Miller Electric OM-180 800 Owner`s manual

OM-264 152B
Processes
Multiprocess Welding
Description
MPi 180
CE
File: Multiprocess
Visit our website at
www.MillerWelds.com
2013−08
From Miller to You
Thank you and congratulations on choosing Miller. Now you can get the
job done and get it done right. We know you don’t have time to do it any
other way.
That’s why when Niels Miller first started building arc welders in 1929,
he made sure his products offered long-lasting value and superior quality.
Like you, his customers couldn’t afford anything less. Miller products had
to be more than the best they could be. They had to be the best you could
buy.
Today, the people that build and sell Miller products continue the
tradition. They’re just as committed to providing equipment and service
that meets the high standards of quality and value established in 1929.
This Owner’s Manual is designed to help you get the most out of your
Miller products. Please take time to read the Safety precautions. They will
help you protect yourself against potential hazards on the worksite. We’ve
made installation and operation quick and easy. With Miller you can
count on years of reliable service with proper maintenance. And if for
some reason the unit needs repair, there’s a Troubleshooting section that
will help you figure out what the problem is. The parts list will then help
you to decide which exact part you may need to fix the problem.
Warranty and service information for your particular model are also
provided.
Miller Electric manufactures a full line of
welders and welding related equipment. For
information on other quality Miller products, contact your local Miller
distributor to receive the latest full line catalog or individual catalog sheets.
Working as hard as you do
− every power source from
Miller is backed by the most
hassle-free warranty in the
business.
TABLE OF CONTENTS
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3. Additional Symbols For Installation, Operation, And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4. California Proposition 65 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5. Principal Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6. EMF Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2 − DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1. Additional Safety Symbols And Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2. Miscellaneous Symbols And Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3 − SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1. Serial Number And Rating Label Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3. Duty Cycle And Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4. Volt-Ampere Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5. Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4 − INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1. Selecting A Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2. Installing Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3. Weld Output Terminals And Selecting Cable Sizes* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4. Process/Polarity Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5. Changing Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6. Installing Wire Spool And Adjusting Hub Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7. Changing Drive Rolls And Wire Inlet Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-8. Aligning Drive Rolls and Wire Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-9. Electrical Service Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10. Connecting 1-Phase 230 VAC Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-11. Threading Welding Wire And Adjusting Pressure Roll Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5 − OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1. Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2. Preparing Unit For Stick Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3. Preparing Unit For TIG Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4. Preparing Unit For Manual MIG (GMAW And FCAW) Welding Process . . . . . . . . . . . . . . . . . . . . . . . .
5-5. Slope Time And Burnback Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6. Fuse F1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7. Preparing Unit For Synergic MIG (GMAW And FCAW) Welding Process . . . . . . . . . . . . . . . . . . . . . . .
5-8. Welding Wire Loading Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9. Shielding Gas Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6 − MAINTENANCE & TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1. Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2. Welding Gun And Wire Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3. Unit Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7 − ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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1
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3
4
4
4
5
5
7
8
8
8
8
9
10
11
11
12
13
13
14
15
16
17
17
18
20
21
21
22
23
24
25
25
26
27
27
28
28
28
28
29
32
TABLE OF CONTENTS
SECTION 8 − MIG WELDING (GMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1. Typical MIG Process Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2. Typical MIG Process Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-3. Holding And Positioning Welding Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-4. Conditions That Affect Weld Bead Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-5. Gun Movement During Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-6. Poor Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-7. Good Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-8. Troubleshooting − Excessive Spatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-9. Troubleshooting − Porosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-10. Troubleshooting − Excessive Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-11. Troubleshooting − Lack Of Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-12. Troubleshooting − Incomplete Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-13. Troubleshooting − Burn-Through . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-14. Troubleshooting − Waviness Of Bead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-15. Troubleshooting − Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-16. Common MIG Shielding Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-17. Troubleshooting Guide For Semiautomatic Welding Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9 − STICK WELDING (SMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 10 − SELECTING AND PREPARING A
TUNGSTEN FOR DC OR AC WELDING
WITH INVERTER MACHINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-1. Selecting Tungsten Electrode (Wear Clean Gloves To Prevent Contamination Of Tungsten) . . . . . .
10-2. Preparing Tungsten Electrode For DC Electrode Negative (DCEN) Welding
Or AC Welding With Inverter Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 11 − GUIDELINES FOR TIG WELDING (GTAW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1. Positioning The Torch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-2. Torch Movement During Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-3. Positioning Torch Tungsten For Various Weld Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 12 − PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY
34
34
35
36
37
38
38
38
39
39
39
40
40
40
41
41
42
42
44
51
51
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52
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53
53
54
DECLARATION OF CONFORMITY
for European Community (CE marked) products.
ITW Welding Products Italy S.r.l Via Privata Iseo 6/E, 20098 San Giuliano M.se, (MI) Italy declares that
the product(s) identified in this declaration conform to the essential requirements and provisions of
the stated Council Directive(s) and Standard(s).
Product/Apparatus Identification:
Product
Stock Number
MPi 180 230VAC
059016009
Council Directives:
·2006/95/EC Low Voltage
·2004/108/EC Electromagnetic Compatibility
·2011/65/EU Restriction of the use of certain hazardous substances in electrical and electronic equipment
Standards:
·IEC 60974­1 Arc Welding Equipment ­ Welding Power Sources: edition 3, 2005­07.
·IEC 60974­5 Arc Welding Equipment – Wire Feeders: edition 2, 2007­11.
·IEC 60974­10 Arc Welding Equipment ­ Electromagnetic Compatibility Requirements: edition 2.0, 2007­08.
·EN 50445:2008 Product family standard to demonstrate compliance of equipment for resistance welding, arc weld­
ing and allied processes with the basic restrictions related to human exposure to
electromagnetic fields
(0Hz­300Hz)
EU Signatory:
May 15th , 2013
___________________________________________________________________________________
Massimigliano Lavarini
Date of Declaration
ELECTRONIC ENGINEER R&D TECH. SUPPORT
956 172 109
SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING
som 2011−10
7
Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions.
1-1. Symbol Usage
DANGER! − Indicates a hazardous situation which, if
not avoided, will result in death or serious injury. The
possible hazards are shown in the adjoining symbols
or explained in the text.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible
hazards are shown in the adjoining symbols or explained in the text.
NOTICE − Indicates statements not related to personal injury.
. Indicates special instructions.
This group of symbols means Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions to avoid the
hazards.
1-2. Arc Welding Hazards
The symbols shown below are used throughout this manual
to call attention to and identify possible hazards. When you
see the symbol, watch out, and follow the related instructions
to avoid the hazard. The safety information given below is
only a summary of the more complete safety information
found in the Safety Standards listed in Section 1-5. Read and
follow all Safety Standards.
Only qualified persons should install, operate, maintain, and
repair this unit.
During operation, keep everybody, especially children, away.
D Always verify the supply ground − check and be sure that input
power cord ground wire is properly connected to ground terminal in
disconnect box or that cord plug is connected to a properly
grounded receptacle outlet.
D When making input connections, attach proper grounding conductor first − double-check connections.
D Keep cords dry, free of oil and grease, and protected from hot metal
and sparks.
D Frequently inspect input power cord for damage or bare wiring −
replace cord immediately if damaged − bare wiring can kill.
D Turn off all equipment when not in use.
D Do not use worn, damaged, undersized, or poorly spliced cables.
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on. In semiautomatic or automatic
wire welding, the wire, wire reel, drive roll housing,
and all metal parts touching the welding wire are
electrically live. Incorrectly installed or improperly
grounded equipment is a hazard.
D Do not touch live electrical parts.
D Wear dry, hole-free insulating gloves and body protection.
D Insulate yourself from work and ground using dry insulating mats
or covers big enough to prevent any physical contact with the work
or ground.
D Do not use AC output in damp areas, if movement is confined, or if
there is a danger of falling.
D Use AC output ONLY if required for the welding process.
D If AC output is required, use remote output control if present on
unit.
D Additional safety precautions are required when any of the following electrically hazardous conditions are present: in damp
locations or while wearing wet clothing; on metal structures such
as floors, gratings, or scaffolds; when in cramped positions such
as sitting, kneeling, or lying; or when there is a high risk of unavoidable or accidental contact with the workpiece or ground. For these
conditions, use the following equipment in order presented: 1) a
semiautomatic DC constant voltage (wire) welder, 2) a DC manual
(stick) welder, or 3) an AC welder with reduced open-circuit voltage. In most situations, use of a DC, constant voltage wire welder
is recommended. And, do not work alone!
D Disconnect input power or stop engine before installing or
servicing this equipment. Lockout/tagout input power according to
OSHA 29 CFR 1910.147 (see Safety Standards).
D Properly install, ground, and operate this equipment according to
its Owner’s Manual and national, state, and local codes.
D Do not drape cables over your body.
D If earth grounding of the workpiece is required, ground it directly
with a separate cable.
D Do not touch electrode if you are in contact with the work, ground,
or another electrode from a different machine.
D Do not touch electrode holders connected to two welding machines at the same time since double open-circuit voltage will be
present.
D Use only well-maintained equipment. Repair or replace damaged
parts at once. Maintain unit according to manual.
D Wear a safety harness if working above floor level.
D Keep all panels and covers securely in place.
D Clamp work cable with good metal-to-metal contact to workpiece
or worktable as near the weld as practical.
D Insulate work clamp when not connected to workpiece to prevent
contact with any metal object.
D Do not connect more than one electrode or work cable to any
single weld output terminal. Disconnect cable for process not in
use.
SIGNIFICANT DC VOLTAGE exists in inverter welding power sources AFTER removal of input power.
D Turn Off inverter, disconnect input power, and discharge input
capacitors according to instructions in Maintenance Section
before touching any parts.
HOT PARTS can burn.
D Do not touch hot parts bare handed.
D Allow cooling period before working on equipment.
D To handle hot parts, use proper tools and/or
wear heavy, insulated welding gloves and
clothing to prevent burns.
OM-264 152 Page 1
FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health.
D Keep your head out of the fumes. Do not breathe the fumes.
D If inside, ventilate the area and/or use local forced ventilation at the
arc to remove welding fumes and gases.
D If ventilation is poor, wear an approved air-supplied respirator.
D Read and understand the Material Safety Data Sheets (MSDSs)
and the manufacturer’s instructions for metals, consumables,
coatings, cleaners, and degreasers.
D Work in a confined space only if it is well ventilated, or while
wearing an air-supplied respirator. Always have a trained watchperson nearby. Welding fumes and gases can displace air and
lower the oxygen level causing injury or death. Be sure the breathing air is safe.
D Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can react with vapors to form
highly toxic and irritating gases.
D Do not weld on coated metals, such as galvanized, lead, or
cadmium plated steel, unless the coating is removed from the weld
area, the area is well ventilated, and while wearing an air-supplied
respirator. The coatings and any metals containing these elements
can give off toxic fumes if welded.
ARC RAYS can burn eyes and skin.
Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays
that can burn eyes and skin. Sparks fly off from the
weld.
D Wear an approved welding helmet fitted with a proper shade of
filter lenses to protect your face and eyes from arc rays and
sparks when welding or watching (see ANSI Z49.1 and Z87.1
listed in Safety Standards).
D Wear approved safety glasses with side shields under your
helmet.
D Use protective screens or barriers to protect others from flash,
glare and sparks; warn others not to watch the arc.
D Wear protective clothing made from durable, flame-resistant
material (leather, heavy cotton, or wool) and foot protection.
WELDING can cause fire or explosion.
