Chicago Electric MIG 200 93804 User manual

WELDER DUAL

MIG 200

Model 93804

ASSEMBLY AND OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit ourWeb site at: http://www.harborfreight.com

manual or any artwork contained herein may be reproduced in any shape or form

without the express written consent of Harbor Freight Tools.

For technical questions, please call 1-800-444-3353.

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

Due to continuing improvements, actual product may differ slightly from the product described herein.

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 2SKU 93804

Contents

PRODUCT SPECIFICATIONS................................................... 3

GENERAL SAFETY RULES ..................................................... 3

Specific Safety Rules ........................................................................6

Grounding...........................................................................................9

Extension Cords ...............................................................................10

Symbology ........................................................................................10

UNPACKING............................................................................. 10

ASSEMBLY INSTRUCTIONS ................................................... 11

To Attach The Wheels .......................................................................11

To Install The Wire Spool ..................................................................11

To Route The Wire .............................................................................12

To Change Wire Settings .................................................................15

Setting The Gun Polarity For Wire Type .........................................16

To Attach The Ground Cable With Clamp ......................................16

To Install A Gas Cylinder .................................................................17

OPERATING INSTRUCTIONS ................................................. 18

Before You Begin Welding ............................................................... 18

Duty Cycle (Duration of Use)...........................................................18

Setting Up The Weld..........................................................................19

Holding The Welding Torch ..............................................................20

Weld Settings Chart .......................................................................... 21

Volt-Ampere Curves .........................................................................22

Weld Diagnosis .................................................................................23

When the Weld is Completed ..........................................................25

INSPECTION, MAINTENANCE, AND CLEANING ................... 26

Nozzle Inspection, Cleaning, and Replacement ...........................26

Contact Tip Inspection, Cleaning, And Replacement ..................26

Replacing The Welding Torch Liner ................................................27

PARTS LISTS & ASSEMBLY DIAGRAMS ............................... 28

Electrical Schematic.........................................................................33

TROUBLESHOOTING .............................................................. 34

WARRANTY ............................................................................. 36

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 3SKU 93804

PRODUCT SPECIFICATIONS

SAVETHIS MANUAL

You will need this manual for the safety warnings and precautions, assembly, operating,

inspection, maintenance and cleaning procedures, parts list and assembly diagram.

Keep your invoice with this manual. Write the invoice number on the inside of the front

cover. Keep this manual and invoice in a safe and dry place for future reference.

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GENERAL SAFETY RULES

WARNING!

READ AND UNDERSTAND ALL INSTRUCTIONS

Failure to follow all instructions listed below may result in

electric shock, fire, and/or serious injury.

SAVE THESE INSTRUCTIONS

WORK AREA

1. Keep your work area clean and well lit. Cluttered benches and dark areas invite

accidents.

2. Do not operate power tools in explosive atmospheres, such as in the presence

of flammable liquids, gases, or dust. Power tools create sparks which may ignite

the dust or fumes.

3. Keep bystanders, children, and visitors away while operating a power tool.

Distractions can cause you to lose control. Protect others in the work area from

debris such as chips and sparks. Provide barriers or shields as needed.

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 4SKU 93804

ELECTRICAL SAFETY

4. Grounded tools must be plugged into an outlet properly installed and grounded

in accordance with all codes and ordinances. Never remove the grounding

prong or modify the plug in any way. Do not use any adapter plugs. Check

with a qualified electrician if you are in doubt as to whether the outlet is properly

grounded. If the tools should electrically malfunction or break down, grounding

provides a low resistance path to carry electricity away from the user.

5. Avoid body contact with grounded surfaces such as pipes, radiators, ranges,

and refrigerators. There is an increased risk of electric shock if your body is

grounded.

6. Do not expose power tools to rain or wet conditions. Water entering a power

tool will increase the risk of electric shock.

7. Do not abuse the Power Cord. Never use the Power Cord to carry the tools or

pull the Plug from an outlet. Keep the Power Cord away from heat, oil, sharp

edges,or moving parts. Replace damaged Power Cords immediately. Damaged

Power Cords increase the risk of electric shock.

