If it falls while plugged in, severe injury,
electric shock, or fire may result.
4. Q&%8&$%&Y*((*,4.1%%%
U**/%/(&/*(%2&&$"83%,89%+,7,84*%,$%,77%$"5*#1
5. ?$,>%,7*($I%),$4.%).,$%>&'%,(*%9&"83%,89%'#*%
4&55&8%#*8#*%).*8%&/*(,$"83%,%)*79*(1%%
Q&%8&$%'#*%,%)*79*(%)."7*%>&'%,(*%$"(*9%&(%'89*(%
$.*%"827'*84*%&2%9('3#I%,74&.&7%&(%5*9"4,$"&81
A moment of inattention while operating welders
may result in serious personal injury.
6. @Y&"9%'8"8$*8$"&8,7%#$,($"831%%Make sure you are
prepared to begin work before turning on the Welder.
7. E*Y*(%7*,Y*%$.*%P*79*(%'8,$$*89*9%)."7*%
*8*(3"Z*91%Turn power off if you have to leave.
8. A.*%),(8"83#I%/(*4,'$"&8#I%,89%"8#$('4$"&8#%
9"#4'##*9%"8%$."#%"8#$('4$"&8%5,8',7%4,88&$%
4&Y*(%,77%/&##"+7*%4&89"$"&8#%,89%#"$',$"&8#%
$.,$%5,>%&44'(1%%It must be understood by the
operator that common sense and caution are
factors which cannot be built into this product,
but must be supplied by the operator.
Page 3<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
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INHALATION HAZARD:%
P*79"83%,89%S7,#5,%T'$$"83%/(&9'4*%$&["4%2'5*#1
1. 6[/&#'(*%$&%)*79"83%&(%4'$$"83%*[.,'#$%
2'5*#%4,8%"84(*,#*%$.*%("#X%&2%9*Y*7&/"83%
4*($,"8%4,84*(#I%#'4.%,#%4,84*(%&2%$.*%
7,(>8[%,89%7'83%4,84*(1 Also, some diseases
that may be linked to exposure to welding
or plasma cutting exhaust fumes are:
Early onset of Parkinson’s Disease
Heart disease
Ulcers
Damage to the reproductive organs
Inflammation of the small intestine or stomach
Kidney damage
Respiratory diseases such as
emphysema, bronchitis, or pneumonia
Use natural or forced air ventilation and wear
a respirator approved by NIOSH to protect
against the fumes produced to reduce the
risk of developing the above illnesses.
2. Q&%8&$%'#*%8*,(%9*3(*,#"83%&(%
/,"8$"83%&/*(,$"&8#1
3. U**/%.*,9%&'$%&2%2'5*#1%%
Do not breathe exhaust fumes.
4. F#*%*8&'3.%Y*8$"7,$"&8I%*[.,'#$%,$%,(4I%&(%
+&$.I%$&%X**/%2'5*#%,89%3,#*#%2(&5%+(*,$."83%
Z&8*%,89%3*8*(,7%,(*,1%%If engineering controls
are not feasible, use an approved respirator.
5. P&(X%"8%,%4&82"8*9%,(*,%&87>%"2%"$%
"#%)*77KY*8$"7,$*9I%&(%)."7*%)*,("83%
,8%,"(K#'//7"*9%(*#/"(,$&(1
6. B,Y*%,%(*4&38"Z*9%#/*4",7"#$%"8%
C89'#$(",7%B>3"*8*%&(%68Y"(&85*8$,7%?*(Y"4*#%
4.*4X%$.*%&/*(,$"&8%,89%,"(%H',7"$>%
,89%5,X*%(*4&55*89,$"&8#%
2&(%$.*%#/*4"2"4%)*79"83%#"$',$"&81%%
Follow OSHA guidelines for
Permissible Exposure Limits (PEL’s) and
the American Conference of Governmental
Industrial Hygienists recommendations for
Threshold Limit Values (TLV’s) for fumes and gases.
@(4%;,>%?,2*$>
@;T%;@O?%4,8%"8='(*%*>*#%,89%+'(8%#X"81
1. P*,(%@E?CK,//(&Y*9%)*79"83%*>*%/(&$*4$"&8%
2*,$'("83%,$%7*,#$%,%8'5+*(%JN%#.,9*%7*8#%(,$"831
2. P*,(%7*,$.*(%7*33"83#I%2"(*%(*#"#$,8$%#.&*#%
&(%+&&$#%9'("83%'#*1%%Do not wear pants with
cuffs, shirts with open pockets, or any clothing
that can catch and hold molten metal or sparks.
3. U**/%47&$."83%2(**%&2%3(*,#*I%&"7I%
#&7Y*8$#I%&(%,8>%27,55,+7*%#'+#$,84*#1%%
Wear dry, insulating gloves and protective clothing.
4. P*,(%,8%,//(&Y*9%.*,9%4&Y*("83%$&%/(&$*4$%
$.*%.*,9%,89%8*4X1%Use aprons, cape, sleeves,
shoulder covers, and bibs designed and
approved for welding and cutting procedures.
5. P*,(%,8%,//(&Y*9%)*79"83%=,4X*$%&(%7&83%#7**Y*#%
$&%/(&$*4$%2&(*,(5#%2(&5%(,9",$"&8%+'(8#1%
6. P.*8%)*79"8304'$$"83%&Y*(.*,9%&(%"8%4&82"8*9%
#/,4*#I%)*,(%27,5*%(*#"#$,8$%*,(%/7'3#%&(%
*,(%5'22#%$&%X**/%#/,(X#%&'$%&2%*,(#1
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1. A'(8%&22I%9"#4&88*4$%/&)*(I%,89%
9"#4.,(3*%*7*4$(&9*%$&%3(&'89%+*2&(*%#*$$"83%
9&)8%$&(4.0*7*4$(&9*%.&79*(%,89%+*2&(*%#*(Y"4*1
2. Q&%8&$%$&'4.%*8*(3"Z*9%*7*4$("4,7%/,($#1%%
Wear dry, insulating gloves. Do not touch electrode
holder, electrode, welding torch, or welding wire with
bare hand. Do not wear wet or damaged gloves.
3. T&88*4$%$&%3(&'89*9I%R<TCK/(&$*4$*9%
/&)*(%#'//7>%&87>1
4. Q&%8&$%'#*%8*,(%),$*(%&(%9,5/%&+=*4$#1
5. S*&/7*%)"$.%/,4*5,X*(#%#.&'79%4&8#'7$%$.*"(%
physician(s) before use. Electromagnetic fields
in close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure.
6. Q&%8&$%*[/&#*%)*79*(#%$&%(,"8%&(%)*$%4&89"$"&8#1%%%
Water entering a welder will increase
the risk of electric shock.
7. Q&%8&$%,+'#*%$.*%4&(91%%E*Y*(%'#*%$.*%4&(9%
2&(%4,((>"83I%/'77"83%&(%'8/7'33"83%$.*%)*79*(1%%
U**/%4&(9%,),>%2(&5%.*,$I%&"7I%#.,(/%*93*#%
&(%5&Y"83%/,($#1%%Damaged or entangled
cords increase the risk of electric shock.
8. Q&%8&$%'#*%&'$9&&(#1
9. C8#'7,$*%>&'(#*72%2(&5%$.*%)&(X/"*4*%,89%
3(&'891%Use nonflammable, dry insulating
material if possible, or use dry rubber mats,
dry wood or plywood, or other dry insulating
material large enough to cover your full
area of contact with the work or ground.
10. ABC?%P6GQCER%D@TBCE6%DF?A%W6%
TVEE6TA6Q%AV%SVP6;%?VF;T6%CE%
@TTV;Q@ET6%PCAB%@SSGCT@WG6%
6G6TA;CT@G%TVQ6?1
<"(*%?,2*$>
@;T%@EQ%?G@R%4,8%4,'#*%2"(*1
1. T7*,(%,),>%&(%/(&$*4$%27,55,+7*%&+=*4$#1%%%
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.
2. U**/%@WTK$>/*%2"(*%*[$"83'"#.*(%8*,(%
)&(X%,(*,%,89%X8&)%.&)%$&%'#*%"$1
3. D,"8$,"8%,%#,2*%)&(X"83%*8Y"(&85*8$1%%%
Keep the work area well lit.
Make sure there is adequate
surrounding workspace. Keep the work area free
of obstructions, grease, oil, trash, and other debris.
4. Q&%8&$%&/*(,$*%)*79*(#%"8%,$5&#/.*(*#%
4&8$,"8"83%9,83*(&'#7>%(*,4$"Y*%&(%
27,55,+7*%7"H'"9#I%3,#*#I%Y,/&(#I%&(%9'#$1%%
Provide adequate ventilation in work areas
to prevent accumulation of such substances.
Welders create sparks which may ignite flammable
substances or make reactive fumes toxic.
5. C2%)&(X"83%&8%,%5*$,7%),77I%4*"7"83I%*$41I%
/(*Y*8$%"38"$"&8%&2%4&5+'#$"+7*#%&8%$.*%
&$.*(%#"9*%+>%5&Y"83%$.*%4&5+'#$"+7*#%$&%,%
#,2*%7&4,$"&81 If relocation of combustibles 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.
6. Q&%8&$%)*79%&(%4'$%&8%5,$*(",7#%.,Y"83%
,%4&5+'#$"+7*%4&,$"83%&(%4&5+'#$"+7*%
"8$*(8,7%#$('4$'(*I%,#%"8%),77#%&(%4*"7"83#I%)"$.&'$%
,8%,//(&Y*9%5*$.&9%2&(%*7"5"8,$"83%$.*%.,Z,(91
7. Q&%8&$%9"#/&#*%&2%.&$%#7,3%"8%4&8$,"8*(#%
.&79"83%4&5+'#$"+7*%5,$*(",7#1
8. @2$*(%)*79"83I%5,X*%,%$.&(&'3.%*[,5"8,$"&8%
2&(%*Y"9*84*%&2%2"(*1%%Be aware that easily
visible smoke or flame may not be present
for some time after the fire has started.
9. Q&%8&$%,//7>%.*,$%$&%,%4&8$,"8*(%$.,$%.,#%.*79%
,8%'8X8&)8%#'+#$,84*%&(%,%4&5+'#$"+7*%
5,$*(",7%).&#*%4&8$*8$#I%).*8%.*,$*9I%
4,8%/(&9'4*%27,55,+7*%&(%*[/7&#"Y*%Y,/&(#1%%
Clean and purge containers before applying heat.
Vent closed containers, including castings,
before preheating, welding, or cutting.
Page 5<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
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1. Q&%8&$%'#*%$.*%)*79*(%"2%$.*%#)"$4.%9&*#%8&$%$'(8%
"$%&8%,89%&221%%Any welder that cannot be controlled
with the switch is dangerous and must be repaired.
2. Q"#4&88*4$%$.*%/7'3%2(&5%$.*%/&)*(%
#&'(4*%+*2&(*%5,X"83%,8>%,9='#$5*8$#I%
4.,83"83%,44*##&("*#I%&(%#$&("83%)*79*(#1%%
Such preventive Safety measures reduce the
risk of starting the welder accidentally.
3. S(*Y*8$%'8"8$*8$"&8,7%#$,($"831%
68#'(*%$.*%#)"$4.%"#%"8%$.*%&22K
/&#"$"&8%+*2&(*%4&88*4$"83%$&%/&)*(%
#&'(4*%&(%5&Y"83%$.*%)*79*(1 Carrying
or energizing welders that have the
switch on invites accidents.
4. ?$&(*%"97*%)*79*(#%&'$%&2%$.*%(*,4.%&2%
4."79(*8%,89%9&%8&$%,77&)%/*(#&8#%'82,5"7",(%
)"$.%$.*%)*79*(%&(%$.*#*%"8#$('4$"&8#%$&%
&/*(,$*%$.*%)*79*(1%%Welders are dangerous
in the hands of untrained users.
5. F#*%$.*%)*79*(%,89%,44*##&("*#%"8%
,44&(9,84*%)"$.%$.*#*%"8#$('4$"&8#I%$,X"83%
"8$&%,44&'8$%$.*%)&(X"83%4&89"$"&8#%,89%
$.*%)&(X%$&%+*%/*(2&(5*91 Use of the welder
for operations different from those intended
could result in a hazardous situation.
6. Q&%8&$%'#*%$.*%)*79*(%2&(%/"/*%$.,)"831
D,"8$*8,84*
1. D,"8$,"8%)*79*(#1%%T.*4X%2&(%5"#,7"385*8$%&(%
+"89"83%&2%5&Y"83%/,($#I%+(*,X,3*%&2%/,($#%
,89%,8>%&$.*(%4&89"$"&8%$.,$%5,>%,22*4$%$.*%
)*79*(\#%&/*(,$"&81%%C2%9,5,3*9I%.,Y*%$.*%
)*79*(%(*/,"(*9%+*2&(*%'#*1 Many accidents
are caused by poorly maintained welders.
2. B,Y*%>&'(%)*79*(%#*(Y"4*9%+>%,%H',7"2"*9%
(*/,"(%/*(#&8%'#"83%&87>%"9*8$"4,7%
(*/7,4*5*8$%/,($#1%%This will ensure that
the Safety of the welder is maintained.
3. D,"8$,"8%7,+*7#%,89%8,5*/7,$*#%&8%$.*%P*79*(1%%%
These carry important information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
4. F8/7'3%+*2&(*%5,"8$*8,84*1%Unplug the Welder
from its electrical outlet before any inspection,
maintenance, or cleaning procedures.