Welding on closed containers, such as tanks,
drums, or pipes, can cause them to blow up. Sparks
can fly off from the welding arc. The flying sparks, hot
workpiece, and hot equipment can cause fires and
burns. Accidental contact of electrode to metal objects can cause
sparks, explosion, overheating, or fire. Check and be sure the area is
safe before doing any welding.
D Remove all flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.
D Do not weld where flying sparks can strike flammable material.
D Protect yourself and others from flying sparks and hot metal.
D Be alert that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas.
D Watch for fire, and keep a fire extinguisher nearby.
D Be aware that welding on a ceiling, floor, bulkhead, or partition can
cause fire on the hidden side.
D Do not weld on containers that have held combustibles, or on
closed containers such as tanks, drums, or pipes unless they are
properly prepared according to AWS F4.1 and AWS A6.0 (see
Safety Standards).
D Do not weld where the atmosphere may contain flammable dust,
gas, or liquid vapors (such as gasoline).
D Connect work cable to the work as close to the welding area as
practical to prevent welding current from traveling long, possibly
unknown paths and causing electric shock, sparks, and fire
hazards.
D Do not use welder to thaw frozen pipes.
OM-264 152 Page 2
D Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.
D Wear oil-free protective garments such as leather gloves, heavy
shirt, cuffless trousers, high shoes, and a cap.
D Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding.
D After completion of work, inspect area to ensure it is free of sparks,
glowing embers, and flames.
D Use only correct fuses or circuit breakers. Do not oversize or bypass them.
D Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B
for hot work and have a fire watcher and extinguisher nearby.
FLYING METAL or DIRT can injure eyes.
D Welding, chipping, wire brushing, and grinding
cause sparks and flying metal. As welds cool,
they can throw off slag.
D Wear approved safety glasses with side
shields even under your welding helmet.
BUILDUP OF GAS can injure or kill.
D Shut off compressed gas supply when not in use.
D Always ventilate confined spaces or use
approved air-supplied respirator.
ELECTRIC AND MAGNETIC FIELDS (EMF)
can affect Implanted Medical Devices.
D Wearers of Pacemakers and other Implanted
Medical Devices should keep away.
D Implanted Medical Device wearers should consult their doctor
and the device manufacturer before going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating
operations.
NOISE can damage hearing.
Noise from some processes or equipment can
damage hearing.
D Wear approved ear protection if noise level is
high.
CYLINDERS can explode if damaged.
Compressed gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
D Protect compressed gas cylinders from excessive heat, mechanical shocks, physical damage, slag, open flames, sparks, and arcs.
D Install cylinders in an upright position by securing to a stationary
support or cylinder rack to prevent falling or tipping.
D Keep cylinders away from any welding or other electrical circuits.
D Never drape a welding torch over a gas cylinder.
D Never allow a welding electrode to touch any cylinder.
D Never weld on a pressurized cylinder − explosion will result.
D Use only correct compressed gas cylinders, regulators, hoses,
and fittings designed for the specific application; maintain them
and associated parts in good condition.
D Turn face away from valve outlet when opening cylinder valve.
D Keep protective cap in place over valve except when cylinder is in
use or connected for use.
D Use the right equipment, correct procedures, and sufficient number of persons to lift and move cylinders.
D Read and follow instructions on compressed gas cylinders,
associated equipment, and Compressed Gas Association (CGA)
publication P-1 listed in Safety Standards.
1-3. Additional Symbols For Installation, Operation, And Maintenance
FIRE OR EXPLOSION hazard.
BATTERY EXPLOSION can injure.
D Do not install or place unit on, over, or near
combustible surfaces.
D Do not install unit near flammables.
D Do not overload building wiring − be sure power supply system is
properly sized, rated, and protected to handle this unit.
D Do not use welder to charge batteries or jump
start vehicles unless it has a battery charging
feature designed for this purpose.
MOVING PARTS can injure.
D Keep away from moving parts such as fans.
D Keep all doors, panels, covers, and guards
closed and securely in place.
FALLING EQUIPMENT can injure.
D Use lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.
D Use equipment of adequate capacity to lift and
support unit.
D If using lift forks to move unit, be sure forks are long enough to
extend beyond opposite side of unit.
D Keep equipment (cables and cords) away from moving vehicles
when working from an aerial location.
D Follow the guidelines in the Applications Manual for the Revised
NIOSH Lifting Equation (Publication No. 94−110) when manually lifting heavy parts or equipment.
OVERUSE can cause OVERHEATING
D Allow cooling period; follow rated duty cycle.
D Reduce current or reduce duty cycle before
starting to weld again.
D Do not block or filter airflow to unit.
D Have only qualified persons remove doors, panels, covers, or
guards for maintenance and troubleshooting as necessary.
D Reinstall doors, panels, covers, or guards when maintenance is
finished and before reconnecting input power.
READ INSTRUCTIONS.
D Read and follow all labels and the Owner’s
Manual carefully before installing, operating, or
servicing unit. Read the safety information at
the beginning of the manual and in each
section.
D Use only genuine replacement parts from the manufacturer.
D Perform maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
H.F. RADIATION can cause interference.
FLYING SPARKS can injure.
D Wear a face shield to protect eyes and face.
D Shape tungsten electrode only on grinder with
proper guards in a safe location wearing proper
face, hand, and body protection.
D Sparks can cause fires — keep flammables away.
STATIC (ESD) can damage PC boards.
D
D
D
D
D Put on grounded wrist strap BEFORE handling
boards or parts.
D Use proper static-proof bags and boxes to
store, move, or ship PC boards.
ARC WELDING can cause interference.
MOVING PARTS can injure.
D Keep away from moving parts.
D Keep away from pinch points such as drive
rolls.
WELDING WIRE can injure.
D Do not press gun trigger until instructed to do
so.
D Do not point gun toward any part of the body,
other people, or any metal when threading
welding wire.
D High-frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communications equipment.
D Have only qualified persons familiar with
electronic equipment perform this installation.
The user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation.
If notified by the FCC about interference, stop using the
equipment at once.
Have the installation regularly checked and maintained.
Keep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.
D
D
D
D
D Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
D Be sure all equipment in the welding area is
electromagnetically compatible.
To reduce possible interference, keep weld cables as short as
possible, close together, and down low, such as on the floor.
Locate welding operation 100 meters from any sensitive electronic equipment.
Be sure this welding machine is installed and grounded
according to this manual.
If interference still occurs, the user must take extra measures
such as moving the welding machine, using shielded cables,
using line filters, or shielding the work area.
OM-264 152 Page 3
1-4. California Proposition 65 Warnings
Welding or cutting equipment produces fumes or gases
which contain chemicals known to the State of California to
cause birth defects and, in some cases, cancer. (California
Health & Safety Code Section 25249.5 et seq.)
This product contains chemicals, including lead, known to
the state of California to cause cancer, birth defects, or other
reproductive harm. Wash hands after use.
1-5. Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
is available as a free download from the American Welding Society at
http://www.aws.org or purchased from Global Engineering Documents
(phone: 1-877-413-5184, website: www.global.ihs.com).
Safe Practices for the Preparation of Containers and Piping for Welding
and Cutting, American Welding Society Standard AWS F4.1, from Global Engineering Documents (phone: 1-877-413-5184, website:
www.global.ihs.com).
Safe Practices for Welding and Cutting Containers that have Held Combustibles, American Welding Society Standard AWS A6.0, from Global
Engineering Documents (phone: 1-877-413-5184,
website: www.global.ihs.com).
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, Quincy, MA 02269 (phone: 1-800-344-3555, website:
www.nfpa.org and www. sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 14501 George Carter Way, Suite
103, Chantilly, VA 20151 (phone: 703-788-2700, website:www.cganet.com).
Safety in Welding, Cutting, and Allied Processes, CSA Standard
W117.2, from Canadian Standards Association, Standards Sales, 5060
Spectrum Way, Suite 100, Ontario, Canada L4W 5NS (phone:
800-463-6727, website: www.csa-international.org).
Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, from American National Standards Institute,
25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, website: www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, from National Fire Protection Association,
Quincy, MA 02269 (phone: 1-800-344-3555, website: www.nfpa.org.
OSHA, Occupational Safety and Health Standards for General Industry, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,
and Part 1926, Subpart J, from U.S. Government Printing Office, Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954
(phone: 1-866-512-1800) (there are 10 OSHA Regional Offices—
phone for Region 5, Chicago, is 312-353-2220, website:
www.osha.gov).
Applications Manual for the Revised NIOSH Lifting Equation, The National Institute for Occupational Safety and Health (NIOSH), 1600
Clifton Rd, Atlanta, GA 30333 (phone: 1-800-232-4636, website:
www.cdc.gov/NIOSH).
1-6. EMF Information
Electric current flowing through any conductor causes localized electric
and magnetic fields (EMF). Welding current creates an EMF field
around the welding circuit and welding equipment. EMF fields may interfere with some medical implants, e.g. pacemakers. Protective
measures for persons wearing medical implants have to be taken. For
example, restrict access for passers−by or conduct individual risk assessment for welders. All welders should use the following procedures
in order to minimize exposure to EMF fields from the welding circuit:
1. Keep cables close together by twisting or taping them, or using a
cable cover.
2. Do not place your body between welding cables. Arrange cables
to one side and away from the operator.
3. Do not coil or drape cables around your body.
OM-264 152 Page 4
4. Keep head and trunk as far away from the equipment in the
welding circuit as possible.
5. Connect work clamp to workpiece as close to the weld as
possible.
6. Do not work next to, sit or lean on the welding power source.
7. Do not weld whilst carrying the welding power source or wire
feeder.
About Implanted Medical Devices:
Implanted Medical Device wearers should consult their doctor and the
device manufacturer before performing or going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating operations.
If cleared by your doctor, then following the above procedures is recommended.
SECTION 2 − DEFINITIONS
2-1. Additional Safety Symbols And Definitions
. Some symbols are found only on CE products.
Warning! Watch Out! There are possible hazards as shown by the symbols.
Safe1 2012−05
Wear dry insulating gloves. Do not touch electrode with bare hand. Do not wear wet or damaged gloves.
Safe2 2012−05
Protect yourself from electric shock by insulating yourself from work and ground.
Safe3 2012−05
Keep your head out of the fumes.
Safe6 2012−05
Use forced ventilation or local exhaust to remove the fumes.
Safe8 2012−05
Use ventilating fan to remove fumes.
Safe10 2012−05
Keep flammables away from welding. Do not weld near flammables.
Safe12 2012−05
Welding sparks can cause fires. Have a fire extinguisher nearby, and have a watchperson ready to use it.
Safe14 2012−05
Do not weld on drums or any closed containers.
Safe16 2012−05
Do not remove or paint over (cover) the label.
Safe20 2012−05
OM-264 152 Page 5
Disconnect input plug or power before working on machine.
Safe5 2012−05
Do not discard product with general waste.
Reuse or recycle Waste Electrical and Electronic Equipment (WEEE) by disposing at a designated collection
facility.
Contact your local recycling office or your local distributor for further information.
Safe37 2012−05
Disconnect input plug or power before working on machine.
Safe30 2012−05
Become trained and read the instructions and labels before working on machine.
Safe35 2012−05
?
?
V
A
Consult rating label for input power requirements.
Safe34 2012−05
Drive rolls can injure fingers.
Safe32 2012−05
Welding wire and drive parts are at welding voltage during operation − keep hands and metal objects away.
Safe33 2012−05
Wear hat and safety glasses. Use ear protection and button shirt
collar. Use welding helmet with correct shade of filter. Wear complete
body protection.