8. When operating a power tool outside, use an outdoor extension cord marked

“W-A” or“W”. These extension cords are rated for outdoor use, and reduce the risk

of electric shock.

PERSONAL SAFETY

9. Stay alert. Watch what you are doing, and use common sense when operating

a power tool. Do not use a power tool while tired or under the influence of

drugs, alcohol, or medication. A moment of inattention while operating power

tools may result in serious personal injury.

10. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep

your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry,

or long hair can be caught in moving parts.

11. Avoid accidental starting. Be sure the Power Switch is off before plugging in.

Carrying power tools with your finger on the Power Switch, or plugging in power

tools with the Power Switch on, invites accidents.

12. Remove adjusting keys or wrenches before turning the power tool on. A wrench

or a key that is left attached to a rotating part of the power tool may result in personal

injury.

13. Do not overreach. Keep proper footing and balance at all times. Proper footing

and balance enables better control of the power tool in unexpected situations.

14. Always wear eye, hearing, and breathing protection. For welding safety

equipment, refer to number 9on page 6.

TOOL USE AND CARE

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 5SKU 93804

15. Use clamps (not included) or other practical ways to secure and support the

workpiece to a stable platform. Holding the work by hand or against your body is

unstable and may lead to loss of control.

16. Do not force the tool. Use the correct tool for your application. The correct tool

will do the job better and safer at the rate for which it is designed.

17. Do not use the power tool if the Power Switch does not turn it on or off. Any

tool that cannot be controlled with the Power Switch is dangerous and must be

replaced.

18. Disconnect the Power Cord Plug from the power source before making any

adjustments, changing accessories, or storing the tool. Such preventive safety

measures reduce the risk of starting the tool accidentally.

19. Store idle tools out of reach of children and other untrained persons. Tools are

dangerous in the hands of untrained users.

20. Maintain tools with care. Keep cutting tools sharp and clean. Properly

maintained tools with a sharp cutting edge are less likely to bind and are easier to

control. Do not use a damaged tool. Tag damaged tools “Do not use” until repaired.

21. Check for misalignment or binding of moving parts, breakage of parts, and

any other condition that may affect the tool’s operation. If damaged, have the

tool serviced before using. Many accidents are caused by poorly maintained

tools.

22. Use only accessories that are recommended by the manufacturer for your

model. Accessories that may be suitable for one tool may become hazardous when

used on another tool.

SERVICE

23. Tool service must be performed only by qualified repair personnel. Service or

maintenance performed by unqualified personnel could result in a risk of injury.

24. When servicing a tool, use only identical replacement parts. Follow instructions

in the

“Inspection, Maintenance, And Cleaning”

section of this manual. Use of

unauthorized parts or failure to follow maintenance instructions may create a risk of

electric shock or injury.

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 6SKU 93804

SPECIFIC SAFETY RULES

1. Ground this product. This Welder requires the attachment and use of a UL®-

listed, 220 volt, grounded, 3-prong, electrical Power Cord Plug (not included). Only

a qualified electrician should install the Power Cord Plug. Never remove the

grounding prong or modify the Power Cord Plug in any way. Do not use adapter

plugs with this product. To comply with the National Electric Code, and to provide

additional protection from the risk of electrical shock, this product should only be

connected to a 220 volt, 3-hole outlet that is properly grounded.

2. Maintain labels and nameplates on the Welder. These carry important information.

If unreadable or missing, contact Harbor Freight Tools for a replacement.

3. Avoid unintentional starting. Make sure you are prepared to begin work before

turning on the Welder.

4. Do not force the Welder. This tool will do the work better and safer at the speed

and capacity for which it was designed.

5. Never leave theWelder unattended when it is plugged into an electrical outlet.

Turn off the tool, and unplug it from its electrical outlet before leaving.

6. Industrial applications must follow OSHA guidelines.

7. Never stand on the Welder. Serious injury could result if the Welder is tipped or if

hot surfaces are accidently contacted.

8. Maintain a safe working environment. Keep the work area well lit. Make sure

there is adequate surrounding workspace. Always keep the work area free of

obstructions, grease, oil, trash, and other debris. Do not use a power tool in areas

near flammable chemicals, dusts, and vapors. Do not use this product in a damp or

wet location.

