Chicago Electric 91149 Manual de usuario

AC/DCTIG WELDER - 200 AMP

Model 91149

ASSEMBLY AND OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

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

withoutthe expresswrittenconsent ofHarbor FreightTools.

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

PRODUCT SPECIFICATIONS

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 welding equipment in explosive atmospheres, such as in

the presence of flammable liquids, gases, or dust. Welding equipment

SAVE THIS 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.

When unpacking, check to make sure all the parts shown on the Parts Lists on pages 23

and 26 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 possible.

UNPACKING

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 2

Item Description

Electrical Requirements Input Voltage: 220V / 60 Hz / 69 Input Amperage

Built-In Thermal Overload Protection

Required Power Cord (not included) Rating: 6 AWG, Maximum length 25’

Must be direct wired to a 220V, 70 Amp, dedicated circuit

Welding Modes (4) AC MMA / DC MMA / AC TIG / DC TIG.

Duty Cycles 40% @ 200 AMPs AC / 60% @ 165 AMPs AC / 100% @ 130 AMPs AC

40% @ 170 AMPs DC / 100% @ 110 AMPs DC

Material Capacity Suitable for all ferrous and non-ferrous metals

Welding Machine Coolant Type Forced Air Cooled

Gun Gas Hose Length 16’ 9-1/2”Long

Ground Clamp Cable Length 16’ 9-1/2”Long

Accessories Welding Gloves / Welding Mask

Chipping Hammer / Wire Brush

Weight 127.05 Pounds

creates sparks which may ignite the dust or fumes.

3. Keep bystanders, children, and visitors away while operating welding

equipment. Distractions can cause you to lose control. Protect others in the

work area from arc rays, sparks, and slag. Provide barriers or shields as

needed.

ELECTRICAL SAFETY

1. This Tig Welder requires the connection of a 220 volt electrical cord (not included)

wired directly from the Welder to a 220 volt, (70 Amp) dedicated electrical circuit.

For safety purposes, a qualified, certified, electrician must do this wiring

connection.

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

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

body is grounded.

3. Do not expose welding equipment to rain or wet conditions. Water entering

welding equipment will increase the risk of electric shock.

4. Do not abuse the Power Cord. 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.

PERSONAL SAFETY

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

operating welding equipment. Do not use welding equipment while tired or

under the influence of drugs, alcohol, or medication. A moment of inattention

while operating welding equipment may result in serious personal injury.

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 3

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

Keep your hair, clothing, and gloves away from hot or moving parts. Loose

clothes, jewelry, or long hair can be caught in hot or moving parts.

(See page 6, number 3, for recommended safety clothing.)

3. Remove adjusting keys or wrenches before turning on the welding

equipment. A wrench or a key that is left attached to an electrically charged part

of the welding equipment may result in personal injury.

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

footing and balance enables better control of the welding equipment in

unexpected situations.

TOOL USE AND CARE

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

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

body is unstable and may lead to loss of control.

2. Do not force the welding equipment. Use the correct equipment for your

application. The correct equipment will do the job better and safer at the rate for

which it is designed.

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

Any equipment that cannot be controlled with the Power Switch is dangerous and

must be replaced.

4. Store idle welding equipment out of reach of children and other untrained

persons. Welding equipment is dangerous in the hands of untrained users.

5. Maintain welding equipment with care. Keep equipmet clean and dry.

Properly maintained equipment is less likely to malfunction and is easier to

control. Do not use damaged welding equipment. Tag damaged equipment “Do

not use” until repaired.

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

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

have the equipment serviced before using. Many accidents are caused by

poorly maintained equipment.

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 4

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

model. Accessories that may be suitable for one type of welding equipment may

become hazardous when used on another type of equipment

SERVICE

1. Equipment service must be performed only by qualified repair personnel.

Service or maintenance performed by unqualified personnel could result in a risk

of injury.

2. When servicing welding equipment, 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, burns, or other injury.

ELECTRICAL CONNECTION

ThisTig Welder requires the connection of a 220 volt electrical cord

(not included) wired directly from the Welder to a 220 volt, (70 Amp) dedicated

electricalcircuit. For safety purposes, a qualified, certified, electrician must do

this wiring connection.

WARNING!

SYMBOLOGY

V ~

xxxx/min.

Double Insulated

CanadianStandards

Association

Underwriters

Laboratories, Inc.

Volts Alternating Current

Amperes

No Load Revolutions

per Minute (RPM)

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 5

Figure A

SPECIFIC SAFETY RULES

1. 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 the Welder in areas

near flammable chemicals, dusts, and vapors.

2. Maintain labels and nameplates on theWelder. These carry important

information. If unreadable or missing, contact Harbor FreightTools for a

replacement.

3. Prevent eye injury and burns. Wearing and using personal safety clothing and

safety devices reduce the risk of injury. Wear ANSI approved safety impact

eyeglasses with a welding helmut featuring at least a number 10 shade lens

rating. Leather leggings, rubber soled, fire resistant shoes or boots should be

worn when using this Welder. 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 other flammable substances. Wear

dry, insulating gloves and protective clothing. Wear an approved head covering to

protect head and neck. Use aprons, cape, sleeves and shoulder covers, and bibs

designed and approved for welding procedures. When welding overhead or in

confined spaces, wear flame resistant ear plugs or ear muffs to keep sparks out of

ears.

4. 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. Have a recognized specialist in Industrial Hygiene

or Environmental Services check the operation and air quality and make

recommendations for the specific welding situation.