Safe38 2012−05
Become trained and read the instructions before working on the
machine or welding.
Safe40 2012−05
3
OM-264 152 Page 6
1
Move jumper links as shown on inside label to match input voltage at
job site. Include extra length in grounding conductor and connect
grounding conductor first. Connect line input conductors as shown on
inside label. Double-check all connections, jumper link positions, and
input voltage before applying power.
Safe49 2012−05
2-2. Miscellaneous Symbols And Definitions
. Some symbols are found only on CE products.
A
U1
I2
IP
V
Volts
Alternating Current
(AC)
Direct Current
(DC)
Remote
On
Off
Protective Earth
(Ground)
Line Connection
Single Phase
Static Frequency
ConverterTransformerRectifier
Single Phase
Gas Metal Arc
Welding (GMAW)
Amperes
I1max
Rated Maximum
Supply Current
Rated Welding
Current
X
Duty Cycle
Percent
Degree Of
Protection
Fuse
Slope Time
Shielded Metal Arc
Welding (SMAW)
Gas Input
Gas Output
Voltage Input
Wire Feed
Hertz
Input
Gas Tungsten Arc
Welding (GTAW)
Read Operator’s
Manual
Wire Burnback
Control
Diameter
Increase/Decrease
Hz
I1eff
U2
Primary Voltage
Maximum Effective
Supply Current
U0
Conventional Load
Voltage
Rated No Load
Voltage (Average)
Notes
OM-264 152 Page 7
SECTION 3 − SPECIFICATIONS
3-1. Serial Number And Rating Label Location
The serial number and rating information for this product is located on the bottom . Use rating label to determine input power requirements and/or rated
output. For future reference, write serial number in space provided on back cover of this manual.
Operating Temperature Range: −10 C (14 F) to 40 C (104 F). Ratings were developed at an ambient temperature of 20 C to 25 C.
3-2. Specifications
Model
Input Power
Single
Phase AC
50/60 Hz
Voltage
230 Volts
MIG
MPi 180
230 Volts
TIG
230 Volts
STICK
Max. Open
Circuit
Voltage
Rated Output
100%
60%
20%
90 A
18.5 V
115 A
19.8 V
180 A
23.0 V
100%
60%
25%
90 A
13.6 V
115 A
14.6 V
175 A
17.0 V
100%
60%
20%
80 A
23.2 V
100 A
24.0 V
175 A
27.0 V
Input Input
KW Dimension
Amperage/Voltage KVA
Range DC
(mm)
30 V
30 A - 180 A
15.5 V - 23.0 V
58 V
5 A - 175 A
10.2 V - 17.0 V
58 V
5 A - 175 A
20.2 V - 27.0 V
7.6
6.0
L = 548
W = 237
H = 365
Weight
(Kg)
15.2 Kg
3-3. Duty Cycle And Overheating
Duty Cycle is percentage of 10
minutes that unit can weld at rated
load without overheating.
240
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
WELDING AMPERES
210
180
130
NOTICE − Exceeding duty cycle
can damage unit or gun and void
warranty.
100
90
50
0
10
20
30
40
50
60
70
80
90
100
% DUTYCYCLE
20% Duty Cycle At 180 Amperes
2 Minutes Welding
60% Duty Cycle At 115 Amperes
8 Minutes Resting
6 Minutes Welding
4 Minutes Resting
100% Duty Cycle At 90 Amperes
Continuous Welding
Overheating
A or V
0
15
Minutes
OR
Reduce Duty Cycle
sduty1 5/95
OM-264 152 Page 8
3-4. Volt-Ampere Curves
The volt-ampere curves show the minimum and maximum voltage and amperage output capabilities of the welding power source. Curves of other
settings fall between the curves shown.
DC Volts
A. MIG
DCAmperes
DC Volts
B. TIG/Stick
DCAmperes
OM-264 152 Page 9
3-5. Environmental Specifications
A. IP Rating
IP Rating
Operating Temperature Range
IP22S
This equipment is designed for indoor use and is not intended to be
used or stored outside.
14 to 104F (−10 to 40C)
B. Information On Electromagnetic Fields (EMF)
!
This equipment shall not be used by the general public as the EMF limits for the general public might be exceeded during welding.
This equipment is built in accordance with EN 60974−1 and is intended to be used only in an occupational environment (where the general public
access is prohibited or regulated in such a way as to be similar to occupational use) by an expert or an instructed person.
Wire feeders and ancillary equipment (such as torches, liquid cooling systems and arc striking and stabilizing devices) as part of the welding
circuit may not be a major contributor to the EMF. See the Owner’s Manuals for all components of the welding circuit for additional EMF exposure
information.
S
S
The EMF assessment on this equipment was conducted at 0.5 meter.
At a distance of 1 meter the EMF exposure values were less than 20% of the permissible values.
ce-emf 1 2010-10
C. Information On Electromagnetic Compatibility (EMC)
!
This Class A equipment is not intended for use in residential locations where the electrical power is provided by the public low
voltage supply system. There can be potential difficulties in ensuring electromagnetic compatibility in those locations, due to conducted as well as radiated disturbances.
!
This equipment does not comply with IEC 61000−3−12. If it is connected to a public low voltage system, it is the responsibility of
the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment can be connected.
ce-emc 2 2011-09
Notes
OM-264 152 Page 10
SECTION 4 − INSTALLATION
4-1. Selecting A Location
!
Do not move or operate unit
where it could tip.
1
Line Disconnect Device
Locate unit near correct input power supply.
Airflow Distance
Requirements
!
Special installation may be
required where gasoline or
volatile liquids are present −
see NEC Article 511 or CEC
Section 20.
1
460 mm
(18 in.)
460 mm
(18 in.)
Ref. 800 402-A / 956172107_4-A
OM-264 152 Page 11
4-2. Installing Gas Supply
Obtain gas cylinder and chain to
running gear, wall, or other
stationary support so cylinder
cannot fall and break off valve.
1
1
Cap
2
Cylinder Valve
2
Remove cap, stand to side of
valve, and open valve slightly. Gas
flow blows dust and dirt from valve.
Close valve.
3
4
3
Cylinder
4
Regulator/Flowmeter
Install so face is vertical.
Argon Gas Or Mixed Gas
OR
1
5
7
2
3
8
9
CO2 Gas
5
Regulator/Flowmeter Gas
Hose Connection
6
Welding Power Source Gas
Hose Connection
Connect supplied gas hose
between regulator/flowmeter gas
hose connection, and fitting on
rear of welding power source.
7
Flow Adjust
Typical flow rate is between 12-15
liters per minute. Check wire
manufacturer’s
recommended
flow rate.
8
9
CO2 Adapter (Customer
Supplied)
O-Ring (Customer Supplied)
Install adapter with O-ring between
regulator/flowmeter and CO2
cylinder.
6
Rear Panel
956172107_1-A
OM-264 152 Page 12
4-3. Weld Output Terminals And Selecting Cable Sizes*
NOTICE − The Total Cable Length in Weld Circuit (see table below) is the combined length of both weld cables. For example, if the power source is
30 m (100 ft) from the workpiece, the total cable length in the weld circuit is 60 m (2 cables x 30 m). Use the 60 m (200 ft) column to determine cable
size.
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
Not Exceeding***
Weld Output
Terminals
!
Turn off power before connecting to
weld output terminals.
!
Do not use worn,
damaged,
undersized, or poorly
spliced cables.
Positive
(+)
60 m
(200 ft)
70 m
(250 ft)
90 m
(300 ft)
105 m
(350 ft)
120 m
(400 ft)
10 − 60%
Duty
Cycle
60 − 100%
Duty
Cycle
mm2 (AWG)
mm2 (AWG)
100
20 (4)
20 (4)
20 (4)
30 (3)
35 (2)
50 (1)
60 (1/0)
60 (1/0)
150
30 (3)
30 (3)
35 (2)
50 (1)
60 (1/0)
70 (2/0)
95 (3/0)
95 (3/0)
200
30 (3)
35 (2)
50 (1)
60 (1/0)
70 (2/0)
95 (3/0)
120 (4/0)
120 (4/0)
250
35 (2)
50 (1)
60 (1/0)
70 (2/0)
95 (3/0)
120 (4/0)
2x70
(2x2/0)
2x70
(2x2/0)
Welding
Amperes
Negative
(−)
45 m
(150 ft)
30 m (100 ft) or Less
10 − 100% Duty Cycle
mm2 (AWG)
Ref. 956172107_6-A
* This
chart is a general guideline and may not suit all applications. If cable overheats, use next size larger cable.
**Weld cable size is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
***For distances longer than those shown in this guide, call a factory applications representative.
Milan Ref. S-0007-J 2011−07
4-4. Process/Polarity Table
Process
Polarity
Cable Connections
Cable To Gun
Cable To Work
GMAW Solid wire with
shielding gas
DCEP Reverse polarity
Connect to positive (+) output terminal
Connect to negative (−) output terminal
FCAW Self-shielding wire
and no shielding gas
DCEN Straight polarity
Connect to negative (−) output terminal
Connect to positive (+) output terminal
OM-264 152 Page 13
4-5. Changing Polarity
1
Lead Connections For Direct
Current Electrode Positive
(DCEP)
2
Lead Connections For Direct
Current Electrode Negative
(DCEN)
Always read and follow wire
manufacturer’s
recommended
polarity and see Section 4-4.
1
2
956172107_2-A
OM-264 152 Page 14
4-6. Installing Wire Spool And Adjusting Hub Tension
1
Wire Spool 5 kg
2
Handwheel
Allows adjustment of hub tension.
Turn handwheel clockwise to increase tension.
3
Spool Holder Cap
Tighten to secure wire spool.
1
3
2
Tools Needed:
956172107_9-A
OM-264 152 Page 15
4-7. Changing Drive Rolls And Wire Inlet Guide
1
Setscrew
2
Inlet Wire Guide
Loosen setscrew. Slide tip of guide
as close to drive rolls as possible
without touching. Tighten setscrew.
3
Drive Roll
The drive roll consists of two different sized grooves. The stamped
markings on the end surface of the
drive roll refers to the groove on the
opposite side of the drive roll. The
groove closest to the motor shaft is
the proper groove to thread welding
wire.
4
Drive Roll Securing Cap
Turn cap clockwise to secure drive
roll.
1
2
4
3
Tools Needed:
2.5 mm
956172107_8-A
OM-264 152 Page 16
4-8. Aligning Drive Rolls and Wire Guide
!
3
1
Correct
Incorrect
4
2
5
Turn off and disconnect input power
View is from top of drive rolls
looking down with pressure
assembly open.
1
2
3
4
5
Drive Roll Securing Nut
Drive Roll
Wire Guide
Welding Wire
Drive Gear
Insert screwdriver, and turn screw
in or out until drive roll groove lines
up with wire guide.
Close pressure roll assembly.
Tools Needed:
2.5 mm
Ref. 800 412-A
4-9. Electrical Service Guide
Elec Serv 2011−08
Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These
recommendations are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source.
50/60 Hz
Single Phase
230
Input Voltage (V)
33
Input Amperes (A) At Rated Output
Max Recommended Standard Fuse Rating In
Min Input Conductor Size In
Amperes1
Time-Delay Fuses2
40
Normal Operating Fuses 3
50
AWG 4
Max Recommended Input Conductor Length In Meters (Feet)
Min Grounding Conductor Size In mm2 (AWG) 4
4 (14)
13
(42)
4 (14)
Reference: 2011 National Electrical Code (NEC) (including article 630)
1 If a circuit breaker is used in place of a fuse, choose a circuit breaker with time-current curves comparable to the recommended fuse.