9. Prevent eye injury and burns. Wearing and using ANSI-approved personal

safety clothing and safety devices reduce the risk for injury.

• Wear ANSI-approved safety impact eye goggles with a welding helmet

with protective lens.

• Leather leggings, fire resistant shoes or boots should be worn when using this

product. Do not wear pants with cuffs, shirts with open pockets, or any clothing

that can catch and hold molten metal or sparks.

• Keep clothing free of grease, oil, solvents, or any flammable substances. Wear

dry, insulating gloves and protective clothing.

• Wear an approved head covering to protect the head and neck. Use aprons,

cape, sleeves, shoulder covers, and bibs designed and approved for welding

and cutting procedures.

• When welding/cutting overhead or in confined spaces, wear flame resistant ear

plugs or ear muffs to keep sparks out of ears.

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 7SKU 93804

10. Prevent accidental fires. Remove any combustible material from the work

area.

•When possible, move the work to a location well away from combustible

materials. If relocation is not possible, protect the combustibles with a

cover made of fire resistant material.

• Remove or make safe all combustible materials for a radius of 35 feet (10 meters)

around the work area. Use a fire resistant material to cover or block all open

doorways, windows, cracks, and other openings.

• Enclose the work area with portable fire resistant screens. Protect combustible

walls, ceilings, floors, etc., from sparks and heat with fire resistant covers.

• If working on a metal wall, ceiling, etc., prevent ignition of combustibles on the

other side by moving the combustibles to a safe location. If relocation of

combustibles is not possible, designate someone to serve as a fire watch,

equipped with a fire extinguisher, during the cutting process and for at least one

half hour after the cutting is completed.

• Do not weld or cut on materials having a combustible coating or combustible

internal structure, as in walls or ceilings, without an approved method for

eliminating the hazard.

• Do not dispose of hot slag in containers holding combustible materials. Keep a

fire extinguisher nearby and know how to use it.

• After spot welding, make a thorough examination for evidence of fire. Be aware

that easily-visible smoke or flame may not be present for some time after the fire

has started. Do not weld or cut in atmospheres containing dangerously reactive

or flammable gases, vapors, liquids, and dust. Provide adequate ventilation in

work areas to prevent accumulation of flammable gases, vapors, and dust. Do

not apply heat to a container that has held an unknown substance or a

combustible material whose contents, when heated, can produce flammable or

explosive vapors. Clean and purge containers before applying heat. Vent closed

containers, including castings, before preheating, welding, or cutting.

11. Avoid overexposure to fumes and gases. Always keep your head out of the

fumes. Do not breathe the fumes. Use enough ventilation or exhaust, or both, to

keep fumes and gases from your breathing zone and general area.

• Where ventilation is questionable, have a qualified technician take an air

sampling to determine the need for corrective measures. Use mechanical

ventilation to improve air quality. If engineering controls are not feasible, use an

approved respirator.

• Work in a confined area only if it is well ventilated, or while wearing an air-

supplied respirator.

• Follow OSHA guidelines for Permissible Exposure Limits (PEL’s) for various

fumes and gases.

• Follow the American Conference of Governmental Industrial Hygienists

recommendations for Threshold Limit Values (TLV’s) for fumes and gases.

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 8SKU 93804

• Have a recognized specialist in Industrial Hygiene or Environmental Services

check the operation and air quality and make recommendations for the specific

welding or cutting situation.

12. Read and understand all instructions and safety precautions as outlined in

the manufacturer’s manual for the material you will weld or cut.

13. Do not touch live electrical parts.Wear dry, insulating gloves. Do not touch

electrode or conductor tong with bare hand. Do not wear wet or damaged gloves.

14. Protect yourself from electric shock. Do not use outdoors. Insulate yourself from

the workpiece and ground. Use nonflammable, dry insulating material if possible, or

use dry rubber mats, dry wood or plywood, or other dry insulating material big enough

to cover your full area of contact with the work or ground.

15. Ensure that the unit is placed on a stable location before use. If this unit falls

while plugged in, severe injury, electric shock, or fire may result.

16. Cylinders can explode when damaged:

• Never weld on a pressurized or a closed cylinder.