R,#%?."*79*9%P*79"83%K%T>7"89*(%?,2*$>
T>7"89*(#%4,8%*[/7&9*%).*8%9,5,3*91
1. Q&%8&$%)*79%&8%,%/(*##'("Z*9%&(%47&#*9%4>7"89*(1
2. Q&%8&$%,77&)%,8%*7*4$(&9*%.&79*(I%
*7*4$(&9*I%)*79"83%$&(4.I%&(%)*79"83%
)"(*%$&%$&'4.%$.*%4>7"89*(1
3. U**/%4>7"89*(#%,),>%2(&5%,8>%*7*4$("4,7%4"(4'"$#I%
"847'9"83%)*79"83%4"(4'"$#1
4. U**/%/(&$*4$"Y*%4,/%"8%/7,4*%&Y*(%$.*%Y,7Y*%
*[4*/$%).*8%$.*%4>7"89*(%"#%"8%'#*1
5. F#*%&87>%4&((*4$%3,#%#."*79"83%*H'"/5*8$%
9*#"38*9%#/*4"2"4,77>%2&(%$.*%$>/*%&2%)*79"83%
>&'%)"77%9&1%%Maintain this equipment properly.
6. S(&$*4$%3,#%4>7"89*(#%2(&5%.*,$I%+*"83%#$('4XI%
/.>#"4,7%9,5,3*I%#7,3I%27,5*#I%#/,(X#I%,89%,(4#1
7. F#*%/(&/*(%/(&4*9'(*#%$&%5&Y*%4>7"89*(#1
%?@!6%AB6?6%CE?A;FTACVE?1
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Wire Feed (Speed)
Workpiece Ground Cable
Torch Cable
Overheat Shutdown Indicator
Cooling Fan
Housing Ground Point
!@TVolts Alternating Current
@Amperes
VT! Open Circuit Voltage
U!@ Kilovolt Amperes
(Volts / 1000 * Amperes)
CSD Inches Per Minute
@PRAmerican Wire Gauge
Electric Shock Hazard.
Do not touch energized parts.
Inhalation Hazard.
Keep head out of fumes
and use proper ventilation.
Read manual before
setup and/or use.
Fire Hazard.
Keep flammable materials
away during welding. Spatter
can cause accidental fires.
Arc Ray Hazard.
Wear welding helmet with
properly rated filter lens.
Pacemaker Hazard.
Welding processes may
interfere with pacemakers.
Consult doctor before use.
R(&'89"83
AV%S;6!6EA%6G6TA;CT%?BVTU%@EQ%Q6@AB%%
<;VD%CETV;;6TA%R;VFEQCER%PC;6%TVEE6TACVE-%
T.*4X%)"$.%,%H',7"2"*9%*7*4$("4",8%"2%>&'%,(*%"8%9&'+$%,#%$&%).*$.*(%$.*%&'$7*$%"#%
/(&/*(7>%3(&'89*91%%Q&%8&$%'#*%$.*%)*79*(%"2%$.*%/&)*(%4&(9%&(%/7'3%"#%9,5,3*91%%C2%9,5,3*9I%
.,Y*%"$%(*/,"(*9%+>%,%#*(Y"4*%2,4"7"$>%+*2&(*%'#*1%%C2%$.*%/7'3%)"77%8&$%2"$%$.*%&'$7*$I%.,Y*%,%/(&/*(%&'$7*$%
"8#$,77*9%+>%,%H',7"2"*9%*7*4$("4",8I%9&%8&$%'#*%,9,/$*(%/7'3#1
1. The green wire inside the cord is connected to
the grounding system in the Welder. The green
wire in the cord must be the only wire connected
to the Welder’s grounding system and must
never be attached to an electrically “live” terminal.
Never leave the grounding wire disconnected
or modify either Power Cord Plug in any way.
2. Make sure the tool is connected to an outlet having
the same configuration as the plug. If the tool must
be reconnected for use on a different type of electric
circuit, the reconnection should be made by qualified
service personnel; and after reconnection, the tool
should comply with all local codes and ordinances.
6[$*8#"&8%T&(9#
Q&%8&$%'#*%,8%*[$*8#"&8%4&(9%&8%$."#%)*79*(1
;*/7,4*5*8$%T&(9#
1. F#*%&87>%&8*%&2%$.*%#'//7"*9%/&)*(%4&(9#%2&(%
$."#%)*79*(%&(%,8%"9*8$"4,7%(*/7,4*5*8$%4&(91
2. Q&%8&$%"8#$,77%,%$."88*(%&(%7&83*(%
4&(9%&8%$."#%)*79*(1
3. Q&%8&$%/,$4.%4&(9#%&2%,8>%7*83$.%
$&3*$.*(%2&(%$."#%"$*5I%/,$4.*#%5,>%,77&)%
5&"#$'(*%$&%/*8*$(,$*%$.*%"8#'7,$"&8I%
(*#'7$"83%"8%*7*4$("4%#.&4X1
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DCR
Power Input 120 VAC%0%60 Hz 240 VAC / 60 Hz
Current Input at Output 20.8 A at 100 A 25.5 A at 200 A
Welding Current Range 30 –140 A 30 –220 A
Rated Duty Cycles 40% @ 100 A
100% @ 75 A
25% @ 200 A
100% @ 115 A
Maximum OCV 78 VDC
Weldable Materials Mild Steel, Stainless Steel
Aluminum (with optional Spool Gun)
Welding Wire Capacity Solid Core: 0.025" / 0.030" / 0.035"
Flux Cored: 0.030" / 0.035" / 0.045"
Wire Speed 50 – 500 IPM
Wire Spool Capacity Up to 12 lb spool
ACR
Power Input 120 VAC / 60 Hz 240 VAC / 60 Hz
Current Input at Output 20.6 A at 125 A 15.6 A at 175 A
Welding Current Range 10 A –125 A 10 A –175 A
Rated Duty Cycles 40% @ 125 A
100% @ 90 A
30% @ 175 A
100% @ 105 A
Maximum OCV 78VDC
Weldable Materials Mild Steel, Stainless Steel, Chrome Moly
?$"4X
Power Input 120 VAC / 60 Hz 240 VAC / 60 Hz
Current Input at Output 19.5 A at 80 A 23.7 A at 175 A
Welding Current Range 10 A – 80 A 10 A –175 A
Rated Duty Cycles 40% @ 80 A
100% @ 60 A
25% @ 175 A
100% @ 100 A
Maximum OCV 78VDC
Weldable Materials Mild Steel, Stainless Steel
Page 8 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
T&8$(&7#
<(&8$%S,8*7%T&8$(&7#
P"(*%<**9%
S&)*(%T,+7*
S&)*(%
?)"$4.
GTQ%
Q"#/7,>
;"3.$%
U8&+
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U8&+
T&8$(&7%
U8&+
B&5*%
W'$$&8
W,4X%
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?/&&7%R'8%
R,#%V'$7*$
MIG Gun /
?/&&7%R'8%
T,+7*%?&4X*$%
E*3,$"Y*%
?&4X*$
S&#"$"Y*%
?&4X*$
?$&(,3*%
T&5/,($5*8$
E&$*- When using an optional Spool Gun (sold separately), connect the
Spool Gun gas hose to the Spool Gun Gas Outlet.
Page 9<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
C8$*("&(%T&8$(&7#
T&79%P"(*%
<**9%?)"$4.
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?&4X*$
Page 10 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
1. A'(8%$.*%S&)*(%?)"$4.%V<<%,89%'8/7'3%
$.*%P*79*(%+*2&(*%/(&4**9"831
2. Pull up on the Door Latch,
then open the Door.
3. JK]%S&'89%P"(*%?/&&7%C8#$,77,$"&8-
Remove the Wingnut and Spacer. If
replacing a Spool, remove the old Spool
and all remaining wire from the liners.
4. Place the new Wire Spool over the Spool Spindle
and against the Spool Brake Pad as illustrated.
A&%/(*Y*8$%)"(*%2**9%/(&+7*5#I%#*$%$.*%
?/&&7%#&%$.,$%"$%)"77%'8)"89%47&4X)"#*1
5. Replace the Spacer over the
Spool Spindle and secure Spool
in place with the Wingnut.
E&$"4*- If Wire Spool can spin freely, Wingnut is too
loose. This will cause the welding wire to unravel and
unspool which can cause tangling and feeding problems.
S&)*(%
?)"$4.
Q&&(%
G,$4.
Q&&(
P*79*(%
P,77
P"838'$
JK]%7+%%
P"(*%?/&&7
?/&&7%
W(,X*%S,9
?/,4*(
?/&&7%
?/"897*
JK]%7+%?/&&7%G&,9"83
MIG / Flux-Cored Wire Welding
;*,9%$.*%6EAC;6%CDSV;A@EA%?@<6AO%CE<V;D@ACVE%#*4$"&8%,$%$.*%+*3"88"83%&2%$."#%5,8',7%
"847'9"83%,77%$*[$%'89*(%#'+.*,9"83#%$.*(*"8%+*2&(*%#*$%'/%&(%'#*%&2%$."#%/(&9'4$1
AV%S;6!6EA%?6;CVF?%CE^F;O%<;VD%@TTCQ6EA@G%VS6;@ACVE-%
A'(8%$.*%S&)*(%?)"$4.%&22%,89%'8/7'3%$.*%P*79*(%+*2&(*%#*$'/1
E&$*-%Remove the protective foam and cardboard from the Welder before setup.
Wire Spool Installation / Wire Setup
Page 11<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
6. JNKJ]%S&'89%P"(*%?/&&7%C8#$,77,$"&8-%
Remove the Wingnut and Spacer. If
replacing a Spool, remove the old Spool
and all remaining wire from the liners.
7. Place the Spool Adapter over the Spool Spindle
and against the Spool Brake Pad as illustrated.
8. Place the new Wire Spool over the Adapter and
line up pin on Adapter with hole in Spool.
A&%/(*Y*8$%)"(*%2**9%/(&+7*5#I%#*$%$.*%
?/&&7%#&%$.,$%"$%)"77%'8)"89%47&4X)"#*1
9. Replace the Spacer over the Spool Spindle
and secure Spool in place with the Wingnut.
E&$"4*- If Wire Spool can spin freely, Wingnut
is too loose. This will cause the welding
wire to unravel and unspool which can
cause tangling and feeding problems.
10. Screw the Spool Knob into the Spool Adapter.
11. Turn the Feed Tensioner knob counterclockwise to
loosen it enough to pull it down to remove tension.
The spring-loaded Idler Arm will move up as shown.
P*79*(%
P,77
?/&&7%
W(,X*%S,9
JNKJ]%7+%%
?/&&7%
@9,/$*(
JNKJ]%7+%?/&&7%G&,9"83
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JNKJ]%7+%%
P"(*%?/&&7
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?/&&7%U8&+
P"(*%
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"8%$."#%
9"(*4$"&8
C97*(%@(5
<**9%A*8#"&8*(
Page 12 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
12. <**9%;&77*(%C8#$('4$"&8#-%
Check that the Feed Roller is correct for the
type of wire being used (solid core or flux-
cored) and that it is turned to properly match
the wire size marked on the Wire Spool:
a. Unscrew the Feed Roller Knob
counterclockwise.
b. Remove the Feed Roller Knob
to expose the Feed Roller.
c. Flip or replace the Feed Roller as needed
and confirm that it is the correct Roller
for the type of wire being used and that
$.*%8'5+*(%#.&)"83%"#%$.*%#,5*%,#%
$.*%)"(*%9",5*$*(%&8%$.*%?/&&71
d. Screw the Feed Roller Knob back into
place to secure the Feed Roller.
<**9%;&77*(%
U8&+
<**9%
;&77*(%
@
W
T
Q
N1NMN%0%N1NM_%
3(&&Y*
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3(&&Y*
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3(&&Y*
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Page 13<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
13. Loosen the Knob on the Wire Feed
mechanism, then insert the Gun Cable
Connector through the hole on the Welder
front and into the socket on the Wire Feed.
14. Ensure that the Gun Cable Connector
is fully inserted into the socket on
the Wire Feed mechanism as shown,
then tighten the Knob securely.
If Connector is not fully inserted, the gas
connection will leak, preventing shielding
gas from reaching the welding arc.
EVACT6- To prevent damage, do
not overtighten the Knob.
15. Insert the Wire Feed Control Cable through
the hole on the Welder front and connect it
to the Wire Feed Control Socket inside the
machine, then tighten the lock ring on the Cable
plug. Note that the plug on the Cable fits into
the Socket in one specific orientation only.
16. QT6E%Q"(*4$%T'((*8$%67*4$(&9*%
E*3,$"Y*%P"(*%?*$'/%2&(%<7'[KT&(*9%
(gasless) welding:
Plug Ground Clamp Cable into Positive (`)
Socket. Plug Wire Feed Power Cable
into Negative (
a
) Socket. Twist cables
clockwise all the way to lock in place.
R'8%T,+7*%
T&88*4$&(
Incorrect – Connector not fully inserted
P"(*%<**9%
D*4.,8"#5
U8&+
Correct – Connector fully inserted
P"(*%
<**9%
T&8$(&7%
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"8%S&#"$"Y*%?&4X*$
P"(*%<**9%
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E*3,$"Y*%?&4X*$
QT6E%%
Flux-Cored (Gasless)
S&7,("$>%?*$'/
Page 14 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
17. QT6S%Q"(*4$%T'((*8$%67*4$(&9*%S&#"$"Y*%P"(*%
Setup for Solid Core (gas shielded) welding:
a. Plug Ground Clamp Cable into Negative (
a
)
Socket. Plug Wire Feed Power Cable
into Positive (`) Socket. Twist cables
clockwise all the way to lock in place.
b. Determine which type of shielding
gas would be appropriate for
the welding you will do. Refer
to the Settings Chart on the
inside of the Welder door.
c. With assistance, set the cylinder (not included)
onto a cabinet or cart near the Welder
and secure the cylinder in place with two
straps (not included) to prevent tipping.
d. Remove the cylinder’s cap. Stand to the
side of the valve opening, then open the
valve briefly to blow dust and dirt from the
valve opening. Close the cylinder valve.
e. Locate the Regulator (included) and close its
valve until it is loose, then thread Regulator
onto cylinder and wrench-tighten connection.
E&$*- When using C100 shielding gas, connect the
enclosed CGA 580/320 adapter to the inlet connection
of the Regulator and wrench-tighten. Thread the
adapter onto the gas cylinder and wrench-tighten.
f. Attach the Gas Hose (included)
to the Regulator’s outlet and
the Welder’s gas inlet. Wrench-
tighten both connections.