2 “Time-Delay” fuses are UL class “RK5” . See UL 248.
3 “Normal Operating” (general purpose - no intentional delay) fuses are UL class “K5” (up to and including 60 amps), and UL class “H” ( 65 amps and
above).
4 Conductor data in this section specifies conductor size (excluding flexible cord or cable) between the panelboard and the equipment per NEC Table
310.15(B)(16). If a flexible cord or cable is used, minimum conductor size may increase. See NEC Table 400.5(A) for flexible cord and cable
requirements.
OM-264 152 Page 17
4-10. Connecting 1-Phase 230 VAC Input Power
1
3
=GND/PE Earth Ground
7
2
4
L1
L2
5
6
1
Tools Needed:
input4 2012−05 − Ref. 803 766-C / 956172107_5-A
OM-264 152 Page 18
4-10. Connecting 1-Phase 230 VAC Input Power (Continued)
!
Installation must meet all National and
Local Codes − have only qualified persons make this installation.
See rating label on unit and check input voltage available at site.
1
Input Power Cord
!
Disconnect and lockout/tagout input
power before connecting input conductors from unit. Follow established
procedures regarding the installation
and removal of lockout/tagout
devices.
2
Disconnect Device (switch shown in the
OFF position)
3
Disconnect Device Grounding Terminal
4
Disconnect Device Line Terminals
5
Black And White Input Conductor (L1
And L2)
6
Green Or Green/Yellow Grounding
Conductor
!
Always connect green or green/yellow
conductor to supply grounding terminal first, and never to a line terminal.
Connect green or green/yellow grounding
conductor to disconnect device grounding
terminal first.
Connect input conductors L1 and L2 to disconnect device line terminals.
7
Over-Current Protection
Select type and size of over-current protection using Section 4-9 (fused disconnect
switch shown).
Close and secure door on disconnect device.
Follow established lockout/tagout procedures to put unit in service.
input4 2012−05 − 803 766-C / 956172107_5-A
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.
OM-264 152 Page 19
4-11. Threading Welding Wire And Adjusting Pressure Roll Tension
1
2
3
4
5
6
7
Wire Spool
Welding Wire
Inlet Wire Guide
Pressure Adjustment Knob
Drive Roll
Outlet Wire Guide
Gun Conduit Cable
Lay gun cable out straight.
3
7
Tools Needed:
1
2
5
4
6
. Hold wire tightly to keep it
from unraveling.
150 mm
(6 in.)
Open pressure assembly.
Pull and hold wire; cut off end.
. Use pressure indicator
Tighten
scale to set a desired
drive roll pressure.
1
2
3
4
Close and tighten pressure
assembly, and let go of wire.
Push wire thru guides into gun;
continue to hold wire.
Pressure
Indicator
Scale
Remove gun nozzle and contact tip.
Tighten
WOOD
Press gun trigger until wire
comes out of gun. Reinstall
contact tip and nozzle
OM-264 152 Page 20
1
2
3
4
Feed wire to check drive roll pressure.
Tighten knob enough to prevent slipping.
Cut off wire. Close
and latch door.
Ref. 956172107_3-B
SECTION 5 − OPERATION
5-1. Controls
1
Power Switch S1
Use switch to turn power on and off.
2
Displays actual output current value during welding, and displays selected parameter from position of
Process Selector control while in
idle mode.
5
3 4
6
2
Digital Display Meter (Left)
3
Power Indicator Light (Green
LED)
PL1 is lit when power is on.
7
12
8
4
High Temperature Shutdown
Light (Yellow LED)
PL2 lights up when unit overheats
and shuts down.
5
Over−Current Light
PL3 is lit if an over−current condition is present.
6
Digital Display Meter (Right)
Displays actual arc voltage value
during welding, and displays selected parameter from position of
Process Selector control while in
idle mode.
7
11
Process Selector Control
Knob
(TIG/Stick/MIG/Synergic MIG
Processes)
. Unit will display “Err” (error) on
10
left display and “POS” on right
display if Process Selector
control knob is located in a position that is not allowed.
9
8
9
1
Hot Start (Stick)/Arc Voltage
(MIG)/Output Power
Percentage (SYN MIG)
Control Knob
Positive Weld Output
Receptacle
For Stick welding, connect electrode cable to this receptacle. For
TIG welding, connect work cable to
this receptacle.
10 Negative Weld Output
Receptacle
For Stick and MIG welding, connect
work cable to this receptacle. For
TIG welding, connect torch cable to
this receptacle.
11 MIG Torch Connection
Connection for Euro style MIG gun.
12 Amperage (TIG/Stick)/Wire
Feed Speed (MIG/SYN MIG)
Control Knob
956172107_6-A
OM-264 152 Page 21
5-2. Preparing Unit For Stick Welding
2
1
3
5
4
Ref. 956172107_13-A
1
Digital Display Meter (Left) (See
Section 5-1)
is 160A and control is set to 0, starting
amperage is 160A. If control is set to
50% (max.) starting amperage would
be 240A, but maximum amperage in
hot start is set to 230A. In this case,
starting amperage would be 230A.
Displays preset amperage value.
2
3
Process Selector Control Knob (See
Section 5-1)
Digital Display Meter (Right) (See
Section 5-1)
Displays hot start value.
4
Hot Start Control Knob (See Section
5-1)
Adjusts hot start value, this is variable from
0 to 50% of the preset amperage value.
. If preset amperage is 110A and control
is set to 0, starting amperage is 110A.
If control is set to 50% (max.) starting
amperage is 165A. If preset amperage
OM-264 152 Page 22
5
Amperage Control Knob (See
Section 5-1)
Adjusts amperage value, this is within a
range from 5A (min.) to 175A (max.).
Prepare unit for Stick welding as followings:
S Connect selectrode holder to positive
weld output receptacle.
S Connect work clamp to negative weld
output terminal.
S Turn power on.
S Allow time for unit to complete its startup
cycle
S Use the Process Selector Control knob
to select STICK process.
S Use the Amperage Control knob to set
desired amperage value. Turn knob
clockwise to increase amperage
(min. − max.).
S Use the Hot Start Contro knob to adjust
the arc starting amperage value. Turn
knob clockwise to increase
(min. − max.).
Hot Start Setting
Use Hot Start to increase output amperage
at the start of a weld to help prevent electrode sticking.
5-3. Preparing Unit For TIG Welding
2
1
3
5
4
956172107_14-A
1
Digital Display Meter (Left) (See
Section 5-1)
Displays preset amperage value.
2
3
Process Selector Control Knob (See
Section 5-1)
Digital Display Meter (Right) (See
Section 5-1)
In TIG mode this meter is not active.
4
Hot Start Control Knob (See Section
5-1)
In TIG mode this control is not active.
5
Amperage Control Knob (See
Section 5-1)
Adjusts amperage value, this is within a
range from 5A (min.) to 175A (max.).
Prepare unit for TIG welding as follows:
S Connect electrode holder to negative
weld output receptacle.
S Connect work clamp to positive weld
output terminal.
S Turn power on. Allow time for unit
complete its start up cycle.
S Use thr Process Selector control knob to
select TIG process.
S Use amperage adjustment control knob
to set desired amperage value. Rotate
knob clockwise to increase amperage
(min - max).
OM-264 152 Page 23
5-4. Preparing Unit For Manual MIG (GMAW And FCAW) Welding Process
2
1
3
5
4
956172107_15-A
1
Digital Display Meter (Left) (See
Section 5-1)
Displays wire feed speed value.
2
3
Process Selector Control Knob (See
Section 5-1)
Digital Display Meter (Right) (See
Section 5-1)
To select MIG welding proceed as follows:
S Prepare unit according to Section 4.
S Use a cable with correct adapter,
connect gun to the MIG gun connector.
S Use Process Selector control knob to
select MIG process.
S For GMAW process:
S Use Arc Voltage control knob to select
desired welding voltage. Rotate clockwise
to increase output voltage value (min. = 13
volts DC, max. = 30 volts DC).
Adjusts no−load voltage value.
S Connect wire drive lead to positive
output terminal. Connect work clamp
lead to negative output terminal. See
Section 4-4 for GMAW solid wire with
shielding gas process. See Section 4-2
for installing gas supply.
5
S For FCAW process:
Displays the no−load voltage value.
4
Arc Voltage Control Knob (See
Section 5-1)
Wire Feed Speed (WFS) Control
Knob (See Section 5-1)
Adjusts wire feed speed value.
OM-264 152 Page 24
lead to positive output terminal. See
Section 4-4 for FCAW self-shielding wire
no shielding gas process.
Connect wire drive lead to negative
output terminal. Connect work clamp
S Use Wire Feed Speed (WFS) control
knob to select desired wire feed speed.
Rotate knob clockwise to increase WFS
value (min. = 1.5 mpm, max. = 21.6 mpm).
. Without the encoder, wire feed speed
values may have small changes.
5-5. Slope Time And Burnback Settings
1
Slope Time Control Knob
Use control knob to select amount
of time that it takes to slope up/
down from initial amperage to weld
amperage. Turn knob clockwise to
increase value (min. 0 to max. 1.5
sec).
2
1
Burnback Time (BBT)
Use control knob to set time that
welding wire stays energized after
trigger is released. Turn knob
clockwise to increase value (min. 0
to max. 400 ms).
2
956172107_12-B
5-6. Fuse F1
1
Fuse F1
F1 protects wire drive motor from
overload.
1
956172107_12-B
OM-264 152 Page 25
5-7. Preparing Unit For Synergic MIG (GMAW And FCAW) Welding Process
2
1
3
5
4
956172107_16-A
1
Digital Display Meter (Left) (See
Section 5-1)
Displays a percentage of adjustment to the
preset wire feed speed value.
2
3
Process Selector Control Knob (See
Section 5-1)
Digital Display Meter (Right) (See
Section 5-1)
Displays a percentage of the adjustment to
the preset amperage value.
4
Amperage Control Knob (See
Section 5-1)
Adjusts a percentage to the adjustment of
the selected amperage in the synergic
curve. The range is from 1% min. to 100%
max. of the preset amperage, depending
on workpiece thickness. Turn knob clockwise to increase the value.
5
Wire Feed Speed (WFS) Control
Knob (See Section 5-1)
Adjusts a percentage of the adjustment to
the preset wire feed speed value. “0” value
displayed on left display means no change
to preset WFS value. Turn knob clockwise
to increase WFS within a range of 0% to
OM-264 152 Page 26
40% of preset value. Turn knov counterclockwise to decrease WFS within a range
of 0% to 40% of preset WFS value.
. Wire feed speed depends on the out-
put voltage, up to a maximum WFS of
22 mpm.
To select synergic MIG welding process,
proceed as follows:
S Prepare unit according to Section 4.
S Use a cable with correct adapter,
connect gun to the MIG gun connector.
S For GMAW process:
S Connect wire drive lead to positive
output terminal. Connect work lead to
negative output terminal. See Section
4-4 for GMAW solid wire with shielding
gas process. See Section 4-2 for
installing gas supply.
S For FCAW process:
S Connect wire drive lead to negative
output terminal. Connect work clamp
lead to positive output terminal. See
Section 4-4 for FCAW self-shielding wire
no shielding gas process.
S Use Process Selector control knob to
select desired synergic MIG process.
S Use Amperage control knob to select
desired amperage. Rotate knob
clockwise to increase the value.