• Never lay a welding torch on a cylinder.

• Never allow a welding electrode to touch the cylinder.

• Keep cylinders away from any electrical circuits, including welding circuits.

• Keep protective cap in place over the valve except when the cylinder is in use.

• Use only correct gas shielding equipment designed specifically for the type of

welding you will do. Maintain this equipment properly.

• Always protect gas cylinders from heat, being struck, physical damage, slag,

flames, sparks, and arcs.

• Always use proper procedures to move cylinders.

Inhalation Hazard

Welding Produces TOXIC FUMES and GASSES.

Exposure to welding gasses can increase the risk of developing

certain cancers, such as cancer of the larynx and lung cancer.

Also, some diseases that may be linked to exposure to welding gasses

or fumes are:

•Early onset of Parkinson’s Disease •Heart Disease

•Damage to the reproductive organs •Ulcers

•Inflammation of the small intestine or stomach •Kidney damage

•Respiratory diseases such as emphysema, bronchitis or pneumonia

Safety precautions, such as using natural or forced air ventilation

and wearing a NIOSH-approved respirator, are ESSENTIAL to reduce

the risk of developing the above illnesses.

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 9SKU 93804

17. Use the right tool for the job. Do not attempt to force small equipment to do the

work of larger industrial equipment. There are certain applications for which this

Welder was designed. It will do the job better and more safely at the rate for which

it was intended. Do not modify thisWelder, and do not use this Welder for a purpose

for which it was not intended.

18. WARNING! People with pacemakers should consult their physician(s) before

using this product. Electromagnetic fields in close proximity to a heart pacemaker

could cause interference to or failure of the pacemaker.

19. WARNING! The warnings and cautions discussed in this manual cannot cover

all possible conditions and situations that may occur. It must be understood by the

operator that common sense and caution are factors which cannot be built into this

product, but must be supplied by the operator.

20. WARNING! This product, when used for welding and similar applications,

produces chemicals known to the State of California to cause cancer and birth

defects (or other reproductive harm).

(California Health & Safety Code § 25249.5,

et seq.

)

SAVE THESE INSTRUCTIONS

GROUNDING

NOTE:

This Welder requires the installation of a 3-Prong, 220 VAC, polarized,

twistlock Power Cord Plug (not included).

NEMA configuration # L6-50 or equivalent

The Plug must be installed by a certified electrician.

WARNING!

Improperly connecting the grounding wire can result in the risk of elec-

tric shock. Check with a qualified electrician if you are in doubt as to

whether the outlet is properly grounded. Do not modify the power cord

plug used with the tool. Never remove the grounding prong from the

plug. Do not use the tool if the power cord or plug is damaged. If dam-

aged, have it repaired by a service facility before use. If the plug will not

fit the outlet, have a proper outlet installed by a qualified electrician.

GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS

1. Tools marked with “Grounding Required” have a three wire cord and three prong

grounding plug. The plug must be connected to a properly grounded outlet. If the

tool should electrically malfunction or break down, grounding provides a low

resistance path to carry electricity away from the user, reducing the risk of electric

shock.

For technical questions, please call 1-800-444-3353;

Troubleshooting section at end of manual. Page 10SKU 93804

2. The grounding prong in the plug is connected through the green wire inside the

cord to the grounding system in the tool. The green wire in the cord must be the only

wire connected to the tool’s grounding system and must never be attached to an

electrically “live” terminal.

3. Your tool must be plugged into an appropriate outlet, properly installed

by a certified

electrician

and grounded in accordance with all codes and ordinances.

EXTENSION CORDS

AN EXTENSION CORD MUST NEVER BE USED WITH THIS ITEM. Use of an

extension cord could result in damage to the item or fire.

SYMBOLOGY

Double Insulated

Canadian Standards

Association

Underwriters Laboratories,

Inc.

V ~ Volts Alternating Current

AAmperes

noxxxx/min. No Load Revolutions per

Minute (RPM)

UNPACKING

When unpacking both boxes, check to make sure all the parts shown on the Parts Lists

on pages 28 through 32 are included. If any parts are missing or broken, please call

Harbor Freight Tools at the number shown on the cover of this manual as soon as pos-

sible.

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