R(&'89%T7,5/%T,+7*%
"8%E*3,$"Y*%?&4X*$
QT6S%%
Solid Core (Gas Shielded)
S&7,("$>%?*$'/
P"(*%<**9%
S&)*(%T,+7*%"8%
S&#"$"Y*%?&4X*$
Reset
Power Input
Gas Inlet
IP21S S1f1 f2
Serial:
63621 17b
Conforms to UL Std. 60974-1
269317
Vulcan OMNIPRO 220
30A/15.5V to 220A/25V
X 25% 60% 100%
U0  78V I2200A 130A 115A
U224V 20.5V 19.75V
1~50/60Hz
U1 = 240V
I1max = 25.5A
23.7A
15.6A
I1eff  12.8A
11.9A
8.5A
10A/20.4V to 175A/27V
X 25% 60% 100%
U0  78V I2175A 115A 100A
U227V 24.6V 24V
10A/10.4V to 175A/17V
X 30% 60% 100%
U0  15V I2175A 125A 105A
U217V 15V 14.2V
30A/15.5V to 140A/21V
X 40% 60% 100%
U0  78V I2100A 85A 75A
U219V 18.25V 17.75V
1~50/60Hz
U1 = 120V
I1max = 20.8A
19.5A
20.6A
I1eff = 13.1A
12.3A
13A
10A/20.4V to 80A/23.2V
X 40% 60% 100%
U0  78V I280A 70A 60A
U223.2V 22.8V 22.4V
10A/10.4V to 125A/15V
X 40% 60% 100%
U0  15V I2125A 105A 90A
U215V 14.2V 13.6V
2*
4
W("*27>%&/*8%Y,7Y*%
$&%47*,8I%%
$.*8%47&#*%%
Y,7Y*1
9
Page 15<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
CDSV;A@EA
?*4'(*7>%.&79%&8$&%$.*%*89%&2%$.*%)*79"83%)"(*%,89%X**/%
$*8#"&8%&8%"$%9'("83%$.*%2&77&)"83%#$*/#1
C2%$."#%"#%8&$%9&8*I%$.*%)*79"83%)"(*%)"77%'8(,Y*7%,89%'8#/&&7%
)."4.%4,8%4,'#*%$,837"83%,89%2**9"83%/(&+7*5#1
18. Cut off all bent and crimped wire.
The cut end must have no burrs or
sharp edges; cut again if needed.
19. Keep tension on the wire and guide at
least 12 inches of wire into the Wire
Inlet Liner and Feed Guide.
20. Make sure the welding wire is resting in the groove
of the Feed Roller, then push the wire Idler Arm
down, and swing the Feed Tensioner up to latch it
across the tip of the arm.
After the wire is held by the Tensioner,
you may release it.
E&$*- The tension should be 3 – 5 for solid wire and
2 – 3 for flux-cored wire. Too much force on flux-cored
wire will crush it and may cause feeding issues.
21. Pull the Nozzle to remove it.
22. Unscrew the Contact Tip
counterclockwise and remove.
23. Lay the MIG Gun Cable out in a straight line
so that the welding wire moves through it
easily. Leave the cover open, so that the
feed mechanism can be observed.
CDSV;A@EA
?$,"87*##%#$**7%)"(*%"#%7*##%27*["+7*%$.,8%
&$.*(%)*79"83%)"(*1%%A.*(*2&(*I%"$%"#%5&(*%
9"22"4'7$%$&%2**9%$.(&'3.%$.*%7"8*(%,89%3'81%%
C$%"#%*#/*4",77>%"5/&($,8$%$&%X**/%$.*%3'8%4,+7*%
#$(,"3.$%)."7*%2**9"83%#$,"87*##%#$**7%)"(*1
P"(*%
?/&&7
P*79"83%
P"(*
BVGQ%PC;6%
?6TF;6GO <**9%
R'"9*
P"(*%C87*$%
G"8*(
C97*(%@(5 <**9%A*8#"&8*(
E&ZZ7* T&8$,4$
A"/
DCR%R'8
Page 16 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Q@ER6;
S@;A?%D@O%W6%@A%P6GQCER%!VGA@R6%
AV%S;6!6EA%6G6TA;CT%?BVTU%@EQ%Q6@AB-
1. U**/%.,89#%,),>%2(&5%P"(*%<**9%5*4.,8"#51
2. T7&#*%9&&(%+*2&(*%/7'33"83%"8I%'87*##%'#"83%T&79%
P"(*%<**9%$&%2**9%)"(*%$.(&'3.%$&%3'81
3. Q&%8&$%$&'4.%A("33*(%)."7*%2**9"83%)"(*%$.(&'3.%$&%3'81
24. Plug either 120 VAC or 240 VAC Power
Cord into Power Input Socket.
E&$*- Plug will only fit one way.
25. Do not touch the Gun’s Trigger. Plug the Power
Cord into a properly grounded, GFCI protected
120 VAC (20 amp rated) or 240 VAC receptacle that
matches the plug and turn the Power Switch ON.
The circuit must be equipped with delayed
action-type circuit breaker or fuses.
26. Point the Gun away from
all objects. Press and
hold the Cold Wire Feed
Switch until the wire feeds
through two inches.
A.*%)"(*%7"8*(%5,>%4&5*%
&'$%)"$.%$.*%)*79"83%
)"(*1%%A."#%"#%8&(5,7I%
='#$%/'#.%$.*%)"(*%7"8*(%
+,4X%"8$&%$.*%R'81
If the wire does not feed
properly and the Spool
is stationary, turn OFF
and unplug the Welder
and slightly tighten the
Feed Tensioner clockwise
before retrying.
Reset
Power Input
Gas Inlet
IP21S S1f1 f2
Serial:
63621 17b
Conforms to UL Std. 60974-1
269317
Vulcan OMNIPRO 220
30A/15.5V to 220A/25V
X 25% 60% 100%
U0  78V I2200A 130A 115A
U224V 20.5V 19.75V
1~50/60Hz
U1 = 240V
I1max = 25.5A
23.7A
15.6A
I1eff  12.8A
11.9A
8.5A
10A/20.4V to 175A/27V
X 25% 60% 100%
U0  78V I2175A 115A 100A
U227V 24.6V 24V
10A/10.4V to 175A/17V
X 30% 60% 100%
U0  15V I2175A 125A 105A
U217V 15V 14.2V
30A/15.5V to 140A/21V
X 40% 60% 100%
U0  78V I2100A 85A 75A
U219V 18.25V 17.75V
1~50/60Hz
U1 = 120V
I1max = 20.8A
19.5A
20.6A
I1eff = 13.1A
12.3A
13A
10A/20.4V to 80A/23.2V
X 40% 60% 100%
U0  78V I280A 70A 60A
U223.2V 22.8V 22.4V
10A/10.4V to 125A/15V
X 40% 60% 100%
U0  15V I2125A 105A 90A
U215V 14.2V 13.6V
S&)*(%
C8/'$
S&)*(%
?)"$4.
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P*79"83%
P"(*
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T&79%P"(*%
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Page 17<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
27. To check the wire’s drive tension, press and hold
Trigger to feed the wire against a piece of wood
from 2 to 3 inches away.
E&$*-%%@2$*(%/(*##"83%A("33*(I%)"(*%)"77%#$&/%
2**9"83%,2$*(%M%#*4&89#%"2%$.*(*%"#%8&%,(41%%
T.*4X%$*8#"&8%2&(%7*##%$.,8%M%#*4&89#1%%
%
If the wire stops instead of bending, unplug
the Welder, slightly tighten the Feed Tensioner
clockwise, and try again. If the wire bends
from the feed pressure, then the tension
is set properly. Before proceeding, turn
OFF the Power Switch and unplug the
Power Cord from its electrical outlet.
28. Turn OFF the Power Switch and unplug the
Power Cord from its electrical outlet.
29. Close the Door. Make sure
Door is securely latched.
30. Select a Contact Tip that is compatible with
the welding wire used. Slide the Contact
Tip over the wire and thread it clockwise into
the MIG Gun. Tighten the Contact Tip.
31. Replace the Nozzle and cut the wire
off at 1/2" from tip (1/2" stickout).
C84(*5*8$,77>%%
"84(*,#*%$*8#"&8%%
'8$"7%%
)"(*%+*89#1 ]aMb
E&ZZ7* T&8$,4$
A"/
DCR%R'8
V/$"&8,7%?/&&7%R'8%?*$'/
1. To se t up o pt io na l Sp oo l Gu n (s ol d separately), plug Gro un d Cl am p Ca bl e in to N eg at iv e (
a
) Socket. Plug
Wire Feed Power Cable into Positive (`) Socket. Twist cables clockwise all the way to lock in place.
2. Loosen the Knob on the Wire Feed
mechanism, then insert the Spool
Gun Cable Connector through the
hole on the Welder front and into
the socket on the Wire Feed.
3. Ensure Cable Connector is fully
inserted and tighten the Knob
securely. If Connector is not fully
inserted, the gas connection will
leak, preventing shielding gas
from reaching the welding arc.
EVACT6- To prevent damage, do
not overtighten the Knob.
4. Insert the Wire Feed Control Cable
through hole on Welder front and
connect to the Wire Feed Control Socket
inside the machine, then tighten lock
ring on the Cable plug. Note that the
plug on the Cable fits into the Socket
in one specific orientation only.
5. Connect Gas Hose on Spool Gun Cable
Connector to Spool Gun Gas Outlet on front
of Welder. Refer to paragraph 17 on page 14
for further shielding gas setup information.
6. Refer to Spool Gun manual for
operational information.
?/&&7%R'8
?/&&7%R'8%
R,#%V'$7*$
?/&&7%R'8%%
T,+7*%T&88*4$&(
R,#%B&#*
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T&8$(&7%
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R(&'89%
T7,5/%T,+7*%
"8%E*3,$"Y*%
?&4X*$
P"(*%<**9%
S&)*(%T,+7*%"8%
S&#"$"Y*%?&4X*$
Page 18 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
W,#"4%P"(*%P*79"83
;*,9%$.*%6EAC;6%CDSV;A@EA%?@<6AO%CE<V;D@ACVE%#*4$"&8%,$%$.*%+*3"88"83%&2%$."#%5,8',7%
"847'9"83%,77%$*[$%'89*(%#'+.*,9"83#%$.*(*"8%+*2&(*%)*79"831
AV%S;6!6EA%?6;CVF?%CE^F;O-%
S(&$*4$"Y*%3*,(%5'#$%+*%)&(8%).*8%'#"83%$.*%P*79*(c%5"8"5'5%#.,9*%8'5+*(%JN%2'77%2,4*%#."*79%
(or welding mask), ear protection, welding gloves, sleeves and apron, NIOSH-approved respirator, and fire
(*#"#$,8$%)&(X%47&$.*#%)"$.&'$%/&4X*$#%#.&'79%+*%)&(8%).*8%)*79"831%%%
G"3.$%2(&5%$.*%,(4%4,8%4,'#*%/*(5,8*8$%9,5,3*%$&%$.*%*>*#%,89%#X"81%%
Q&%8&$%+(*,$.*%,(4%2'5*#1
Flux-cored wire welding is used to weld mild steel
and stainless steel without shielding gas.
MIG welding uses solid wire and shielding gas,
and is used to weld mild steel and stainless steel.
MIG welding can also be used to weld thinner
workpieces than flux-cored welding can.
Aluminum welding can be performed with an
optional Spool Gun (sold separately) using
aluminum wire and shielding gas.
Good welding takes a degree of skill and experience.
Practice a few sample welds on scrap before
welding your first project. Additional practice
periods are recommended whenever you weld:
a different thickness of material
a different type of material
a different type of connection
using a different process
D,X*%/(,4$"4*%)*79#%&8%/"*4*#%&2%#4(,/%$&%/(,4$"4*%
$*4.8"H'*%+*2&(*%)*79"83%,8>$."83%&2%Y,7'*1
S(,4$"4*%>&'(%)*79"83%
$*4.8"H'*%&8%#4(,/%
/"*4*#%+*2&(*%)*79"83%
,8>$."83%&2%Y,7'*1
AV%S;6!6EA%?6;CVF?%CE^F;OI%%
<C;6%@EQ%WF;E?-%
U**/%)*79"83%$"/%47*,(%&2%3(&'89*9%
&+=*4$#%).*8*Y*(%'8"$%"#%/7'33*9%
"8%,89%$'(8*9%&81
S&)*(%
?)"$4.
d
Page 19<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
?*$$"83%F/%A.*%P*79
47,5/#
)&(X/"*4*#
T.,52*(%$."4X%)&(X/"*4*#1
T7*,8%#'(2,4*#%
$&%+,(*%5*$,71
1. D,X*%/(,4$"4*%)*79#%&8%/"*4*#%&2%#4(,/%$.*%
#,5*%$."4X8*##%,#%>&'(%"8$*89*9%)&(X/"*4*%
$&%/(,4$"4*%$*4.8"H'*%+*2&(*%)*79"83%,8>$."83%
&2%Y,7'*1%%Clean the weld surfaces thoroughly
with a wire brush or angle grinder; there
must be no rust, paint, oil, or other materials
on the weld surfaces, only bare metal.
2. Use clamps (not included) to hold the workpieces
in position so that you can concentrate on proper
welding technique. 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. The edges
of thicker workpieces may need to be chamfered
(or beveled) to allow proper weld penetration.
E&$"4*- When welding equipment on a vehicle,
disconnect the vehicle battery power from both the
positive connection and the ground before welding.
This prevents damage to some vehicle electrical
systems and electronics due to the high voltage
and high frequency bursts common in welding.
3. Clamp Ground Cable to bare metal on the
workpiece near the weld area, or to metal work
bench where the workpiece is clamped.
R(&'89%4&88*4$"&8%9*/*89#%
&8%9*#"(*9%)*79"83%/&7,("$>
P&(X/"*4*
R(&'89%
T7,5/
T7*,8%
#'(2,4*%$&%
+,(*%5*$,71
Duty Cycle (Duration of Use)
@Y&"9%9,5,3*%$&%$.*%P*79*(%+>%8&$%)*79"83%2&(%5&(*%
$.,8%$.*%/(*#4("+*9%9'$>%4>47*%$"5*1%%The Duty Cycle
defines the number of minutes, within a 10 minute
period, during which a given welder can produce a
particular welding current without overheating.