. The minimum and maximum weldable
thicknesses and the relationship to the
corresponding welding parameters
(amperage/voltage) depend on the selected synergic curve.
S Use WFS control knob to select desired
wire feed speed. Rotate knob clockwise
to increase WFS percentage value.
. In Synergic MIG mode, the operator
may need to adjust welding data (wire
type, wire diameter and gas type) and
only one weld parameter. Generally,
wire feed speed is adjusted and the
synergic process automatically sets
appropriate weld voltage. Synergic
welding also sets many secondary
welding parameters automatically for
improved weld quality.
5-8. Welding Wire Loading Settings
Prepare unit for welding wire loading as follows:
S Install wire spool and adjust hub
tension (see Section 4-6).
S Use proper drive rolls and wire
guide (see Section 4-7).
S Thread welding wire and adjust
pressure roll tension (see
Section 4-11).
Without starting a weld, press and
hold torch trigger for three seconds
to load welding wire.
. After pressing and holding the
torch trigger, gas valve is disabled. Welding wire will be
loaded at a wire feed value of
about 8.5 mpm. The wire feed
speed is only measured in
meters per minute.
To stop loading wire, release torch
trigger.
956172107_7-A
5-9. Shielding Gas Guide
Material
Gas Type
Note
Mild Steel
Argon + CO2 + Oxygen
Oxygen inproves arc stability
Aluminum
Argon + Helium
Higher heat input suitable for heavy sections
Stainless Steel
Copper, Nickel, and Alloys
Argon + CO2 + Oxygen
Arc stability
Argon + Oxygen
Minimum spatter
Argon + Helium
Higher heat input suitable for heavy sections
OM-264 152 Page 27
SECTION 6 − MAINTENANCE & TROUBLESHOOTING
6-1. Routine Maintenance
!
n = Check
Z = Change
~ = Clean
* To be done by Factory Authorized Service Agent
Disconnect power
before maintaining.
. Maintain more often
during severe conditions.
l = Replace
Reference
Every
3
Months
l Unreadable Labels
Every
6
Months
~ Weld Terminals
nl Weld Cables
n Apply Light Coat Of Oil
Or Grease To Drive Motor
Shaft
~ Clean Drive Rolls
OR
~ Inside Unit
6-2. Welding Gun And Wire Drive Assembly
1
Welding Gun
Check gun liner for blockage or
kinks.
2
Wire Drive Assembly
Check for jammed wire, binding
drive gear or misaligned drive rolls.
Allow cooling period. Close door.
1
2
Ref. 956172107_17-B
6-3. Unit Overload
Thermal switch TP1 located on the primary heatsink protects the unit from damage due to overheating. If TP1 has
opened due to overheating, wait for unit to cool allowing fan motor to run before trying to weld. If unit is cool and no weld
output continues, contact Factory Authorized Service Agent.
OM-264 152 Page 28
6-4. Troubleshooting
A. MIG (GMAW) Welding
Trouble
Remedy
No weld output; wire does not feed.
Be sure line disconnect switch is On (see Section 4-10).
Replace building line fuse or reset circuit breaker if open (see Section 4-10).
Secure gun trigger connections (see welding gun Owner’s Manual).
Check continuity of power switch S1 and replace if necessary.
Have Factory Authorized Service Agent check main transformer T1 for signs of winding failure. Check
continuity across windings and check for proper connections. Check secondary voltages. Replace T1
if necessary.
Have Factory Authorized Service Agent check continuity of thermostat TP1. Replace TP1 if necessary.
Have Factory Authorized Service Agent check main control board PC2 and connections, and replace if
necessary.
Have Factory Authorized Service Agent check all board connections and main control board.
No weld output; wire feeds.
Connect work clamp to get good metal to metal contact.
Replace contact tip (see welding gun Owner’s Manual).
An overload condition occurred (see Section 6-3).
Have Factory Authorized Service Agent check primary and secondary power circuit of the unit.
Have Factory Authorized Service Agent check main transformer T1 for signs of winding failure. Check
continuity across windings and check for proper connections. Check secondary voltages. Replace T1
if necessary.
Have Factory Authorized Service Agent check voltage switch(es), and replace if necessary.
Low weld output.
Connect unit to proper input voltage or check for low line voltage (see Section 4-10).
Low, high, or erratic wire speed.
Readjust front panel settings (see Section 5).
Change to correct size drive rolls (see Section 4-7).
Readjust drive roll pressure (see Section 4-11).
Replace inlet guide, contact tip, and/or liner if necessary (see welding gun Owner’s Manual).
Have Factory Authorized Service Agent check Wire Speed control, and replace if necessary.
Have Factory Authorized Service Agent check motor control board PC4 and connections, and replace
if necessary.
No wire feed.
Rotate Wire Speed control to higher setting (see Section 5).
Clear obstruction in gun contact tip or liner (see welding gun Owner’s Manual).
Readjust drive roll pressure (see Section 4-11).
Change to correct size drive rolls (see Section 4-7).
Rethread welding wire (see Section 4-11).
Check gun trigger and leads. Repair or replace gun if necessary.
Have Factory Authorized Service Agent check main control board.
OM-264 152 Page 29
B. Stick (SMAW) Welding
Trouble
Remedy
Hard starts, poor welding characterist- Use proper type and size of electrode.
ics, unusual spattering.
Check electrode polarity and reverse in necessary; check and correct poor connections
Make sure a remote control is not connected.
C. TIG (GTAW) Welding
Trouble
Remedy
Wandering arc, hard starts, poor welding Use proper type and size of tungsten.
characteristics, spattering problems.
Use properly prepared tungsten.
Check electrode polarity and reverse if necessary.
Tungsten electrode oxidizing and not Shield weld zone from drafts.
remaining bright after welding.
Check for correct type shielding gas.
Check and tighten gas fittings.
Check electrode polarity and reverse if necessary.
OM-264 152 Page 30
Notes
OM-264 152 Page 31
SECTION 7 − ELECTRICAL DIAGRAMS
Figure 7-1. Circuit Diagram For Welding Power Source
OM-264 152 Page 32
956172108-B
OM-264 152 Page 33
SECTION 8 − MIG WELDING (GMAW) GUIDELINES
mig1 2009−12
8-1. Typical MIG Process Connections
!
Weld current can damage
electronic parts in vehicles.
Disconnect both battery
cables before welding on a
vehicle. Place work clamp as
close to the weld as possible.
Regulator/
Flowmeter
Wire Feeder/
Power Source
Gun
Shielding Gas
Gas
Workpiece
Work Clamp
Ref. 801 909-A
OM-264 152 Page 34
8-2. Typical MIG Process Control Settings
. These settings are guidelines only. Material and wire type, joint design, fitup, position, shielding gas, etc. affect settings. Test welds to be sure
they comply to specifications.
Material thickness determines weld
parameters.
1/8 or 0.125 in.
Convert Material
Thickness to
Amperage (A)
(0.001 in. = 1 ampere)
0.125 in. = 125 A
.035 in
Wire
Size
Wire Size
Amperage Range
0.023 in.
30 − 90 A
0.030 in.
40 − 145 A
0.035 in.
50 − 180 A
Recommendation
Wire Speed
(Approx.)
0.023 in.
3.5 in. per ampere
3.5 x 125 A = 437 ipm
0.030 in.
2 in. per ampere
2 x 125 A = 250 ipm
0.035 in.
1.6 in. per ampere
1.6 x 125 A = 200 ipm
Select Wire Size
Select Wire Speed
(Amperage)
125 A based on 1/8 in.
material thickness
ipm = inches per minute
Low voltage: wire stubs into work
High voltage: arc is unstable (spatter)
Select Voltage
Set voltage midway between high/low voltage
Voltage controls height and
width of weld bead.
Wire speed (amperage) controls weld
penetration (wire speed = burn-off rate)
OM-264 152 Page 35
8-3. Holding And Positioning Welding Gun
. Welding wire is energized when gun trigger is pressed. Before lowering helmet and pressing trigger, be sure wire is no more than 1/2 in. (13 mm)
past end of nozzle, and tip of wire is positioned correctly on seam.
1
1
3
2
2
3
4
5
5
Hold Gun and Control Gun
Trigger
Workpiece
Work Clamp
Electrode Extension (Stickout)
1/4 to 1/2 in. (6 To 13 mm)
Cradle Gun and Rest Hand on
Workpiece
4
0-15
90
90
End View of Work Angle
Side View of Gun Angle
GROOVE WELDS
0-15
45
45
End View of Work Angle
Side View of Gun Angle
FILLET WELDS
OM-264 152 Page 36
S-0421-A
8-4. Conditions That Affect Weld Bead Shape
. Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed,
thickness of base metal, wire feed speed
(weld current), and voltage.
10
Push
10
Drag
Perpendicular
GUN ANGLES AND WELD BEAD PROFILES
Short
Normal
Long
ELECTRODE EXTENSIONS (STICKOUT)
Short
Normal
Long
FILLET WELD ELECTODE EXTENSIONS (STICKOUT)
Slow
Normal
GUN TRAVEL SPEED
Fast
S-0634
OM-264 152 Page 37
8-5. Gun Movement During Welding
. Normally, a single stringer bead is satisfactory for most narrow groove weld joints; however, for wide groove weld joints or bridging across gaps,
a weave bead or multiple stringer beads works better.
1
1
2
2
3
Stringer Bead − Steady
Movement Along Seam
Weave Bead − Side To Side
Movement Along Seam
Weave Patterns
Use weave patterns to cover a wide
area in one pass of the electrode.
3
S-0054-A
8-6.
Poor Weld Bead Characteristics
1
2
3
1
2
3
4
5
Large Spatter Deposits
Rough, Uneven Bead
Slight Crater During Welding
Bad Overlap
Poor Penetration
4
5
S-0053-A
8-7.
Good Weld Bead Characteristics
1
2
3
1
Fine Spatter
Uniform Bead
Moderate Crater During
Welding
Weld a new bead or layer for each
1/8 in. (3.2 mm) thickness in metals
being welded.
4
5
2
3
4
No Overlap
Good Penetration into Base
Metal
5
S-0052-B
OM-264 152 Page 38
8-8.
Troubleshooting − Excessive Spatter
Excessive Spatter − scattering of molten metal particles that
cool to solid form near weld bead.
S-0636
Possible Causes
Corrective Actions
Wire feed speed too high.
Select lower wire feed speed.
Voltage too high.
Select lower voltage range.
Electrode extension (stickout) too long.
Use shorter electrode extension (stickout).
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before welding.
Insufficient shielding gas at welding arc.
Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.
Dirty welding wire.
Use clean, dry welding wire.
Eliminate pickup of oil or lubricant on welding wire from feeder or liner.
Incorrect polarity.
8-9.
Check polarity required by welding wire, and change to correct polarity at welding power source.
Troubleshooting − Porosity
Porosity − small cavities or holes resulting from gas pockets
in weld metal.
S-0635
Possible Causes
Insufficient shielding gas at welding arc.
Corrective Actions
Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.
Remove spatter from gun nozzle.
Check gas hoses for leaks.
Place nozzle 1/4 to 1/2 in. (6-13 mm) from workpiece.
Hold gun near bead at end of weld until molten metal solidifies.
Wrong gas.
Use welding grade shielding gas; change to different gas.
Dirty welding wire.
Use clean, dry welding wire.
Eliminate pick up of oil or lubricant on welding wire from feeder or liner.
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, coatings, and dirt from work surface before welding.
Use a more highly deoxidizing welding wire (contact supplier).
Welding wire extends too far out of nozzle.
Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.