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 6

5. Do not perform welding or cutting operations near chlorinated hydrocarbon

vapors produced by degreasing or painting. The heat generated by arc rays

can react to form phosgene, a highly toxic gas.

6. Irritation of the eyes, nose, and throat are symptoms of inadequate

ventilation. Take immediate steps to improve ventilation. Do not continue

operations if symptoms persist.

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 7

7. When welding or cutting in small areas, the operator should be externally

accompanied by another person (standing

near

the enclosed work area) to

observe accident prevention procedures.

8. When welding or cutting, be aware that high frequency radiation may be

produced which can interfere with radio navigation, safety devices,

computers, and communications equipment. Before operating, have a

qualified technician check out that possibility.

9. Keep high frequency source doors and panels tightly shut. Keep spark

gaps at the correct settings. Use proper grounding and shielding to minimize the

possibility of interference. Keep all cables close together and close to the

ground. Locate the welding or cutting operation as far as possible from sensitive

electronic equipment, or have the electronic equipment shut down temporarily.

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, floor, ceiling, etc., prevent ignition of

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

relocation of the combustibles is not possible, designate someone to serve as a

fire watch, equipped with a fire extinguisher, during the welding process and at

least one half hour after the welding is completed. Do not place the torch on any

material other than bare concrete until the torch is completely cooled. Do not

weld on materials having a combustible coating or combustible internal structure

such as 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 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 in

atmospheres containing dangerously reactive or flammable gasses, vapors,

liquids, and dust. Provide adequate ventilation in work areas to prevent

accumulation of flammable gases, vapors, or 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 or welding.

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

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

12. Industrial applications must follow OSHA requirements.

13. Connect the earth ground as near as possible to the operating area. Earth

connections to structural parts of the building or other places distant to the

operating area will reduce their effectiveness and increase the danger of electric

shock.

14. In addition to grounding the workpiece with theWelder Grounding Clamp,an

earth grounding of the workpiece is recommended. Ground it directly to an

earth pipe or grounding rod with a separate cable of appropriate size.

IMPORTANT: Only a qualified, certified electrician should perform this

procedure.

15. Do not touch the welding wire if you are in contact with the workpiece,

ground, or another welding wire from a different machine.

16. Do not allow the welding wire to touch earth ground. Accidental earth

discharges may cause overheating and fire hazards.

17. Do not pass equipment cables through or near lifting chains, crane cables,

or any electrical lines.

18. Never use theWelder near water. Ensure that the surrounding area and cutting

objects are dry. Do not spray water or other liquids on or near theWelder.

19. Avoid all direct contact between the skin and wet garments and metal parts

under electrical power. Check that gloves and protective clothing are dry.

20. Never leave theWelder unattended when it is turned ON.

21. Always turn off theWelder in the event of a power failure.

22. Significant DC electrical voltage exists after turning off theWelder.

Discharge the electrode to ground before handling.

23. Performance of thisWelder may vary depending on variations in local line

voltage.

24. Always turn OFF theWelder before performing any inspection, maintenance,

or cleaning procedures.

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 8

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 9

25. Use the right tool or attachment for the right job. Do not attempt to force a

small tool or attachment to do the work of a larger industrial tool or attachment.

There are certain applications for which this product was designed. It will do the

job better and more safely at the rate for which it was intended. Do not modify

this product, and do not use this product for a purpose for which it was not

intended.

26. Proper cylinder care: Secure gas cylinders to the Base of theWelder, a wall, or

post to prevent them from falling. All cylinders should be used and stored in an

upright position. Never drop or strike a cylinder. Do not use cylinders that have

been dented. Cylinder caps should be used when moving or storing cylinders.

Empty cylinders should be kept in specified areas and clearly marked “empty”.

Never use oil or grease on any inlet connector, outlet connector, or cylinder

valve. Additional specific instructions for the safe handling of cylinders should be

supplied by your cylinder supplier and covered under local, state, and federal

regulations governing pressurized gases.

27. WARNING! The brass components of this product contain lead, a chemical

known to the State of Califormia to cause birth defects (or other reproductive

harm).

(California Health & Safety code 25249.5, et seq.)

28. WARNING! This product, when used for welding, cutting, and similar

applications, produces chemicals known to the State of Califormia to cause

cancer and birth defects (or other reproductive harm).

(California Health & Safety code 25249.5, et seq.)

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

before using this product. Operation of electrical equipment in close proximity to

a heart pacemaker could cause interference or failure of the pacemaker.

30. WARNING! The warnings, precautions, and instructions discussed in this

instruction 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.

SKU 91149 For technical questions, please call 1-800-444-3353. PAGE 10

PRODUCT OVERVIEW

1. This 200 AMP,AC/DCTIGWelder is designed for theTIG and stick welding process, both

in the AC and DC application.

2. Suitable for all ferrous and non-ferrous materials,including stainless steel, copper,

aluminum and its alloys.

3. Designed with HF (HIgh Frequency) starting which provides non-contact arc starting.

4. Designed with reversible polarity for convenient DCEN or DCEP performance.

5. Current may be adjusted steplessly by magnetic shunt.

6. Pre-gas time is pre-set inside the machine. Post-gas time may be adjusted from 0-30

seconds.

7. Other design features include; forced air cooling system by fan and overload protection.

Part # Description Part # Description

1 Front Panel 6 MMA/TIG Selector

3 Post-Gas Potentiometer 10 Power Switch

4 Hand Wheel 12 AC/DC Main Selector

Figure B

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