For example, a welder with a 40% duty cycle at
100 A welding current must be allowed to rest for at least
6 minutes after every 4 minutes of continuous welding.
Failure to carefully observe duty cycle limitations
can easily over-stress a welder’s power generation
system contributing to premature welder failure.
This Welder has an internal thermal protection system
to help prevent this sort of over-stress. When the
Welder overheats, it automatically shuts down and a
warning screen appears in the LCD Display window.
The Welder automatically returns to service after
cooling off. Should this occur, rest the MIG Gun on an
electrically non-conductive, heat-proof surface, such
as a concrete slab, well clear of the ground clamp.
@77&)%$.*%P*79*(%$&%4&&7%)"$.%$.*%S&)*(%?)"$4.%&8I%
#&%$.,$%$.*%"8$*(8,7%<,8%)"77%.*7/%4&&7%$.*%P*79*(1
When normal operation resumes, use shorter welding
periods and longer rest periods to prevent needless wear. JNNe%T&8$"8'&'#%F#*%,$%JJ_
@
25% Use at 200 A
<&(%JN%T&8$"8'&'#%D"8'$*#
]KJ0]%
D"8'$*#%
P*79"83
fKJ0]
D"8'$*#%
;*#$"83
JNNe%T&8$"8'&'#%F#*%,$%f_
@
40% Use at 100 A
<&(%JN%T&8$"8'&'#%D"8'$*#
4%
D"8'$*#%
P*79"83
g
D"8'$*#%
;*#$"83
Page 20 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
4. Turn the Power Switch to the OFF position,
then plug the Power Cord into a properly
grounded, GFCI protected 120 VAC (20 amp
rated) or 240 VAC receptacle that matches
the plug. The circuit must be equipped with
delayed action-type circuit breaker or fuses.
5. Set MIG Gun down on nonconductive, nonflammable
surface away from any grounded objects.
6. Turn the Power Switch ON.
S&)*(%
?)"$4.
?*$$"83#
D,"8%
T&8$(&7%
U8&+
G*2$%
U8&+
;"3.$%
U8&+
1. Press Home Button on Control Panel.
2. Turn Main Control Knob until desired
process appears on LCD display screen.
3. Press Main Control Knob to select process.
E&$*- Press Main Control Knob to go to next screen.
Press Back Button to return to the previous screen.
4. Adjust settings for the selected process.
a. Polarity and Gas Settings:
• Plug cables in according to screen.
• Connect gas according to screen.
• Set SCFH between 20-30.
b. Set Wire Diameter and Material Thickness:
• Turn Left Knob to set wire diameter.
• Turn Right Knob to set material thickness.
1N]_b 24Ga
c. Auto Weld Settings:
• Turn Left Knob to adjust Wire
Feed Speed (Amperage).
• Turn Right Knob to adjust Voltage.
J]J JM1L
N1N
N
1NMNb
N1N
]_ _
24Ga
S(&4*##
;'8KC8%P<? C89'4$,84* ?/&$%A"5*(
P"(*%
Q",5*$*(
D,$*(",7%
A."4X8*##
R,#%A>/*
E&$*- If the Wire Feed Speed or Voltage settings are
adjusted manually, the white mark on the line shows
the recommended setting for your wire/electrode
diameter and workpiece thickness.
Page 21<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
d. Optional Settings:
• Press Main Control Knob to
enter Optional Settings.
• Turn Main Control Knob until desired
setting appears on screen.
• Press Main Control Knob to
select desired setting.
• Turn Main Control Knob to adjust setting.
Available Optional Settings:
Run-In WFS – Adjust wire speed before it
contacts workpiece. This setting represents
a % of the pre-set wire feed speed (WFS).
Inductance – Adjust length of arc.
Increase for more fluid puddle and flatter
bead. Decrease for colder puddle.
Spot Timer – Set timer for spot welding.
Recall Setting – Retrieve saved settings.
Save Setting – Program up to 5 different
configurations. Turn Main Control Knob to
scroll between 5 available slots. Press Main
Control Knob to access OVERWRITE MEMORY
SETTING screen and turn Main Control Knob
to choose YES selection. Press Main Control
Knob to save current Welder settings.
E&$*- The initial settings may need to be
adjusted after stopping and carefully inspecting
the weld. Proper welding takes experience.
R,#%?."*79*9I%?&7"9KT&(*%P"(*%V87>
Q@ER6;h%%AV%S;6!6EA%Q6@AB%%
<;VD%@?SBOiC@ACVE-%
Q&%8&$%&/*8%3,#%)"$.&'$%/(&/*(%Y*8$"7,$"&81%%<"[%3,#%
7*,X#%"55*9",$*7>1
Shielding gas can displace air and cause rapid loss of
consciousness and death.
?."*79"83%3,#%)"$.&'$%4,(+&8%9"&["9*%4,8%+*%
*Y*8%5&(*%.,Z,(9&'#%+*4,'#*%,#/.>[",$"&8%
4,8%#$,($%)"$.&'$%2**7"83%#.&($8*##%&2%+(*,$.1
1. Open gas cylinder valve all the way.
2. Set Flow Gauge to SCFH value
indicated on Settings Chart.
Page 22 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
1.
W,#"4%P"(*%P*79"83%A*4.8"H'*
Press (and hold) Trigger and contact the area
to be welded with electrode wire to ignite arc.
2. For a narrow weld, you can usually draw the wire
in a steady straight line.
This is called a stringer bead.
For a wider weld, draw the wire back and forth
across the joint.
This is called a weave bead and takes
practice to perform properly.
3. Direct the welding wire straight into the joint.
This gives an angle of 90° (straight up and
down) for butt (end to end) welds, and an
angle of 45° for fillet (T-shaped) welds.
4. For MIG welding using solid wire and
shielding gas, the end of the MIG Gun should
be tilted so that wire is angled anywhere
in-between straight on and 15° away
from the direction you are welding. The
amount of tilt is called the push angle.
5. When using flux-cored wire without
shielding gas, the end of the MIG Gun
should be tilted so that wire is angled
anywhere in-between straight on and
15° in the direction you are welding. The
amount of tilt is called the drag angle.
6. The Contact Tip should remain within 1/2″
of the work surface. This distance is called
CTWD - Contact Tip to Work Distance.
#$("83*(%+*,9 )*,Y*%+*,9
P*79%DCR%R'8%,837*#I%%
Y"*)*9%2(&5%2(&8$%&2%)*79%=&"8$1
45°
2"77*$%)*79%=&"8$
90°
+'$$%)*79%=&"8$
TAPQ%%
(up to 1/2")
P*79%
Q"(*4$"&8
Q(,3%@837*
0-15°
P*79%
Q"(*4$"&8
S'#.%@837*
0-15°
?&7"9%P"(*%)"$.%?."*79"83%R,# <7'[KT&(*9%P"(*%)"$.&'$%R,#
Page 23<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
E&$*-%%If Welder is used too long, a
warning screen appears in the LCD
Display window and the unit automatically
shuts down. The Welder automatically
returns to service after cooling off.
Should this occur, rest the MIG Gun
on an electrically non-conductive,
heat-proof surface, such as a concrete
slab, away from the ground clamp.
@77&)%$.*%P*79*(%$&%4&&7%)"$.%$.*%
S&)*(%?)"$4.%&8I%#&%$.,$%$.*%"8$*(8,7%
<,8%)"77%.*7/%4&&7%$.*%P*79*(1%%
When normal operation resumes, use
shorter welding periods and longer rest
periods to help prevent needless wear.
7. After welding the test weld on a piece
of scrap for a few seconds, stop, and
check your progress. Clean, then compare
your weld’s appearance with the diagrams
and descriptions in the P*79"83%A"/# section
starting on the next page. After making any
necessary adjustments, continue to weld
while carefully following the DUTY CYCLE
guidelines as explained on page 19.
T@FACVEh%%P*79%)"77%+*%.&$I%9&%8&$%$&'4.1
8. P.*8%)*79"83%"#%4&5/7*$*I #*$%$.*%DCR%
R'8%9&)8%&8%,%.*,$K/(&&2I%*7*4$("4,77>%
8&8K4&89'4$"Y*%#'(2,4*1
Turn the Power Switch OFF.
9. Allow Welder to cool down, then
unplug the Power Cord.
10. Remove Ground Clamp from workpiece
or table and disconnect MIG Gun.
11. Respool wire by clipping wire, removing gas
nozzle/contact tip on MIG gun, releasing Idler
Arm on Wire Feed mechanism, and rotating
the Wire Spool counterclockwise. Be sure
to securely hold wire as it is being respooled
because the end of wire has a tendency to
quickly unravel once it clears the wire feeder.
12. DCR%VEGO-%
T7&#*%#."*79"83%3,#%4>7"89*(%Y,7Y*%
#*4'(*7>1%%Remove Regulator and
replace cap. Disconnect Gas Hose from
Welder. Store and secure gas cylinder.
S&)*(%
?)"$4.
GTQ%
Q"#/7,> P,(8"83%
?4(**8
120 VAC
40% Use at 100 A
<&(%JN%T&8$"8'&'#%D"8'$*#
100% Continuous Use at 75 A
4%
D"8'$*#%
P*79"83
g%
D"8'$*#%
;*#$"83
240 VAC
25% Use at 200 A
<&(%JN%T&8$"8'&'#%D"8'$*#
100% Continuous Use at 115 A
]KJ0]%
D"8'$*#%
P*79"83
fKJ0]%
D"8'$*#%
;*#$"83
@2$*(%/(,4$"4*%)*79"83%2&(%,%2*)%#*4&89#I%
?AVS%,89%*[,5"8*%>&'(%)*79%'#"83%$.*%
3'"9*7"8*#%#$,($"83%&8%$.*%8*[$%/,3*1
<VGGVP%QFAO%TOTG6h
DCR%R'8
4&84(*$*%#7,+%
j&(%&$.*(%.*,$K/(&&2I%
non-conductive surface)
S&)*(%
?)"$4.
Page 24 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
TIG / Stick Welding
;*,9%$.*%6EAC;6%CDSV;A@EA%?@<6AO%CE<V;D@ACVE%#*4$"&8%,$%$.*%+*3"88"83%&2%$."#%5,8',7%
"847'9"83%,77%$*[$%'89*(%#'+.*,9"83#%$.*(*"8%+*2&(*%#*$%'/%&(%'#*%&2%$."#%/(&9'4$1
AV%S;6!6EA%?6;CVF?%CE^F;O%<;VD%@TTCQ6EA@G%VS6;@ACVE-%
A'(8%$.*%S&)*(%?)"$4.%&22%,89%'8/7'3%$.*%P*79*(%+*2&(*%#*$'/1
E&$*-%Remove the protective foam and cardboard from the Welder before setup. Place the Welder on a level
surface that can bear its weight near the work area. Leave space around the Welder for proper air flow.
ACR%?*$'/
T&88*4$%T,+7*#
R(&'89%T7,5/%T,+7*%
"8%S&#"$"Y*%?&4X*$
R(&'89%
T7,5/
ACR%A&(4.%
T,+7*%"8%
E*3,$"Y*%
?&4X*$
ACR%A&(4.%
(sold separately)
<&&$%S*9,7%?&4X*$%
(inside Welder)
<&&$%S*9,7%
(sold separately)
<&&$%S*9,7%
T,+7*
?."*79"83%
R,#%B&#*
1. Plug Ground Clamp Cable into Positive Socket.
Twist clockwise all the way to lock in place.
2. Plug TIG Torch Cable (TIG Torch sold
separately) into Negative Socket. Twist
clockwise all the way to lock in place.
3. Insert the Foot Pedal Cable (Foot Pedal
sold separately) through hole on Welder
front and connect to the Foot Pedal
Socket inside the machine. Secure by
turning collar clockwise until tight.
4. For connecting Shielding Gas Hose, refer to
Connect Shielding Gas section on next page.
Page 25<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
T&88*4$%?."*79"83%R,#
1. With assistance, place an 100% Argon cylinder
(not included) onto a cabinet or cart near the
Welder and secure the cylinder in place with
two straps (not included) to prevent tipping.
2. Remove the cylinder’s cap. Stand to the
side of the valve opening, then open the
valve briefly to blow dust and dirt from the
valve opening. Close the cylinder valve.
3. Locate the Regulator (included) and close its
valve until it is loose, then thread Regulator
onto cylinder and wrench-tighten connection.
4. Connect Shielding Gas Hose on TIG
Torch Cable Connector to the Regulator’s
Outlet and wrench-tighten connection.
T&88*4$%S&)*(%T&(9
Plug either 120 VAC or 240 VAC Power
Cord into Power Input Socket.
E&$*- Plug will only fit one way.
P@;ECERh AV%S;6!6EA%?6;CVF?%CE^F;O%
<;VD%@TTCQ6EA@G%VS6;@ACVE-%Do not
plug cord into wall outlet at this time.
4M
J
W("*27>%&/*8%Y,7Y*%
$&%47*,8I%%
$.*8%47&#*%%
Y,7Y*1
]
Reset
Power Input
Gas Inlet
IP21S S1f1 f2
Serial:
63621 17b
Conforms to UL Std. 60974-1
269317
Vulcan OMNIPRO 220
30A/15.5V to 220A/25V
X 25% 60% 100%
U0  78V I2200A 130A 115A
U224V 20.5V 19.75V
1~50/60Hz
U1 = 240V
I1max = 25.5A
23.7A
15.6A
I1eff  12.8A
11.9A
8.5A
10A/20.4V to 175A/27V
X 25% 60% 100%
U0  78V I2175A 115A 100A
U227V 24.6V 24V
10A/10.4V to 175A/17V
X 30% 60% 100%
U0  15V I2175A 125A 105A
U217V 15V 14.2V
30A/15.5V to 140A/21V
X 40% 60% 100%
U0  78V I2100A 85A 75A
U219V 18.25V 17.75V
1~50/60Hz
U1 = 120V
I1max = 20.8A
19.5A
20.6A
I1eff = 13.1A
12.3A
13A
10A/20.4V to 80A/23.2V
X 40% 60% 100%
U0  78V I280A 70A 60A
U223.2V 22.8V 22.4V
10A/10.4V to 125A/15V
X 40% 60% 100%
U0  15V I2125A 105A 90A
U215V 14.2V 13.6V
S&)*(%
C8/'$
Page 26 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Sharpen Tungsten Electrode (sold separately)
To avoid Electrode contamination, dedicate a fine grit grinding wheel exclusively to Electrode grinding.