8-10. Troubleshooting − Excessive Penetration
Excessive Penetration − weld metal melting through base metal
and hanging underneath weld.
Excessive Penetration Good Penetration
Possible Causes
Excessive heat input.
S-0639
Corrective Actions
Select lower voltage range and reduce wire feed speed.
Increase travel speed.
OM-264 152 Page 39
8-11. Troubleshooting − Lack Of Penetration
Lack Of Penetration − shallow
fusion between weld metal and
base metal.
Lack of Penetration
Good Penetration
S-0638
Possible Causes
Corrective Actions
Improper joint preparation.
Material too thick. Joint preparation and design must provide access to bottom of groove while
maintaining proper welding wire extension and arc characteristics.
Improper weld technique.
Maintain normal gun angle of 0 to 15 degrees to achieve maximum penetration.
Keep arc on leading edge of weld puddle.
Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.
Insufficient heat input.
Select higher wire feed speed and/or select higher voltage range.
Reduce travel speed.
Incorrect polarity.
Check polarity required by welding wire, and change to correct polarity at welding power source.
8-12. Troubleshooting − Incomplete Fusion
Incomplete Fusion − failure of weld metal to fuse completely with
base metal or a preceeding weld bead.
S-0637
Possible Causes
Corrective Actions
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before
welding.
Insufficient heat input.
Select higher voltage range and/or adjust wire feed speed.
Improper welding technique.
Place stringer bead in proper location(s) at joint during welding.
Adjust work angle or widen groove to access bottom during welding.
Momentarily hold arc on groove side walls when using weaving technique.
Keep arc on leading edge of weld puddle.
Use correct gun angle of 0 to 15 degrees.
8-13. Troubleshooting − Burn-Through
Burn-Through − weld metal melting completely through base metal
resulting in holes where no metal remains.
S-0640
Possible Causes
Excessive heat input.
Corrective Actions
Select lower voltage range and reduce wire feed speed.
Increase and/or maintain steady travel speed.
OM-264 152 Page 40
8-14. Troubleshooting − Waviness Of Bead
Waviness Of Bead − weld metal that is not parallel and does not cover
joint formed by base metal.
S-0641
Possible Causes
Corrective Actions
Welding wire extends too far out of nozzle.
Be sure welding wire extends not more than 1/2 in. (13 mm) beyond nozzle.
Unsteady hand.
Support hand on solid surface or use two hands.
8-15. Troubleshooting − Distortion
Distortion − contraction of weld metal during welding that forces
base metal to move.
Base metal moves
in the direction of
the weld bead.
Possible Causes
Excessive heat input.
S-0642
Corrective Actions
Use restraint (clamp) to hold base metal in position.
Make tack welds along joint before starting welding operation.
Select lower voltage range and/or reduce wire feed speed.
Increase travel speed.
Weld in small segments and allow cooling between welds.
OM-264 152 Page 41
8-16. Common MIG Shielding Gases
This is a general chart for common gases and where they are used. Many different combinations (mixtures) of
shielding gases have been developed over the years. The most commonly used shielding gases are listed in the
following table.
Application
Gas
Spray Arc Steel
Short Circuiting Steel
Short Circuiting
Stainless Steel
Aluminum
X
Argon
X
Argon + 25% CO2
80% or greater Argon +
balance CO2 or Oxygen
X
X1
X
100% CO2
Tri-Mix2
X
1
Limited short circuiting use
2
90% HE + 7-1/2% AR + 2-1/2% CO2
8-17. Troubleshooting Guide For Semiautomatic Welding Equipment
Problem
Probable Cause
Wire feed motor operates, but Too little pressure on wire feed rolls.
wire does not feed.
Incorrect wire feed rolls.
Wire curling up in front of the
wire feed rolls (bird nesting).
Wire feeds, but no gas flows.
Remedy
Increase pressure setting on wire feed rolls.
Check size stamped on wire feed rolls, replace to match
wire size and type if necessary.
Wire spool brake pressure too high.
Decrease brake pressure on wire spool.
Restriction in the gun and/or assembly.
Check and replace cable, gun, and contact tip if
damaged. Check size of contact tip and cable liner,
replace if necessary.
Too much pressure on wire feed rolls.
Decrease pressure setting on wire feed rolls.
Incorrect cable liner or gun contact tip size.
Check size of contact tip and check cable liner length
and diameter, replace if necessary.
Gun end not inserted into drive housing properly.
Loosen gun securing bolt in drive housing and push gun
end into housing just enough so it does not touch wire
feed rolls.
Dirty or damaged (kinked) liner.
Replace liner.
Gas cylinder empty.
Replace empty gas cylinder.
Gas nozzle plugged.
Clean or replace gas nozzle.
Gas cylinder valve not open or flowmeter not adjusted.
Open gas valve at cylinder and adjust flow rate.
Restriction in gas line.
Check gas hose between flowmeter and wire feeder, and
gas hose in gun and cable assembly.
Loose or broken wires to gas solenoid.
Have Factory Authorized Service Agent repair wiring.
Gas solenoid valve not operating.
Have Factory Authorized Service Agent replace gas
solenoid valve.
Incorrect primary voltage connected to welding power Check primary voltage and relink welding power source
source.
for correct voltage.
Welding arc not stable.
OM-264 152 Page 42
Wire slipping in drive rolls.
Adjust pressure setting on wire feed rolls. Replace worn
drive rolls if necessary.
Wrong size gun liner or contact tip.
Match liner and contact tip to wire size and type.
Problem
Probable Cause
Remedy
Incorrect voltage setting for selected wire feed speed on Readjust welding parameters.
welding power source.
Loose connections at the gun weld cable or work cable. Check and tighten all connections.
Gun in poor shape or loose connection inside gun.
Repair or replace gun as necessary.
OM-264 152 Page 43
SECTION 9 − STICK WELDING (SMAW) GUIDELINES
9-1.
Stick Welding Procedure
!
Weld current starts when
electrode touches workpiece.
!
Weld current can damage
electronic parts in vehicles.
Disconnect both battery
cables before welding on a
vehicle. Place work clamp
as close to the weld as
possible.
Equipment Needed:
Tools Needed:
. Always wear appropriate per1
Constant Current
Welding Power Source
sonal protective clothing.
Workpiece
Make sure workpiece is clean before welding.
2
3
Work Clamp
Electrode
A small diameter electrode requires less current than a large
one. Follow electrode manufacturer’s instructions when setting weld
amperage (see Section 9-2).
4
5
6
5
4
Insulated Electrode Holder
Electrode Holder Position
Arc Length
Arc length is the distance from the
electrode to the workpiece. A short
arc with correct amperage will give
a sharp, crackling sound.
2
7
3
Slag
Use a chipping hammer and wire
brush to remove slag. Remove
slag and check weld bead before
making another weld pass.
6
1
7
stick 2010−02 − 151 593
OM-264 152 Page 44
6013
7014
7018
7024
Ni-Cl
308L
ALL
DEEP
EP
ALL
DEEP
6013
EP,EN
ALL
LOW
GENERAL
7014
EP,EN
ALL
MED
7018
EP
ALL
MED
SMOOTH, EASY,
FAST
LOW HYDROGEN,
STRONG
7024
EP,EN
NI-CL
EP
FLAT
HORIZ
FILLET
ALL
308L
EP
ALL
USAGE
EP
6011
AC
PENETRATION
3/32
1/8
5/32
3/16
7/32
1/4
1/16
5/64
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
3/32
1/8
5/32
DC*
6010
ELECTRODE
450
400
350
300
250
200
150
POSITION
6010
&
6011
100
50
DIAMETER
AMPERAGE
RANGE
Electrode and Amperage Selection Chart
ELECTRODE
9-2.
MIN. PREP, ROUGH
HIGH SPATTER
LOW
SMOOTH, EASY,
FASTER
LOW
CAST IRON
LOW
STAINLESS
*EP = ELECTRODE POSITIVE (REVERSE POLARITY)
EN = ELECTRODE NEGATIVE (STRAIGHT POLARITY)
Ref. S-087 985-A
9-3.
Striking an Arc
1
2
3
Electrode
Workpiece
Arc
Scratch Technique
1
2
Drag electrode across workpiece
like striking a match; lift electrode
slightly after touching work. If arc
goes out, electrode was lifted too
high. If electrode sticks to workpiece, use a quick twist to free it.
Tapping Technique
Bring electrode straight down to
workpiece; then lift slightly to start
arc. If arc goes out, electrode was
lifted too high. If electrode sticks to
workpiece, use a quick twist to free
it.
3
1
2
3
S-0049 / S-0050
OM-264 152 Page 45
9-4.
Positioning Electrode Holder
1
2
End View Of Work Angle
Side View Of Electrode Angle
1
10-30
90
2
90
Groove Welds
10-30
45
1
2
45
Fillet Welds
S-0060
9-5.
Poor Weld Bead Characteristics
1
2
3
4
5
Large Spatter Deposits
Rough, Uneven Bead
Slight Crater During Welding
Bad Overlap
Poor Penetration
4
2
3
5
1
S-0053-A
9-6.
Good Weld Bead Characteristics
1
2
3
Fine Spatter
Uniform Bead
Moderate Crater During
Welding
Weld a new bead or layer for each
1/8 in. (3.2 mm) thickness in metals
being welded.
2
3
4
5
4
5
No Overlap
Good Penetration into Base
Metal
1
S-0052-B
OM-264 152 Page 46
9-7.
Conditions That Affect Weld Bead Shape
. Weld bead shape is affected
by
electrode angle,
arc
length, travel speed, and thickness of base metal.
Angle Too Small
Correct Angle
10 - 30
Angle Too Large
Electrode Angle
Drag
Spatter
Arc Length
Too Short
Normal
Too Long
Slow
Normal
Fast
Travel Speed
S-0061
9-8.
Electrode Movement During Welding
. Normally,
2
1
1
2
3
3
a single stringer
bead is satisfactory for most
narrow groove weld joints;
however, for wide groove weld
joints or bridging across gaps,
a weave bead or multiple
stringer beads work better.
Stringer Bead − Steady
Movement Along Seam
Weave Bead − Side to Side
Movement Along Seam
Weave Patterns
Use weave patterns to cover a
wide area in one pass of the electrode. Do not let weave width exceed 2-1/2 times diameter of
electrode.
S-0054-A
OM-264 152 Page 47
9-9.
Groove (Butt) Joints
1
Tack Welds
Prevent edges of joint from drawing together ahead of electrode by
tack welding the materials in position before final weld.
1
2
2
Square Groove Weld
Good for materials up to 3/16 in. (5
mm) thick.
3
1/16 in.
(1.6 mm)
Single V-Groove Weld
Good for materials 3/16 − 3/4 in.
(5-19 mm) thick. Cut bevel with
oxyacetylene or plasma cutting
equipment. Remove scale from
material after cutting. A grinder can
also be used to prepare bevels.
30
Create 30 degree angle of bevel on
materials in V-groove welding.
4
4
3
Double V-Groove Weld
Good for materials thicker than
3/16 in. (5 mm).
S-0062
9-10. Lap Joint
1
2
Electrode
Single-Layer Fillet Weld
Move electrode in circular motion.
3
30
Or Less
30
Or Less
1
1
Multi-Layer Fillet Weld
Weld a second layer when a heavier fillet is needed. Remove slag before making another weld pass.
Weld both sides of joint for maximum strength.
3
2
S-0063 / S-0064
9-11. Tee Joint
1
2
Electrode
Fillet Weld
Keep arc short and move at definite rate of speed. Hold electrode
as shown to provide fusion into the
corner. Square edge of the weld
surface.
For maximum strength weld both
sides of upright section.
1
2
45
Or
Less
1
2
3
3
Multi-Layer Deposits
Weld a second layer when a heavier fillet is needed. Use any of the
weaving patterns shown in Section
9-8. Remove slag before making
another weld pass.
S-0060 / S-0058-A / S-0061
OM-264 152 Page 48
9-12. Weld Test
1
2
3
Vise
Weld Joint
Hammer
Strike weld joint in direction shown.
A good weld bends over but does
not break.
3
3
2 To 3 in.
(51-76 mm)
1/4 in.
(6.4 mm)
2
1
2 To 3 in.
(51-76 mm)
2
1
S-0057-B
9-13. Troubleshooting
Porosity − small cavities or holes resulting from gas pockets in weld metal.
Possible Causes
Corrective Actions
Arc length too long.
Reduce arc length.
Damp electrode.
Use dry electrode.
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, coatings, slag, and dirt from work surface before
welding.
Excessive Spatter − scattering of molten metal particles that cool to solid form near weld bead.
Possible Causes
Corrective Actions
Amperage too high for electrode.
Decrease amperage or select larger electrode.
Arc length too long or voltage too high.
Reduce arc length or voltage.
Incomplete Fusion − failure of weld metal to fuse completely with base metal or a preceeding
weld bead.
Possible Causes
Corrective Actions
Insufficient heat input.
Increase amperage. Select larger electrode and increase amperage.
Improper welding technique.
Place stringer bead in proper location(s) at joint during welding.
Adjust work angle or widen groove to access bottom during welding.
Momentarily hold arc on groove side walls when using weaving technique.
Keep arc on leading edge of weld puddle.
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, coatings, slag, and dirt from work surface before
welding.
OM-264 152 Page 49
Lack Of Penetration − shallow fusion between weld metal and base metal.
Lack of Penetration
Good Penetration
Possible Causes
Corrective Actions
Improper joint preparation.
Material too thick. Joint preparation and design must provide access to bottom of groove.
Improper weld technique.
Keep arc on leading edge of weld puddle.
Insufficient heat input.
Increase amperage. Select larger electrode and increase amperage.
Reduce travel speed.
Excessive Penetration − weld metal melting through base metal and hanging underneath weld.
Excessive Penetration Good Penetration
Possible Causes
Corrective Actions
Excessive heat input.
Select lower amperage. Use smaller electrode.
Increase and/or maintain steady travel speed.
Burn-Through − weld metal melting completely through base metal resulting in holes where no
metal remains.
Possible Causes
Corrective Actions
Excessive heat input.
Select lower amperage. Use smaller electrode.
Increase and/or maintain steady travel speed.
Waviness Of Bead − weld metal that is not parallel and does not cover joint formed by base metal.
Possible Causes
Corrective Actions
Unsteady hand.
Use two hands. Practice technique.
Distortion − contraction of weld metal during welding that forces base metal to move.
Base metal moves
in the direction of
the weld bead.
Possible Causes
Corrective Actions
Excessive heat input.
Use restraint (clamp) to hold base metal in position.
Make tack welds along joint before starting welding operation.
Select lower amperage for electrode.
Increase travel speed.
Weld in small segments and allow cooling between welds.
OM-264 152 Page 50
SECTION 10 − SELECTING AND PREPARING A
TUNGSTEN FOR DC OR AC WELDING
WITH INVERTER MACHINES
gtaw_Inverter_2011-06
Whenever possible and practical, use DC weld output instead of AC weld output.
10-1. Selecting Tungsten Electrode (Wear Clean Gloves To Prevent Contamination Of Tungsten )
. Not all tungsten electrode manufacturers use the same colors to identify tungsten type. Contact the tungsten electrode manufacturer or reference
the product packaging to identify the tungsten you are using.
Amperage Range - Gas Type - Polarity
Electrode Diameter
(DCEN) − Argon
AC − Argon
Direct Current Electrode Negative
Balance Control @ 65% Electrode Negative
(For Use With Aluminum)
(For Use With Mild Or Stainless Steel)
2% Ceria, 1.5% Lanthanum, Or 2% Thorium Alloy Tungstens
.010 in. (1 mm)
Up to 25
Up to 20
.020 in. (1 mm)
15-40
15-35
.040 in. (1 mm)
25-85
20-80
1/16 in. (1.6 mm)
50-160
50-150
3/32 in. (2.4 mm)
130-250
135-235
1/8 in. (3.2 mm)
250-400
225-360
5/32 in. (4.0 mm)
400-500
300-450
3/16 in (4.8 mm)
500-750
400-500
1/4 in. (6.4 mm)
750-1000
600-800
Typical argon shielding gas flow rates are 11 to 35 CFH (cubic feet per hour).
Figures listed are a guide and are a composite of recommendations from American Welding Society (AWS) and electrode manufacturers.
10-2. Preparing Tungsten Electrode For DC Electrode Negative (DCEN) Welding
Or AC Welding With Inverter Machines
Grinding the tungsten electrode produces dust and flying sparks which can cause injury and start fires.
Use local exhaust (forced ventilation) at the grinder or wear an approved respirator. Read MSDS for safety
information. Consider using tungsten containing ceria, lanthana, or yttria instead of thoria. Grinding dust
from thoriated electrodes contains low-level radioactive material. Properly dispose of grinder dust in an
environmentally safe way. Wear proper face, hand, and body protection. Keep flammables away.
Radial Grinding
Causes Wandering Arc
2-1/2 Times
Electrode Diameter
1
3
2
1
Grinding Wheel
Grind end of tungsten on fine grit, hard
abrasive wheel before welding. Do not use
wheel for other jobs or tungsten can become
contaminated causing lower weld quality.
2
Tungsten Electrode
A 2% ceriated tungsten is recommended.
Wrong Tungsten
Preparation
4
Ideal Tungsten Preparation − Stable Arc
3
Flat
Diameter of this flat determines amperage
capacity.
4
Straight Ground
Grind lengthwise, not radial.
OM-264 152 Page 51
SECTION 11 − GUIDELINES FOR TIG WELDING (GTAW)
11-1. Positioning The Torch
!
Grinding the tungsten electrode
produces dust and flying sparks
which can cause injury and start
fires. Use local exhaust (forced
ventilation) at the grinder or wear
an approved respirator. Read
MSDS for safety information.
Consider using cerium or lanthanum based tungsten instead of
thoriated. Thorium dust contains
low-level radioactive material.
Properly dispose of grinder dust
in an environmentally safe way.
Wear proper face, hand, and
body protection. Keep flammables away.
1
Workpiece
3
2
4
90
Make sure workpiece is clean before
welding.
1
2
Work Clamp
Place as close to the weld as possible.
3
4
5
6
10−15
4
5
6
10−25
5
6
Torch
Filler Rod (If Applicable)
Gas Cup
Tungsten Electrode
Select and prepare tungsten according
to Section 10.
Guidelines:
The inside diameter of the gas cup
should be at least three times the
tungsten diameter to provide adequate
shielding gas coverage. (For example,
if tungsten is 1/16 in. diameter, gas cup
should be a minimum of 3/16 in.
diameter.
Tungsten extension is the distance the
tungsten extends out gas cup of torch.
1/16 in.
3/16 in.
Bottom View Of Gas Cup
The tungsten extension should be no
greater than the inside diameter of the
gas cup.
Arc length is the distance from the
tungsten to the workpiece.
Ref. ST-161 892
OM-264 152 Page 52
11-2. Torch Movement During Welding
Tungsten Without Filler Rod
75
Welding direction
Form pool
Tilt torch
Move torch to front
of pool. Repeat process.
Tungsten With Filler Rod
75
Welding direction
Form pool
15
Tilt torch
Remove rod
Add filler metal
Move torch to front
of pool. Repeat process.
ST-162 002-B
11-3. Positioning Torch Tungsten For Various Weld Joints
“T” Joint
Butt Weld And Stringer Bead
20
90
70
75
20
10
15
Corner Joint
Lap Joint
20-40
90
75
75
15
15
30
ST-162 003 / S-0792
OM-264 152 Page 53
SECTION 12 − PARTS LIST
. Hardware is common and
not available unless listed.
956172107_10-B
Figure 12-1. Main Assembly
OM-264 152 Page 54
Item
No.
Dia.
Mkgs.
Part
No.
Description
Quantity
Figure 12-1. Main Assembly
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
. . . . . . . . . . . . . . 207233
. . . . . . . . . . 156034005
. . . . . . . . . . 156034007
. . . . . . . . . +156007045
. . . . . . . . . +156015030
. . . . . . . . . . 056020078
. . . . . . . . . . 156032137
. . . . . . . . . . 156009146
. . . . . . . . . . 656009005
. . . . . . . . . . 656102008
. . . . . . . . . . 556009032
. . . . . . . . . . 156012153
. . . . . . . . . . . . . . 155436
. . . . . . . . . . . . . . 176106
. . . . . . . . . +156122095
. . . . . . . . . . 056020080
. . . . . . . . . . 956172104
. . . . . . . . . . 057094073
. . . . . . . . . . 056020079
. . . . . . . . . . 116039031
. . . . . . . . . . . . . . 178937
. . . . . . . . . . 056126085
. . . . . . . . . . 057021028
. . . . . . . . . . 556090048
. . . . . . . . . . 057052052
. . . . . . . . . . 956172009
. . . . . . . . . . 156118081
. . . . . . . . . . . . . . 193919
. . . . . . . . . . . . . . 193920
. . . . . . . . . . 356029258
. . . PC3 . . 057084186
. . . PC4 . . 057084187
. . . PC2 . . 028069153
. . . PC1 . . 057084188
. . . GSV . 056061071
. . . . . . . . . . 156005146
. . . . . . . . . +156118086
. . . . . . . . . . 356029246
. . . . . . . . . . 656089046
. . . . . . . . . . 256071014
. . . . . . . . . . . . . . 220805
. . . . S1 . . . . . . 124511
. . . . . . . . . . 156008044
. . . FM1 . . 057035022
. . . . . . . . . . 956172110
. . . . . . . . . . 156006080
. . . . . . . . . . 656110015
. . . . . . . . . . 156118093
. . . . . . . . . . 356029263
. . . . . . . . . . 056076270
. . . . . . . . . . . . . . 208015
. . . . . . . . . +156122092
. . . . . . . . . . . . . . 207291
. . . . . . . . . . 056092098
. . . . F1 . . 056092101
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Label, General Precautionary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slide Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hinge, Plastic, 40x40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panel, LH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Threaded Ring, Spool Holder, 5kg Spool . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handwheel Reel, w/Ring M8x20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spring 17x2, 6x4sp.L=19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clamp, Holder 17x41 − 4mm Thick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disk Clutch, 20x42 For Holder 5kg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spool Holder C/W Ring 5kg Spool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brass Washer, 8,5x51,5− 0,7mm Thick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spool Holder Shaft D.50 5kg D.16 L=58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Label, Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Label, Moving Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Plate, Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knob, BBT/Slope Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Label, Warning Changing Polarity BBT/Slope Control . . . . . . . . . . . . . . . . . .
Kit, Gas/No Gas Change Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lobes D.30 Handwheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Box Protection, PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Label, Warning Electric Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor C/W Pinion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wire Drive System, C/W 0.8−1.0 Rolls, 2 Rolls . . . . . . . . . . . . . . . . . . . . . . . .