P@;ECERh Some Electrodes may have
materials added to them that are hazardous to
breathe. Wear a respirator and ANSI-approved
Safety goggles when grinding an Electrode.
1. Shut off the welder and wait until Electrode
and Torch have cooled enough to handle.
2. Remove Back Cap. Pull Electrode from front
of Torch. (Pulling it from rear will damage
Collet and create burrs on Electrode).
3. If Electrode has dulled or been otherwise
contaminated, use pliers or a suitable tool to
grip the Electrode above the contaminated
section and snap off the end of the Electrode.
4. Lightly press Electrode tip
against the surface of
the grinding wheel at an angle.
Rotate Electrode tip until a
blunt point is formed.
E&$*- Grinding direction must be
parallel to length of Electrode.
5. The conical portion of the ideal
tip will be 2-1/2 times as long
as the Electrode diameter.
6. Re-insert Electrode into Collet with tip
protruding 1/8"-1/4" beyond the Ceramic
Nozzle, then re-tighten the Back Cap.
Assemble TIG Torch (sold separately)
1. Consult Settings Chart, on top of Welder, to
determine proper Tungsten Electrode size to be
used with thickness of material to be welded.
2. Match Collet and Collet Body sizes
to Tungsten Electrode size.
3. Thread Collet Body into the front of the Torch.
4. Make sure Ceramic Nozzle size is
appropriate for application.
5. Thread Ceramic Nozzle onto Collet Body.
6. Insert Collet into back of Torch and into Collet Body.
7. Insert Tungsten Electrode into
Collet on front of Torch.
8. Lock Electrode in place with Back Cap.
Electrode should protrude 1/8" to 1/4"
beyond the Ceramic Nozzle.
T&77*$%
W&9>
T*(,5"4%
E&ZZ7*
T&77*$
W,4X%T,/
C8#*($%$'83#$*8%
67*4$(&9*%.*(*1
R("89"83%
P.**7
67*4$(&9*
Page 27<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
?$"4X%?*$'/
T&88*4$%T,+7*#
67*4$(&9*%B&79*(%%
T,+7*%"8%S&#"$"Y*%?&4X*$
R(&'89%T7,5/%T,+7*%
"8%E*3,$"Y*%?&4X*$
R(&'89%
T7,5/
67*4$(&9*%
B&79*(
1. Plug Ground Clamp Cable into Negative Socket.
Twist clockwise all the way to lock in place.
2. Plug Electrode Holder Cable into Positive Socket.
Twist clockwise all the way to lock in place.
T&88*4$%S&)*(%T&(9
Plug either 120 VAC or 240 VAC Power
Cord into Power Input Socket.
E&$*- Plug will only fit one way.
P@;ECERh AV%S;6!6EA%?6;CVF?%CE^F;O%
<;VD%@TTCQ6EA@G%VS6;@ACVE-%Do not
plug cord into wall outlet at this time.
Reset
Power Input
Gas Inlet
IP21S S1f1 f2
Serial:
63621 17b
Conforms to UL Std. 60974-1
269317
Vulcan OMNIPRO 220
30A/15.5V to 220A/25V
X 25% 60% 100%
U0  78V I2200A 130A 115A
U224V 20.5V 19.75V
1~50/60Hz
U1 = 240V
I1max = 25.5A
23.7A
15.6A
I1eff  12.8A
11.9A
8.5A
10A/20.4V to 175A/27V
X 25% 60% 100%
U0  78V I2175A 115A 100A
U227V 24.6V 24V
10A/10.4V to 175A/17V
X 30% 60% 100%
U0  15V I2175A 125A 105A
U217V 15V 14.2V
30A/15.5V to 140A/21V
X 40% 60% 100%
U0  78V I2100A 85A 75A
U219V 18.25V 17.75V
1~50/60Hz
U1 = 120V
I1max = 20.8A
19.5A
20.6A
I1eff = 13.1A
12.3A
13A
10A/20.4V to 80A/23.2V
X 40% 60% 100%
U0  78V I280A 70A 60A
U223.2V 22.8V 22.4V
10A/10.4V to 125A/15V
X 40% 60% 100%
U0  15V I2125A 105A 90A
U215V 14.2V 13.6V
S&)*(%
C8/'$
Page 28 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Basic TIG / Stick Welding
% ;*,9%$.*%6EAC;6%CDSV;A@EA%?@<6AO%CE<V;D@ACVE%#*4$"&8%,$%$.*%+*3"88"83%&2%$."#%
5,8',7%"847'9"83%,77%$*[$%'89*(%#'+.*,9"83#%$.*(*"8%+*2&(*%#*$%'/%&(%'#*%&2%$."#%/(&9'4$1
%
AV%S;6!6EA%?6;CVF?%CE^F;O-%
S(&$*4$"Y*%3*,(%5'#$%+*%)&(8%).*8%'#"83%$.*%P*79*(c%5"8"5'5%#.,9*%8'5+*(%JN%2'77%2,4*%#."*79%
(or welding mask), ear protection, welding gloves, sleeves and apron, NIOSH-approved respirator, and fire
(*#"#$,8$%)&(X%47&$.*#%)"$.&'$%/&4X*$#%#.&'79%+*%)&(8%).*8%)*79"831%%%
G"3.$%2(&5%$.*%,(4%4,8%4,'#*%/*(5,8*8$%9,5,3*%$&%$.*%*>*#%,89%#X"81%%
Q&%8&$%+(*,$.*%,(4%2'5*#1
• DC TIG Welding is used to weld
mild steel and stainless steel using
a TIG Rod and shielding gas.
• AC TIG Welding is used to weld aluminum
using a TIG Rod and shielding gas.
• Stick Welding is used to weld mild
steel and stainless steel using a
Stick Electrode without shielding gas.
Good welding takes a degree of skill and experience.
Practice a few sample welds on scrap before
welding your first project. Additional practice
periods are recommended whenever you weld:
• a different thickness of material
• a different type of material
• a different type of connection
• using a different process
D,X*%/(,4$"4*%)*79#%&8%/"*4*#%&2%#4(,/%$&%/(,4$"4*%
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AV%S;6!6EA%?6;CVF?%CE^F;OI%%
<C;6%@EQ%WF;E?-%
U**/%)*79"83%$"/%47*,(%&2%3(&'89*9%
&+=*4$#%).*8*Y*(%'8"$%"#%/7'33*9%
"8%,89%$'(8*9%&81
S&)*(%
V8
d
S(,4$"4*%>&'(%)*79"83%
$*4.8"H'*%&8%#4(,/%
/"*4*#%+*2&(*%)*79"83%
,8>$."83%&2%Y,7'*1
Page 29<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
Duty Cycle (Duration of Use)
@Y&"9%9,5,3*%$&%$.*%P*79*(%+>%8&$%)*79"83%2&(%5&(*%
$.,8%$.*%/(*#4("+*9%9'$>%4>47*%$"5*1%%The Duty Cycle
defines the number of minutes, within a 10 minute
period, during which a given welder can produce a
particular welding current without overheating.
For example, a welder with a 40% duty
cycle at 125 A welding current must be
allowed to rest for at least 6 minutes after
every 4 minutes of continuous welding.
Failure to carefully observe duty cycle limitations
can easily over-stress a welder’s power generation
system contributing to premature welder failure.
This Welder has an internal thermal protection system to
help prevent this sort of over-stress. When the Welder
overheats, it automatically shuts down and a warning
screen appears in the LCD Display window. The Welder
automatically returns to service after cooling off. Should
this occur, rest the Tig Torch or Electrode Holder on an
electrically non-conductive, heat-proof surface, such
as a concrete slab, well clear of the ground clamp.
@77&)%$.*%P*79*(%$&%4&&7%)"$.%$.*%S&)*(%?)"$4.%&8I%
#&%$.,$%$.*%"8$*(8,7%<,8%)"77%.*7/%4&&7%$.*%P*79*(1
When normal operation resumes, use
shorter welding periods and longer rest
periods to prevent needless wear.
240 VAC
25% Use at 175 A
<&(%JN%T&8$"8'&'#%D"8'$*#
100% Continuous Use at 100 A
]KJ0]
D"8'$*#%
P*79"83
fKJ0]
D"8'$*#%
;*#$"83
120 VAC
40% Use at 80 A
<&(%JN%T&8$"8'&'#%D"8'$*#
100% Continuous Use at 60 A
4
D"8'$*#%
P*79"83
g
D"8'$*#%
;*#$"83
?$"4X%;,$*9%Q'$>%T>47*#
240 VAC
30% Use at 175 A
<&(%JN%T&8$"8'&'#%D"8'$*#
100% Continuous Use at 105 A
M
D"8'$*#%
P*79"83
f
D"8'$*#%
;*#$"83
120 VAC
40% Use at 125 A
<&(%JN%T&8$"8'&'#%D"8'$*#
100% Continuous Use at 90 A
4
D"8'$*#%
P*79"83
g
D"8'$*#%
;*#$"83
ACR%;,$*9%Q'$>%T>47*#
?*$$"83%'/%$.*%P*79
47,5/#
)&(X/"*4*#
T.,52*(%$."4X%)&(X/"*4*#1
T7*,8%#'(2,4*#%
$&%+,(*%5*$,71
1. D,X*%/(,4$"4*%)*79#%&8%/"*4*#%&2%#4(,/%$.*%
#,5*%$."4X8*##%,#%>&'(%"8$*89*9%)&(X/"*4*%
$&%/(,4$"4*%$*4.8"H'*%+*2&(*%)*79"83%,8>$."83%
&2%Y,7'*1%%Clean the weld surfaces thoroughly
with a wire brush or angle grinder; there
must be no rust, paint, oil, or other materials
on the weld surfaces, only bare metal.
2. Use clamps (not included) to hold the workpieces
in position so that you can concentrate on
proper welding technique. 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. The edges of
thicker workpieces may need to be chamfered
(or beveled) to allow proper weld penetration.
EVACT6- When welding equipment on a vehicle,
disconnect the vehicle battery power from both the
positive connection and the ground before welding.
This prevents damage to some vehicle electrical
systems and electronics due to the high voltage
and high frequency bursts common in welding.
3. Clamp Ground Cable to bare metal on the
workpiece near the weld area, or to metal work
bench where the workpiece is clamped.
R(&'89%4&88*4$"&8%9*/*89#%
&8%9*#"(*9%)*79"83%/&7,("$>
P&(X/"*4*
R(&'89%
T7,5/
T7*,8%
#'(2,4*%$&%
+,(*%5*$,71
Page 30 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
ACR%P*79"83
AV%S;6!6EA%?6;CVF?%CE^F;O%@EQ%Q6@AB-%%%
Q&%8&$%)*79%)"$.&'$%R(&'89"83%T7,5/1%%
P.*8%$.*%&/*(,$&(%"#%8&$%.&79"83%$.*%A&(4.I%"$%5'#$%+*%#"$$"83%&8%,%8&84&89'4$"Y*I%8&827,55,+7*%#'(2,4*1%
V87>%.&79%ACR%;&9%)"$.%,8%*7*4$("4,77>%"8#'7,$*9%)*79"83%37&Y*1
%%%
AV%S;6!6EA%Q6@AB%<;VD%@?SBOiC@ACVE-%
Q&%8&$%&/*8%3,#%)"$.&'$%/(&/*(%Y*8$"7,$"&81%%<"[%3,#%7*,X#%"55*9",$*7>1 Shielding gas can displace
air and cause rapid loss of consciousness and death. ?."*79"83%3,#%)"$.&'$%4,(+&8%9"&["9*%4,8%+*%
*Y*8%5&(*%.,Z,(9&'#%+*4,'#*%,#/.>[",$"&8%4,8%#$,($%)"$.&'$%2**7"83%#.&($8*##%&2%+(*,$.1
EVACT6-% TIG welding is a complicated process,
requiring experience and skill to achieve
successful results. Training beyond the scope of
this manual is required to TIG weld properly.
1. Open gas cylinder’s valve all the way.
2. Set Flow Gauge to SCFH value indicated on the
Settings Chart on the inside of the Welder door.
3. Turn the Power Switch to the OFF position, then
plug the Welder into a properly grounded, GFCI
protected, 120 VAC (20 amp rated) outlet or
240 V outlet. The circuit must be equipped with
delayed action-type circuit breaker or fuses.
4. Set TIG Torch down on nonconductive,
nonflammable surface away from
any grounded objects.
5. Turn the Power Switch ON.
6. Press Home Button on Control Panel.
7. Turn Main Control Knob until TIG process
appears on LCD display screen.
8. Press Main Control Knob to select TIG process.
E&$*- Press Main Control Knob to go to next screen.
Press Back Button to return to the previous screen.
D,"8%
T&8$(&7%
U8&+
G*2$%
U8&+
;"3.$%
U8&+
ACR
9. Adjust settings for the TIG process.
a. Polarity and Gas Settings:
• Plug cables in according to screen.
• Connect gas according to screen.
• Set SCFH between 10-25.
b. Set Rod Diameter and Material Thickness:
• Turn Left Knob to set rod diameter.
• Turn Right Knob to set material thickness.
c. Auto Weld Settings:
• Turn Left Knob to adjust output amperage.
• Turn Right Knob to ON to energize TIG Torch.
P@;ECERh P*79*(%"#%8&)%*8*(3"Z*9%,89%
V/*8%T"(4'"$%!&7$,3*%"#%/(*#*8$1
S(&4*## ;&9%
Q",5*$*(
D,$*(",7%
A."4X8*##
R,#%A>/*
Page 31<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
d. Optional Settings:
• Press Main Control Knob to
enter Optional Settings.
• Turn Main Control Knob until desired
setting appears on screen.
• Press Main Control Knob to
select desired setting.
• Turn Main Control Knob to adjust setting.
Available Optional Settings:
Recall Setting – Retrieve saved settings.
Save Setting – Program up to
5 different configurations.
E&$*- The initial settings may need to be
adjusted after stopping and carefully inspecting
the weld. Proper welding takes experience.
P@;ECERh%%AV%S;6!6EA%?6;CVF?%CE^F;O-%%
S(&$*4$"Y*%3*,(%5'#$%+*%)&(8%).*8%'#"83%$.*%
P*79*(c%5"8"5'5%#.,9*%8'5+*(%JN%2'77%2,4*%#."*79%
(or welding mask), ear protection, welding gloves,
#7**Y*#%,89%,/(&8I%ECV?BK,//(&Y*9%(*#/"(,$&(I%
,89%2"(*%(*#"#$,8$%)&(X%47&$.*#%)"$.&'$%/&4X*$#%
#.&'79%+*%)&(8%).*8%)*79"831%%G"3.$%2(&5%$.*%
,(4%4,8%4,'#*%/*(5,8*8$%9,5,3*%$&%$.*%*>*#%
,89%#X"81%%Q&%8&$%+(*,$.*%,(4%2'5*#1
After practice welding on scrap, stop,
and check your progress. Perform
Strike Test according to ?$("X*%A*#$%&8%
page 34. After making any necessary
adjustments, continue to weld while
carefully following the DUTY CYCLE
guidelines as explained on page 29.
P@;ECERh D*$,7%)&(X%+*84.%5'#$%
+*%3(&'89*9%).*8%ACR%)*79"831
10. Hold TIG Torch in one gloved hand and the TIG
Rod (sold separately) in other gloved hand.
EVA6- Maintain a constant distance between the
Tungsten Electrode and the workpiece: between
1 and 1.5 times the diameter of the Electrode.
11. Open valve on TIG Torch to start gas flow.
12. To initiate welding arc, push Foot Pedal and touch
Electrode to work piece and lift. If not using Foot
Pedal, touch Electrode to work piece and lift.
13. When welding puddle is hot enough, tilt Torch
backward about 10-15 degrees from vertical and
move it back slightly. Add TIG Rod material as
needed to the front end of the weld puddle.
14. Alternate between pushing the torch/weld
puddle and adding the TIG Rod material.
EVA6- Remove the TIG Rod each time the Electrode
is advanced, but do not remove it from the gas shield.
This prevents oxidation from contaminating the weld.
15. When finished welding, release the Foot Pedal but
keep Torch on weld puddle until weld solidifies.
If not using Foot Pedal, pull Torch away from
work piece until welding arc is broken, then
return the gas coverage until weld solidifies.
16. Close valve on TIG Torch and turn Right Knob
to OFF to turn off power to TIG Torch.
17. Set TIG Torch down on nonconductive,
nonflammable surface away from
any grounded objects.
18. Turn the Power Switch OFF.
19. To prevent accidents, after use:
• Allow Welder to cool down.
• Unplug Welder’s power cord from outlet.
• Remove Ground Clamp from workpiece or table.
• Disconnect TIG Torch, Ground
and Food Pedal Cables.
• Close gas cylinder’s valve securely,
remove regulator and replace cap.
• Disconnect Gas Hose from Welder.
• Store and secure gas cylinder.
• Clean, then store Welder and its accessories
indoors out of children’s reach.
Page 32 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
?$"4X%P*79"83
AV%S;6!6EA%?6;CVF?%CE^F;O%@EQ%Q6@AB-%%%
Q&%8&$%)*79%)"$.&'$%R(&'89"83%T7,5/1%%
P.*8%$.*%&/*(,$&(%"#%8&$%.&79"83%$.*%67*4$(&9*%B&79*(I%"$%5'#$%+*%
#"$$"83%&8%,%8&84&89'4$"Y*I%8&827,55,+7*%#'(2,4*1
1. Turn the Power Switch to the OFF position, then
plug the Welder into a properly grounded, GFCI
protected, 120 VAC (20 amp rated) outlet or
240 V outlet. The circuit must be equipped with
delayed action-type circuit breaker or fuses.
2. Set Electrode Holder down on
nonconductive, nonflammable surface
away from any grounded objects.
3. Turn the Power Switch ON.
4. Press Home Button on Control Panel.
5. Turn Main Control Knob until Stick process
appears on LCD display screen.
6. Press Main Control Knob to select STICK process.
E&$*- Press Main Control Knob to go to next screen.
Press Back Button to return to the previous screen.
D,"8%
T&8$(&7%
U8&+
G*2$%
U8&+
;"3.$%
U8&+
?$"4X
7. Adjust settings for the STICK process.
a. Polarity Setting:
• Plug cables in according to screen.
b. Set Electrode type:
• Turn Main Control Knob to set electrode type.
c. Set Electrode Diameter and Material Thickness:
• Turn Left Knob to set electrode diameter.
• Turn Right Knob to set material thickness.
d. Auto Weld Settings:
• Turn Left Knob to adjust output amperage.
• Turn Right Knob to ON to
energize Electrode Holder.
P@;ECERh P*79*(%"#%8&)%*8*(3"Z*9%,89%
V/*8%T"(4'"$%!&7$,3*%"#%/(*#*8$1
B&$%?$,($ @(4%<&(4*
67*4$(&9*%
Q",5*$*(
D,$*(",7%
A."4X8*##
S(&4*##
67*4$(&9*%
A>/*
Page 33<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
e. Optional Settings: 
• Press Main Control Knob to
enter Optional Settings.
• Turn Main Control Knob until desired
setting appears on screen.
• Press Main Control Knob to
select desired setting.
• Turn Main Control Knob to adjust setting.
Available Optional Settings:
Hot Start – Adjust amperage at start of weld.
Arc Force – Adjust weld penetration
and smoothness.
Recall Setting – Retrieve saved settings.
Save Setting – Program up to
5 different configurations.
E&$*- The initial settings may need to be
adjusted after stopping and carefully inspecting
the weld. Proper welding takes experience.
P@;ECERh%%AV%S;6!6EA%?6;CVF?%CE^F;O-%%
S(&$*4$"Y*%3*,(%5'#$%+*%)&(8%).*8%'#"83%$.*%
P*79*(c%5"8"5'5%#.,9*%8'5+*(%JN%2'77%2,4*%#."*79%
(or welding mask), ear protection, welding gloves,
#7**Y*#%,89%,/(&8I%ECV?BK,//(&Y*9%(*#/"(,$&(I%
,89%2"(*%(*#"#$,8$%)&(X%47&$.*#%)"$.&'$%/&4X*$#%
#.&'79%+*%)&(8%).*8%)*79"831%%G"3.$%2(&5%$.*%
,(4%4,8%4,'#*%/*(5,8*8$%9,5,3*%$&%$.*%*>*#%
,89%#X"81%%Q&%8&$%+(*,$.*%,(4%2'5*#1
After practice welding on scrap, stop,
and check your progress. Perform
Strike Test according to ?$("X*%A*#$%&8%
page 34. After making any necessary
adjustments, continue to weld while
carefully following the DUTY CYCLE
guidelines as explained on page 29.
8. Place the bare metal end of the Stick Electrode (sold
separately) inside the jaws of the Electrode Holder.
9. Stroke the workpiece lightly to ignite the arc.
Tips for igniting the arc:
a. Tap the surface with the Electrode.
b. Stroke the surface with the Electrode.
c. Strike the surface like a match with the Electrode.
10. After the arc ignites:
a. Lift the Electrode off workpiece the same
distance as the diameter of the bare metal end.
b. Tilt Electrode back 10 to 20 degrees.
c. Drag Electrode to the back end of the weld
puddle to deposit material as needed.
11. When finished welding; lift the Electrode from
the workpiece, then set Electrode Holder
down on nonconductive, nonflammable
surface away from any grounded objects.
12. Turn the Power Switch OFF.
13. To prevent accidents, after use:
• Allow Welder to cool down.
• Unplug Welder’s power cord from outlet.
• Remove Ground Clamp.
• Disconnect Electrode Holder
and Ground Cables.
14. Clean, then store Welder and its accessories
indoors out of children’s reach.
Page 34 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
P*79"83%A"/#
A good way to test welding technique is to examine a weld’s appearance after it has cooled and the slag has been
removed. Then, better welding can be learned by adjusting your weld technique to remedy any problems found.
NOTICE: TIG welding is a complicated process, requiring experience and skill to achieve successful
results. Training beyond the scope of this manual is required to TIG weld properly.
@2$*(%/(,4$"4*%)*79"83%,%4&'/7*%
&2%)*79"83%+*,9#I%?AVS%,89%
*[,5"8*%>&'(%)*79%'#"83%
$.*%2&77&)"83%3'"9*7"8*#1
?$("X*%A*#$
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QF;CER%ABC?%S;VT6QF;61
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/*(2&(5*9%&81%%A."#%$*#$%"#%VEGO%,8%"89"4,$&(%&2%)*79%
$*4.8"H'*%,89%"#%8&$%"8$*89*9%$&%$*#$%)&(X"83%)*79#1
1. After two scraps have been welded together 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 RVVQ%P6GQ will deform but not break, as shown
on top.
A SVV;%P6GQ will be brittle and snap at the
weld, as shown on bottom.
47,5/
?T;@S%
)&(X/"*4*
RVVQ%P6GQ%%
+*89#%,89%"#%8&$%+("$$7*
9*,9K+7&)%.,55*(
47,5/
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#8,/#%&(%4(,4X#
9*,9K+7&)%.,55*(
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T&8$"8'*%$&%)*,(%@E?CK,//(&Y*9%
#,2*$>%3&337*#%,89%/(&$*4$"Y*%)*,(%
).*8%47*,8"83%,%)*791%%
?/,(X#%&(%4."/#%5,>%27>%).*8%47*,8"831
1. A weld from flux-cored wire welding or stick
welding will be covered by slag. Use a chipping
hammer to knock this off. W*%4,(*2'7%8&$%
$&%9,5,3*%$.*%)*79%&(%+,#*%5,$*(",71
2. Use a wire brush to further clean the weld
or use an angle grinder (sold separately) to
shape the weld.
T."//"83%
B,55*(
P"(*%W('#.
Page 35<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
Wire Weld Diagnosis – Workpiece Heat Control / Weld Penetration
6iT6??%S6E6A;@ACVE%V;%
WF;EKAB;VFRB
S;VS6;%S6E6A;@ACVECE@Q6kF@A6%S6E6A;@ACVE
E&$%.&$%*8&'3. A&&%.&$C9*,7%.*,$
B&)%$&%"84(*,#*%)&(X/"*4*%.*,$%%
,89%"84(*,#*%/*8*$(,$"&8-%%
j$&%)*79%ABCTU6; workpieces properly)
B&)%$&%(*9'4*%)&(X/"*4*%.*,$%%
,89%7"5"$%/*8*$(,$"&8-%%
j$&%)*79%ABCEE6; workpieces properly)
a. C84(*,#*%)*79%4'((*8$
b. Q*4(*,#*%$(,Y*7%#/**9
c. F#*%2,#$*(%)"(*%2**9
d. F#*%#.&($*(%TAPQ
e. Q*4(*,#*%)*79%4'((*8$
f. C84(*,#*%$(,Y*7%#/**9
g. F#*%#7&)*(%)"(*%2**9
h. F#*%7&83*(%TAPQ
6[,5/7*%P"(*%P*79%Q",3(,5#
R&&9%%
P*79
!&7$,3*%%
A&&%G&)%&(%
P"(*%<**9%
A&&%?7&)
!&7$,3*%%
A&&%B"3.%&(%
P"(*%<**9%%
A&&%<,#$
A(,Y*7%?/**9%
A&&%<,#$
A(,Y*7%?/**9%
A&&%?7&)
TAPQ%
A&&%G&83%%
&(%
P(&83%S&7,("$>
AV%TV;;6TA-
$(,Y*7%
#7&)*(
AV%TV;;6TA-
$(,Y*7%
2,#$*(
AV%TV;;6TA-
T.*4X%S&7,("$>%%
,89
5,"8$,"8%
7*##%
$.,8%J0]b%
TAPQ
AV%TV;;6TA-AV%TV;;6TA-
&(
C84(*,#*%
V'$/'$%!&7$,3*
C84(*,#*%P"(*%
<**9%?/**9
&(
Q*4(*,#*%
V'$/'$%!&7$,3*
Q*4(*,#*%P"(*%
<**9%?/**9
Page 36 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Wire Weld Penetration (Workpiece Heat Control)
6iT6??%S6E6A;@ACVE%V;%
WF;EKAB;VFRB
P*79%9(&&/#%&8%$&/%,89%
'89*(8*,$.I%&(%2,77#%$.(&'3.%
*8$"(*7>I%5,X"83%,%.&7*1
S;VS6;%S6E6A;@ACVE
P*79%"#%Y"#"+7*%'89*(8*,$.%,89%
+'73*#%#7"3.$7>%&8%$&/1
CE@Q6kF@A6%S6E6A;@ACVE
P*79%9&*#%8&$%/*8*$(,$*%$.*%
=&"8$%2'77>I%='#$%&8%$.*%#'(2,4*1
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
1. P&(X/"*4*%&Y*(.*,$"83-%
Reduce wire feed speed.
Decrease weld current.
2. A(,Y*7%#/**9%$&&%#7&)-
Increase travel speed and ensure
that travel speed is kept steady.
3. 6[4*##"Y*%5,$*(",7%,$%)*79-%
Reduce wire feed speed.
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
4. C84&((*4$%)*79"83%$*4.8"H'*-
Maintain 1/2" or less CTWD.
Keep arc on leading edge of weld puddle.
Hold MIG Gun at proper angles.
5. C8#'22"4"*8$%)*79%.*,$-%
Reduce travel speed.