Wire Guide, 2 X 5, L.71, Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connector, Mini−Euro, Quick Female, L.17 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nameplate, MPi 180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bezel, Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knob, Pointer 1.250 Dia X .250 Ld . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knob, Pointer .840 Dia X .250 Ld . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nameplate, MPi 180 Upper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Card, Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Card, BBT/Slope Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Card, Power Interconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Card, Inverter Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve, Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corner Seal, Plastic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panel, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nameplate, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Strain Relief, M 25x1.5, Primary Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Primary Cable, 3 Core 2,5 Mq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nut, Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch, 40A 600VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spacer, Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan, 120x120 24VDC C/W Wire Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rating Plate, MPi 180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foot, Rubber Mount, D.45 H=25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panel, Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nameplate, MPi 180 Lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dinse, Socket, Female, 25MMQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Panel RH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Label, Primary Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse, 5x20 T, 1A 250VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
4
1
1
1
4
1
1
2
1
1
1
1
1
+ When ordering a component originally displaying a precautionary label, the label should also be ordered.
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
OM-264 152 Page 55
See Table 12-1 Drive Roll And Wire Guide Kits
. Hardware is common and
not available unless listed.
956172107_11-A
Figure 12-2. Wire Drive Assembly
OM-264 152 Page 56
Item
No.
Dia.
Mkgs.
Part
No.
Description
Quantity
Figure 12-2. Wire Drive Assembly
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
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
35
36
37
38
39
40
41
.... M ...
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
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..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
056126085
556009033
156018121
656161010
156033035
656003014
156012141
156017161
156012142
156003042
156012140
156003041
156003040
156019825
356052008
156012155
156032132
156012145
056002016
156019777
156009136
156013050
156033036
156003036
156053112
156019805
756009061
156023165
156013051
156003037
156053051
656021268
656002022
156090022
156019779
156012143
656064003
156032133
156032134
056020075
656033009
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.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Motor, Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor, Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nut, Hex M5, Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cover, Rear, Gear Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bushing, D.10x14, Brass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Shaft, Central Gear/Drive Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Snap Ring, TR.PL−Al Es.12 L=52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bearing, D. 10x26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin, D.4x25 Sm.0,3x45ø C40 RETT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear, Reducer, D32z30−D17z12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin, D.4x35 Sm.0,3x45ø C40 RETT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear, Reducer, D24z30−D14z12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear, Reducer, D23z38−D12z14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screw, M3x14, Zinc Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Housing, Adapter Gun/Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bushing, Upper Pressure Arm Pivot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spring, D. 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin, Drive Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Upper Pressure Arm Housing, PVC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screw, M4x8, Pan Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer, D. 10,5x4, Brass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key, Upper Drive Roll Assembly, 3x3 L=15 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bushing, Upper Drive Roll Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear, Upper Drive Roll Assembly, D.17x32.5 . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Roll, Upper Pressure Arm Housing, D. 17x30 . . . . . . . . . . . . . . . . . . . .
Bolt, M5x25, Through Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer, Insulator Drive Assembly Through Bolt . . . . . . . . . . . . . . . . . . . . . . .
C Clip, Gear/Shaft, D.10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key, Lower Drive Roll Assembly, D. 3x3 L=20 . . . . . . . . . . . . . . . . . . . . . . . . .
Gear, Lower Drive Roll Assembly, D.10x32,5, Drive Roll . . . . . . . . . . . . . . . .
Wire Drive Roll, D.30, See Fig. 4-7 Refer To Table 12-1 . . . . . . . . . . . . . . . .
O−Ring, D. 7,2x1,78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thumb Screw, Drive Roll Locator, D. M4x8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wire Inlet Guide, See Fig. 4-7 Refer To Table 12-1 . . . . . . . . . . . . . . . . . . . .
Screw, M4x4, Wire Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin, D.3x13 L. 5mm, Knurled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tension Arm, Pinned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sleeve, D. 7x7, Spring Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spring, 10x1.3 L.30, Wire Tensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knob, Adjustment Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nut, Locating, Tension Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
1
4
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
1
2
2
1
1
1
1
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
OM-264 152 Page 57
Table 12-1. Drive Roll And Wire Guide Kits
. Base selection of drive rolls upon the following recommended usages:
1.
2.
3.
4.
V-Grooved rolls for hard wire.
U-Grooved rolls for soft and soft shelled cored wires.
V-Knurled rolls for hard shelled cored wires.
Drive roll types may be mixed to suit particular requirements (example: V-Knurled roll in combination with U-Grooved).
Wire Diameter
Drive Roll
Wire Guide
Metric
Fraction
Decimal
Part No.
Type
0.6/0.8 mm*
0.023/0.030 in.
0.023/0.030 in.
156053051
V
0.8/1.0 mm*
0.030/0.035 in.
0.030/0.035 in.
156053109
V
0.8/1.0 mm*
0.030/0.035 in.
0.030/0.035 in.
156053121
U
0.8/1.0 mm**
0.030/0.045 in.
0.030/0.035 in.
156053053
U
1.0/1.2 mm*
0.035/0.045 in.
0.035/0.045 in.
156053110
V-K
Inlet
156090022
*Available in steel 30 mm diameter
**Available in nylon 30 mm diameter
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.
OM-264 152 Page 58
Notes
Notes
Effective January 1, 2013
(Equipment with a serial number preface of MD or newer)
This limited warranty supersedes all previous Miller warranties and is exclusive with no other
guarantees or warranties expressed or implied.
LIMITED WARRANTY − Subject to the terms and conditions
below, ITW Welding Products Italy warrants to its original retail
purchaser that new Miller equipment sold after the effective date
of this limited warranty is free of defects in material and
workmanship at the time it is shipped by Miller. THIS
WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.
Within the warranty periods listed below, Miller will repair or
replace any warranted parts or components that fail due to such
defects in material or workmanship. Miller must be notified in
writing within thirty (30) days of such defect or failure, at which
time Miller will provide instructions on the warranty claim
procedures to be followed.
Miller shall honor warranty claims on warranted equipment listed
below in the event of such a failure within the warranty time
periods. All warranty time periods start on the date the
equipment was delivered to the original retail purchaser or one
year after the equipment is shipped to a European distributor or
eighteen months after the equipment is shipped to an
International distributor.
1.
3 Years — Parts and Labor
*
*
*
*
*
*
3.
Auto-Darkening Helmet Lenses (No Labor)
Migmatic 175
HF Units
Water
Coolant
Systems
(EU
Models,
Non-Integrated)
1 Year — Parts and Labor Unless Specified
*
*
*
*
*
*
*
*
*
*
*
5.
Engine Driven Welding Generators
(NOTE: Engines are warranted separately by the
engine manufacturer.)
Inverter Power Sources (Unless Otherwise Stated)
Process Controllers
Semi-Automatic and Automatic Wire Feeders
Transformer/Rectifier Power Sources
Water Coolant System (Integrated)
2 Years — Parts
*
*
*
*
4.
Original main power rectifiers only to include SCRs,
diodes, and discrete rectifier modules with
exclusion of STR, Si, STi, STH and MPi series.
Automatic Motion Devices
Field Options
(NOTE: Field options are covered under True Blue
for the remaining warranty period of the product they
are installed in, or for a minimum of one year —
whichever is greater.)
Induction Heating Power Sources, Coolers, and
Electronic Controls/Recorders
Motor Driven Guns (w/exception of Spoolmate
Spoolguns)
Positioners and Controllers
Powered Air Purifying Respirator (PAPR) Blower
Unit (No Labor)
Racks
Running Gear and Trailers
Subarc Wire Drive Assemblies
Water
Coolant
Systems
(USA
Models,
Non-Integrated)
Work Stations/Weld Tables (No Labor)
6 Months — Parts
*
Batteries
90 Days — Parts
*
Accessory (Kits)
*
Canvas Covers
*
Induction Heating Coils and Blankets
*
MIG Guns
*
Remote Controls
*
Replacement Parts (No Labor)
*
Spoolmate Spoolguns
*
Cables and Non-Electronic Controls
Miller’s True Blue Limited Warranty shall not apply to:
1.
Consumable components; such as contact tips,
cutting nozzles, contactors, brushes, switches, slip
rings, relays or parts that fail due to normal wear.
2.
Items furnished by Miller, but manufactured by others, such
as engines or trade accessories. These items are covered
by the manufacturer’s warranty, if any.
3.
Equipment that has been modified by any party other than
Miller, or equipment that has been improperly installed,
improperly operated or misused based upon industry
standards, or equipment which has not had reasonable and
necessary maintenance, or equipment which has been
used for operation outside of the specifications for the
equipment.
5 Years Parts — 3 Years Labor
*
2.
6.
MILLER PRODUCTS ARE INTENDED FOR PURCHASE AND
USE BY COMMERCIAL/INDUSTRIAL USERS AND PERSONS
TRAINED AND EXPERIENCED IN THE USE AND
MAINTENANCE OF WELDING EQUIPMENT.
In the event of a warranty claim covered by this warranty, the
exclusive remedies shall be, at Miller’s option: (1) repair; or (2)
replacement; or, where authorized in writing by Miller in
appropriate cases, (3) the reasonable cost of repair or
replacement at an authorized Miller service station; or (4)
payment of or credit for the purchase price (less reasonable
depreciation based upon actual use) upon return of the goods at
customer’s risk and expense. Miller’s option of repair or
replacement will be F.O.B., Factory at ITW Welding Products
Group Europe or F.O.B. at a Miller authorized service facility as
determined by Miller. Therefore no compensation or
reimbursement for transportation costs of any kind will be
allowed.
TO THE EXTENT PERMITTED BY LAW, THE REMEDIES
PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE
REMEDIES. IN NO EVENT SHALL MILLER BE LIABLE FOR
DIRECT,
INDIRECT,
SPECIAL,
INCIDENTAL
OR
CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF
PROFIT), WHETHER BASED ON CONTRACT, TORT OR ANY
OTHER LEGAL THEORY.
ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND
ANY
IMPLIED
WARRANTY,
GUARANTY
OR
REPRESENTATION AS TO PERFORMANCE, AND ANY
REMEDY FOR BREACH OF CONTRACT TORT OR ANY
OTHER LEGAL THEORY WHICH, BUT FOR THIS
PROVISION, MIGHT ARISE BY IMPLICATION, OPERATION
OF LAW, CUSTOM OF TRADE OR COURSE OF DEALING,
INCLUDING
ANY
IMPLIED
WARRANTY
OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE, WITH RESPECT TO ANY AND ALL EQUIPMENT
FURNISHED BY MILLER IS EXCLUDED AND DISCLAIMED
BY MILLER.
milan_warr 2013−01
Owner’s Record
Please complete and retain with your personal records.
Model Name
Serial/Style Number
Purchase Date
(Date which equipment was delivered to original customer.)
Distributor
Address
Country
Zip/Postal Code
For Service
Contact a DISTRIBUTOR or SERVICE AGENCY near you.
Always provide Model Name and Serial/Style Number.
Contact your Distributor for:
Welding Supplies and Consumables
Options and Accessories
Service and Repair
Replacement Parts
Owner’s Manuals
ITW Welding Italy S.r.l.
Contact the Delivering Carrier to:
File a claim for loss or damage during
shipment.
For assistance in filing or settling claims, contact
your distributor and/or equipment manufacturer’s
Transportation Department.
ORIGINAL INSTRUCTIONS − PRINTED IN USA
 2013 Miller Electric Mfg. Co. 2013−01
Via Privata Iseo, 6/E
20098 San Giuliano
Milanese, Italy
Phone: 39 (0) 2982901
Fax: 39 (0) 298290-203
email: miller@itw−welding.it