Increase weld current.
6. P&(X/"*4*#%$&&%$."4X047&#*-
Bevel thick workpieces, allow slight
gap, and weld in several passes.
7. C8#'22"4"*8$%)*79%5,$*(",7-%
Increase wire feed speed.
PROFILE VIEWS
P*79%E&$%@9.*("83%S(&/*(7>
R,/#%/(*#*8$%+*$)**8%)*79%,89%/(*Y"&'#%+*,9%&(%
+*$)**8%)*79%,89%)&(X/"*4*1%%?**%,(*,#%+*7&)1
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
1. C84&((*4$%)*79"83%$*4.8"H'*-
Place stringer bead at correct place in joint.
Adjust workpiece position or weld angle to permit
proper welding to bottom of piece.
Pause briefly at sides during weave bead.
Keep arc on leading edge of weld puddle.
Hold MIG Gun at proper angles.
2. C8#'22"4"*8$%)*79%.*,$-%
Increase current.
Increase wire feed speed.
3. Q"($>%)&(X/"*4*-
Clean workpiece down to bare metal.
4. C8#'22"4"*8$%)*79%5,$*(",7-%
Increase wire feed speed.
5. P&(X/"*4*%3,/%$&&%8,((&)-%
Widen groove or increase bevel.
PROFILE
VIEW
W*89%,$%^&"8$
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
1. C5/(&/*(%47,5/"83-
Clamp workpieces securely.
Make tack welds to hold workpieces.
2. 6[4*##"Y*%.*,$-
Weld a small portion and allow to cool before
proceeding.
Increase travel speed.
Reduce wire feed speed.
PROFILE
VIEW
T&,$%&2%?7,3%VY*(%P*79
?7,3%"#%,%8*4*##,(>%/,($%&2%,%27'[K4&(*9%)"(*%
)*791%%C$%#."*79#%$.*%)*79%2(&5%"5/'("$"*#1%%
T7*,8%&22%$.*%#7,3%)"$.%,%T."//"83%B,55*(%
,89%P"(*%W('#.%,2$*(%)*79"831
R,#K#."*79*9%DCR%)*79#%,(*%/(&$*4$*9%+>%$.*%
#."*79"83%3,#%,89%9&%8&$%8**9%#7,3%$&%/(&$*4$%$.*51
TOP
VIEW
PARTIALLY CHIPPED AWAY TO SHOW WELD
Page 37<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
Wire Weld – Burn-Through
W,#*%5,$*(",7%5*7$#%,),>I%%
7*,Y"83%,%.&7*%"8%$.*%)*791
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
1. P&(X/"*4*%&Y*(.*,$"83-%
Reduce current and/or wire feed speed.
2. A(,Y*7%#/**9%$&&%#7&)-
Increase travel speed and ensure
that travel speed is kept steady.
3. 6[4*##"Y*%5,$*(",7%,$%)*79-%
Reduce wire feed speed.
TOP
VIEW
Wire Weld – Crooked/Wavy Bead
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
1. C8,44'(,$*%)*79"83-
Use two hands or rest hand on steady surface.
2. C84&8#"#$*8$%$(,Y*7%#/**9-%
Maintain steady travel speed.
3. TAPQ%$&&%7&83-
Reduce CTWD.
TOP
VIEW
Wire Weld – Porosity
?5,77%4,Y"$"*#%&(%.&7*#%"8%$.*%+*,91
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
1. C84&((*4$%/&7,("$>-
Check that polarity is set correctly
for type of welding.
2. Insufficient shielding gas (MIG only):
Increase flow of gas.
Clean nozzle.
Maintain proper CTWD.
3. Incorrect shielding gas (MIG only):
Use shielding gas recommended by wire supplier.
4. Q"($>%)&(X/"*4*%&(%)*79"83%)"(*-
Clean workpiece down to bare metal.
Make certain that wire is clean and free
from oil, coatings, and other residues.
5. C84&8#"#$*8$%$(,Y*7%#/**9-%
Maintain steady travel speed.
6. TAPQ%$&&%7&83-
Reduce CTWD.
TOP
VIEW
Wire Weld – Excessive Spatter
<"8*%#/,$$*(%"#%8&(5,71%
?/,$$*(%$.,$%"#%3(,"8>%,89%7,(3*%"#%,%/(&+7*51
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
1. Q"($>%)&(X/"*4*%&(%)*79"83%)"(*-
Clean workpiece down to bare metal.
Make certain that wire is clean and free
from oil, coatings, and other residues.
2. C84&((*4$%/&7,("$>-
Check that polarity is set correctly
for type of welding.
3. Insufficient shielding gas (MIG only):
Increase flow of gas.
Clean nozzle.
Maintain proper CTWD.
4. P"(*%2**9"83%$&&%2,#$-%
Reduce wire feed speed.
5. TAPQ%$&&%7&83-
Reduce CTWD.
TOP
VIEW
Page 38 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Stick Weld Diagnosis – Workpiece Heat Control / Weld Penetration
6iT6??%S6E6A;@ACVE%V;%
WF;EKAB;VFRB
S;VS6;%S6E6A;@ACVECE@Q6kF@A6%S6E6A;@ACVE
E&$%.&$%*8&'3. A&&%.&$C9*,7%.*,$
B&)%$&%"84(*,#*%)&(X/"*4*%.*,$%%
,89%"84(*,#*%/*8*$(,$"&8-%%
j$&%)*79%ABCTU6; workpieces properly)
a. Increase current. b. Weld more slowly.
B&)%$&%(*9'4*%)&(X/"*4*%.*,$%%
,89%7"5"$%/*8*$(,$"&8-%%
j$&%)*79%ABCEE6; workpieces properly)
c. Decrease current. d. Weld more quickly.
6[,5/7*%?$"4X%P*79%Q",3(,5#
TG6@E%P6GQ?%<C;?Ah
?$"4X%)*79#%)"77%.,Y*%,%4&,$%&2%#7,3%&Y*(%$.*5%'8$"7%47*,8*91
R&&9%
P*79
T'((*8$%%
A&&%G&)%
AV%TV;;6TA-%
Increase the
current
AV%TV;;6TA-%
Decrease
the current
T'((*8$%%
A&&%B"3.
AV%TV;;6TA-
Weld slower
P*79%?/**9%
A&&%<,#$
AV%TV;;6TA-
Weld faster
P*79%?/**9%
A&&%?7&)
@(4%G*83$.%%
A&&%?.&($%
AV%TV;;6TA-
Increase
distance
@(4%G*83$.%%
A&&%G&83%
AV%TV;;6TA-
Decrease
distance
Page 39<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
Stick Weld Penetration (Workpiece Heat Control)
6iT6??%S6E6A;@ACVE%V;%
WF;EKAB;VFRB
P*79%9(&&/#%&8%$&/%,89%
'89*(8*,$.%&(%2,77#%$.(&'3.%
*8$"(*7>I%5,X"83%,%.&7*1
S;VS6;%S6E6A;@ACVE
P*79%"#%Y"#"+7*%'89*(8*,$.%,89%
+'73*#%#7"3.$7>%&8%$&/1
CE@Q6kF@A6%S6E6A;@ACVE
P*79%9&*#%8&$%4&8$,4$%$.*%=&"8$%
2'77>I%='#$%&8%$.*%#'(2,4*1
PROFILE VIEWS
SV??CWG6%T@F?6?%@EQ%?VGFACVE?%<V;%
6iT6??%S6E6A;@ACVE%V;%WF;EKAB;VFRB
1. P&(X/"*4*%&Y*(.*,$"83-%
Reduce current.
2. P*79"83%#/**9%$&&%#7&)-
Increase welding speed and ensure
that welding speed is kept steady.
SV??CWG6%T@F?6?%@EQ%?VGFACVE?%<V;
CE@Q6kF@A6%S6E6A;@ACVE
1. C84&((*4$%)*79"83%$*4.8"H'*-
Keep arc on leading edge of weld puddle.
Hold torch at proper angles.
2. C8#'22"4"*8$%)*79%.*,$-%
Slow down so fill material has time to melt
into the weld location. Increase current.
3. P&(X/"*4*#%$&&%$."4X047&#*-
Bevel thick workpieces, allow slight
gap, and weld in several passes.
4. C8#'22"4"*8$%)*79%5,$*(",7-%
Increase amount of fill material.
Stick Weld – Weld Not Adhering Properly
R,/#%/(*#*8$%+*$)**8%)*79%,89%/(*Y"&'#%+*,9%&(%+*$)**8%)*79%,89%)&(X/"*4*1%%?**%,(*,#%+*7&)1
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
PROFILE
VIEW
1. C84&((*4$%)*79"83%$*4.8"H'*-
Place stringer bead at correct place in joint.
Adjust workpiece position or weld angle to permit
proper welding to bottom of piece.
Keep arc on leading edge of weld puddle.
Hold Electrode and fill material at proper angles.
2. C8#'22"4"*8$%)*79%.*,$-%
Increase current.
3. Q"($>%)&(X/"*4*-
Clean workpiece down to bare metal.
4. C8#'22"4"*8$%)*79%5,$*(",7-%
Increase amount of fill material.
5. Q"#$,84*%+*$)**8%)&(X/"*4*#%$&%7,(3*-%
Decrease distance and increase bevel.
Stick Weld – Bend at Joint
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
PROFILE
VIEW
1. C5/(&/*(%47,5/"83-
Clamp workpieces securely.
Make tack welds to hold workpieces.
2. 6[4*##"Y*%.*,$-
Weld a small portion and allow to cool before
proceeding.
Increase weld speed.
Page 40 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Stick Weld – Coat of Slag Over Weld
TOP
VIEW
PARTIALLY CHIPPED AWAY TO SHOW WELD
?7,3%"#%,%8*4*##,(>%/,($%&2%,%#$"4X%)*791%%C$%#."*79#%
$.*%)*79%2(&5%"5/'("$"*#1%%T7*,8%&22%$.*%#7,3%)"$.%$.*%
T."//"83%B,55*(%,89%P"(*%W('#.%,2$*(%)*79"831
Stick Weld – Porosity l%?5,77%4,Y"$"*#%&(%.&7*#%"8%$.*%+*,91
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
TOP
VIEW
1. Q"($>%)&(X/"*4*%&(%2"77%5,$*(",7-
Clean workpiece down to bare metal.
Make certain that fill material and Electrode are
clean and free from oil, coatings, and other residues.
2. C84&8#"#$*8$%)*79"83%#/**9-%
Maintain steady weld speed.
Stick Weld – Crooked/Wavy Bead
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
TOP
VIEW
1. C8,44'(,$*%)*79"83-
Use two hands or rest hand on steady surface.
2. C84&8#"#$*8$%)*79"83%#/**9-%
Maintain steady weld speed.
Stick Weld – Excessive Spatter
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
TOP
VIEW
<"8*%#/,$$*(%"#%8&(5,71%?/,$$*(%$.,$%"#%
3(,"8>%,89%7,(3*%"#%,%/(&+7*51%
Q"($>%)&(X/"*4*%&(%2"77%5,$*(",7-
Clean workpiece down to bare metal.
Make certain that fill material and Electrode are
clean and free from oil, coatings, and other residues.
Stick Weld – Burn-Through l%W,#*%5,$*(",7%5*7$#%,),>I%7*,Y"83%,%.&7*%"8%$.*%)*791
SV??CWG6%T@F?6?%@EQ%?VGFACVE?
TOP
VIEW
1. P&(X/"*4*%&Y*(.*,$"83-%
Reduce current.
2. P*79"83%#/**9%$&&%#7&)-
Increase welding speed and ensure
that welding speed is kept steady.
3. 6[4*##"Y*%5,$*(",7%,$%)*79-%
Reduce amount of fill material.
Page 41<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
D,"8$*8,84*
AV%S;6!6EA%?6;CVF?%CE^F;OI%<C;6%@EQ%WF;E?-%
F8/7'3%$.*%P*79*(I%(*#$%$.*%$&&7%&8%,%.*,$K/(&&2I%*7*4$("4,77>%8&8K4&89'4$"Y*%#'(2,4*I%,89%,77&)%
,77%/,($#%&2%$.*%P*79*(%$&%4&&7%$.&(&'3.7>%+*2&(*%#*(Y"4*1%
1. W6<V;6%6@TB%F?6I inspect the general
condition of the Welder. Check for:
• loose hardware
• misalignment or binding of moving parts
damaged cord / electrical wiring
• frayed or damaged cables
• cracked or broken parts
• any other condition that may
affect its safe operation.
2. S6;CVQCT@GGOI have a qualified
technician remove the Rear Panel
and use compressed air to blow
out all dust from the interior.
3. @<A6;%6!6;O%F?6, store in
a clean and dry location.
4. For optimal MIG / Flux-Cored wire weld
H',7"$>I%47*,8%,89%"8#/*4$%$.*%DCR%
R'8%T&8$,4$%A"/%,89%E&ZZ7*%+*2&(*%
*,4.%'#*I%,#%*[/7,"8*9%+*7&)1
DCR%R'8%E&ZZ7*%,89%T&8$,4$%A"/%C8#/*4$"&8%,89%T7*,8"83
1. D,X*%#'(*%$.,$%$.*%*8$"(*%DCR%R'8%"#%4&5/7*$*7>%
4&&7%,89%$.,$%$.*%S&)*(%T&(9%"#%'8/7'33*9%
2(&5%$.*%*7*4$("4,7%&'$7*$%+*2&(*%/(&4**9"831
2. Pull the Nozzle to remove it.
3. Scrub the interior of the Nozzle
clean with a wire brush.
4. Examine the end of the Nozzle. 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.
5. Unscrew the Contact Tip counterclockwise
and slide it off the welding wire to remove.
6. Scrub the outside of the Tip clean with a wire brush.
Clean out the inside of the tip with a tip
cleaner (sold separately). Check that the Tip
is the proper type for the wire size used.
7. Examine the shape of the hole at the end of
the Contact Tip. It should be an even circle; it
should not be oblong or have any bulges in it.
8. If any problems are noted, replace the
Contact Tip. Select a new Tip of the
correct size for the welding wire used.
9. Reinstall the Tip and securely
reinstall the Nozzle as well.
E&ZZ7* T&8$,4$
A"/
;*/7,4"83%$.*%GTQ%?4(**8%T&Y*(
1. Carefully pry frame off of Display (17)
by inserting flathead screwdriver (sold
separately) into one of the side slots.
Q"#/7,>
2. Insert a new Screen Cover (18) into Screen
Frame (19) with the gap facing downward.
?4(**8%
T&Y*(
?4(**8%
<(,5*
3. Insert frame back into slot on Display with
the top end being placed in first.
Page 42 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Troubleshooting – MIG / Flux-Cored Welding
CDSV;A@EAh
W*%T6;A@CE%$&%#.'$%&22%$.*%P*79*(I%9"#4&88*4$%"$%2(&5%/&)*(I%,89%9"#4.,(3*%$.*%DCR%R'8%$&%
3(&'89%+*2&(*%,9='#$"83I%47*,8"83I%&(%(*/,"("83%$.*%'8"$1
S(&+7*5 S&##"+7*%T,'#*# G"X*7>%?&7'$"&8#
Wire Feed Motor
Runs but Wire Does
Not Feed Properly
1. Insufficient wire feed pressure.
2. Incorrect wire feed roller size.
3. Damaged MIG Gun, cable, or liner assembly.
4. Feed Tensioner is too tight.
1. Increase wire feed pressure properly.
Follow step 27 on page 17.
2. Flip roll to correct size. Follow the Feed
Roller instructions on page 12.
3. Have a qualified technician inspect these
parts and replace as necessary.
4. Loosen Feed Tensioner so it applies only
enough pressure to prevent continued
spinning after the Gun Trigger is released.
Wire Creates a
Bird’s Nest During
Operation
1. Excess wire feed pressure.
2. Incorrect Contact Tip size.
3. MIG Gun Cable Connector not fully
inserted into Wire Feed mechanism.
4. Damaged liner.
1. Adjust wire feed pressure properly.
Follow step 27 on page 17.
2. Replace with the proper tip for wire used.
3. Insert Gun Cable Connector properly.
Follow steps 13 and 14 on page 13.
4. Have a qualified technician inspect
and repair/replace as necessary.
Wire Stops
During Welding
1. Gun cable is severely bent and Wire
Feed mechanism cannot feed wire.
2. Gun liner is clogged or worn.
3. Gun liner is too small for
welding wire being used.
4. Wire is tangled on the spool.
5. Wire is not making contact with Feed Rollers.
6. Feed Roller is not making enough contact
with wire or is crushing flux-cored wire.
1. Straighten Gun cable.
2. Check gun liner for obstruction.
Replace if necessary.
3. Check that gun liner is correct size for wire.
4. Check wire for cross winding or tangled spool.
5. Check Feed Rollers and ensure correct
groove for wire diameter is being used.
6. Check Feed Tensioner and ensure it is set properly.
Welding Arc
Not Stable
1. Wire not feeding properly.
2. Incorrect Contact Tip or liner
size or excessive wear.
3. Incorrect wire feed speed.
4. Loose MIG Gun cable or ground cable.
5. Damaged MIG Gun or loose
connection within Gun.
6. Incorrect polarity for process being run.
7. Gas coverage may be insufficient or too high.
8. Poor connection with workpiece.
1. See first Troubleshooting section above.
2. Replace with the proper tip or
liner size for wire used.
3. Adjust wire feed speed to achieve
a more stable arc.
4. Check to ensure that all connections are tight.
5. Have a qualified technician inspect
and repair/replace as necessary.
6. Ensure polarity is correct for operation:
DCEP for MIG welding and DCEN for
Flux-Cored self-shielded welding.
7. Ensure gas flow rate is set according to
Settings Chart. Make sure MIG Gun Cable
Connector is fully inserted into Wire Feed
mechanism with no O-Rings exposed.
8. Check the ground clamp connection to
the workpiece and machine. Ensure
the MIG Gun is properly secured.
Weak Arc Strength
1. Incorrect line voltage.
2. Improper gauge or length of cord.
3. Not enough current.
1. Check the line voltage and, if insufficient, have
a licensed electrician remedy the situation.
2. Do not use an extension cord on this Welder.
Use only one of the supplied power cords for
this Welder or an identical replacement cord.
3. Switch current to proper setting for metal thickness.
<&77&)%,77%#,2*$>%/(*4,'$"&8#%).*8*Y*(%9",38&#"83%&(%#*(Y"4"83%$.*%*H'"/5*8$1
Page 43<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
S(&+7*5 S&##"+7*%T,'#*# G"X*7>%?&7'$"&8#
Welder Does Not
Function When
Switched On
1. Tripped thermal protection device.
2. Circuit supplies insufficient input voltage or
amperage.
3. Faulty or improperly connected Trigger.
4. Machine is in low- or
over-voltage protection.
5. Machine is in the incorrect mode.
1. If a warning screen appears in the LCD Display
window, Welder may have overheated and shut
down. Stop and wait with the Power Switch ON
for the Welder to cool. The Welder automatically
returns to service after cooling off. Reduce
duration or frequency of welding periods to
help reduce wear on the Welder. Refer to
Duty Cycle (Duration of Use) on page 19.
2. Verify that the circuit is designed to supply the
required input voltage and amperage as detailed
on the Specifications table. If a warning screen
appears in the LCD Display window, check the
input voltage to ensure it is within specified range.
3. Ensure the gun connection is properly
seated on machine. Qualified technician
must check and secure/replace Trigger.
4. Check input voltage and ensure it falls within
the specified range. If input voltage is correct,
press Reset Button on back of machine.
5. Ensure the correct process has been selected.
LCD Display
Does Not Light
When Welder is
Switched On
1. Unit is not connected to outlet properly.
2. Outlet is unpowered.
3. Plug does not have correct rating.
4. Circuit breaker has tripped due
to high input amperage.
5. Input Power Cord is not seated properly.
1. Verify the voltage at the outlet and
the connection to the outlet.
2. Check circuit breaker/GFCI devices;
if any are tripped, determine and
remedy cause before resetting.
3. Make sure installed plug is correct rating.
See Specifications on page 7.
4. Press Reset Button on back of
machine to reset circuit breaker.
5. Ensure the twist lock input Power
Cord is fully secured.
Wire Feeds, but Arc
Does Not Ignite
1. Improper ground connection.
2. Improperly sized Contact Tip.
3. Excessively worn Contact Tip.
4. Dirty Contact Tip.
1. 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. Verify that Contact Tip is the proper size
for welding wire. If needed, replace
Contact Tip with proper size and type.
3. Check that the hole in the tip is not
deformed or enlarged. If needed, replace
Contact Tip with proper size and type.
4. Properly clean Contact Tip.
Porosity in the
Weld Metal
1. Shielding gas bottle is empty.
2. Not enough or too much shielding gas.
3. Dirty workpiece.
4. Gun is being used too far
away from workpiece.
5. Polarity is incorrect for the application.
6. Dirty welding wire is introducing
contamination into the weld.
1. Check gas bottle and replenish as necessary.
2. Check gas regulator to ensure proper flow.
3. Clean workpiece down to bare metal.
4. Check CTWD (contact tip to work
distance) for the proper procedure.
5. Check the polarity and ensure it is DCEP
for MIG and DCEN for Flux-Cored.
6. Make certain that welding wire is clean
and free of rust and residues.
<&77&)%,77%#,2*$>%/(*4,'$"&8#%).*8*Y*(%9",38&#"83%&(%#*(Y"4"83%$.*%*H'"/5*8$1
Page 44 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
Troubleshooting – TIG / Stick Welding
CDSV;A@EAh
W*%T6;A@CE%$&%#.'$%&22%$.*%P*79*(I%9"#4&88*4$%"$%2(&5%/&)*(I%,89%9"#4.,(3*%$.*%
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S(&+7*5 S&##"+7*%T,'#*# G"X*7>%?&7'$"&8#
Welder Does Not
Function When
Switched On
1. Tripped thermal protection device.
2. Faulty or improperly
connected Trigger.
3. Ground Clamp not attached
to workpiece.
4. Shielding Gas not connected.
1. Reduce duration or frequency of welding periods
to help reduce wear on the welder. Refer to
Duty Cycle (Duration of Use) on page 29.
2. Qualified technician must check and
secure/replace Trigger.
3. Attach Ground Clamp to workpiece.
4. Connect shielding gas to Welder.
LCD Display Does Not
Light When Welder
is Switched On
1. Unit is not connected
to outlet properly.
2. Outlet is unpowered.
1. Verify the voltage at the outlet and
the connection to the outlet.
2. Check circuit breaker/GFCI devices; if any are tripped,
determine and remedy cause before resetting. Verify
that the circuit is designed to supply the required input
amperage as detailed in Specifications on page 7.
Weak Arc Strength 1. Incorrect line voltage.
2. Improper gauge or length of cord.
1. Check the line voltage and, if insufficient, have
a licensed electrician remedy the situation.
2. Do not use an extension cord on this Welder. Use
only one of the supplied power cords for this
Welder or an identical replacement cord.
Welding Arc
Not Stable.
1. Loose electrode cable
or ground cable.
2. Damaged electrode holder or loose
connection within electrode holder.
3. Adjust current setting.
4. Shielding gas getting low.
1. Check to ensure that all connections are tight.
2. Have a qualified technician inspect and
repair/replace as necessary.
3. Make sure setting matches
recommended setting on chart.
4. Replace shielding gas cylinder.
<&77&)%,77%#,2*$>%/(*4,'$"&8#%).*8*Y*(%9",38&#"83%&(%#*(Y"4"83%$.*%*H'"/5*8$1
Page 45<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
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D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
P"("83%?4.*5,$"4
AC1
AC2
G
v
34
-t
1
3-4
+2
1
3-4
+2
15V
J
2 1
IGBT
PFC
5
6
4
1
3
4
12
7
19 2
1
9
11 10
8
20
OUT+
OUT
-
Switch
RECITIFIER
1
2
3
4
5
CN4
Gas valve 2
M
1
2
FAN1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
CN5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Main Board
control panel
F
Fuse
1
2
FAN2
1
2
3
4
CN3
Gas valve 1
1
2
3
CN7
M
Drawing Wire MotorWire Feed Motor
Gas Valve 1 Gas Valve 2
1
2
CN6
34
Touch Switch
1
2
3
4
CN1
*
Hall Sensor
1
2
3
4
5
6
7
CN8
Remote Control Board
1
2
3
4
5
6
7
CN1
1
2
CN3
34
Gun switch
1
2
3
4
5
6
CN2
Remote control plug
M3
1
2
3
4
5
6
7
8
M4
1
2
3
4
5
6
7
8
9
10
11
CN1
Operation panel
LCD screen1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
CN1
S2 S1
21
3
VR1A
21
3
VR3A
21
3
VR2A
FAN2
FAN1
Page 46 <&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1 Item 63621
?@<6AO P6GQCER%ACS?
ACR%0%?ACTU
TVEA;VG? PC;6 D@CEA6E@ET6
S,($ Q*#4("/$"&8 k$>
1 Housing 1
2 Handle Base 1
3 Handle Cover 1
4 Hinge 2
5 Hinge Pin 2
6 Door 1
7 Latch 1
8 Panel 1
9 PFC Inductor 1
10 Spool 1
11 Remote Control PCB 1
12 Wire Feed Mechanism 1
13 Foot Pedal Connector 1
14 Air Connector 1
15 Cover 1
16 Display PCB 1
17 Display 1
18 Screen Cover 1
19 Screen Frame 1
20 MIG Welding Gun 1
21 Front Handle Cover 1
22 Front Panel 1
23 Control Panel 1
24 Side Knob 2
25 Knob 1
26 Storage Door 1
27 Switch 1
28 Air Connector 1
29 Air Fitting 1
30 Quick Connector 2
31 Ground Clamp 1
32 Electrode Holder 1
S,($ Q*#4("/$"&8 k$>
33 Wire Feed Connector 1
34 Air Connector 1
35 Output Inductor 1
36 Air Connector 3
37 Solenoid Valve 2
38 Base 1
39 Insulating Board 1
40 Main PCB 1
41 Control PCB 1
42 Fast Recovery Diode 6
43 Air Duct 1
44 Rectifier Radiator Bracket 1
45 Rectifier Radiator 1
46 Fan 1
47 Transformer 1
48 IGBT 2
49 Heatsink 1
50 Fast Recovery Diode 2
51 IGBT Radiator Bracket 1
52 IGBT Radiator 1
53 Bridge Rectifier 2
54 IGBT 4
55 IGBT Radiator 2
56 Fan 1
57 Threaded Y-connector 1
58 120 VAC Power Cord 1
59 Rear Panel 1
60 Rear Handle Cover 1
61 Power Connector 1
62 Overload Protector 1
63 Rear Panel 1
64 240 VAC Power Cord 1
S,($#%G"#$%,89%Q",3(,5
SG6@?6%;6@Q%AB6%<VGGVPCER%T@;6<FGGO
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS
QUALIFIED 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
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY
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.
S,($#%G"#$
;*4&(9%S(&9'4$\#%?*(",7%E'5+*(%B*(*-%
E&$*- If product has no serial number, record month and year of purchase instead.
E&$*- Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
Page 47<&(%$*4.8"4,7%H'*#$"&8#I%/7*,#*%4,77%JKLLLKMLNKNMJL1Item 63621
?@<6AO
P6GQCER%ACS?
D@CEA6E@ET6 ACR%0%?ACTU TVEA;VG?PC;6
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1
2345
6
7
10 912 11 815 141617
18
19
20
21
22
23
26
24
25
27 3231
28 29 30 3534 36 37 43
38 44 45
46
47
4239 40 41
48
49
52
51
55
63 62 61
57
56
60 59
58
50
54
53
13
64
33
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-380-0318
G"5"$*9%V8*%O*,(%P,((,8$>
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 this product is free from defects in materials and workmanship for the
period of one year from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, 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 OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES 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.

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