Forney 220 ST Operating Manual Download Page 8

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•  Keep cylinders away from areas where they may be subjected to physical damage or accidentally struck. Keep them 

a safe distance from any source of flame, sparks, or heat.

•  Do not weld or cut in an area where the air may contain flammable dust (such as grain dust), gas, or liquid vapors 

(such as gasoline).

•  Do not handle hot metal, such as the workpiece or electrode stubs, with bare hands.
•  Wear leather gloves, heavy long sleeve shirt, cuff-less pants, high-topped shoes, helmet, and cap. As necessary, use 

additional fire-resistant protective clothing to cover and protect the upper and lower body. Hot sparks or metal can 

lodge in rolled up sleeves, pant cuffs, or pockets. Sleeves and collars should be kept buttoned and pockets eliminated 

from the shirt front.

•  Have fire extinguisher equipment handy for immediate use. A portable chemical fire extinguisher, type ABC, is 

recommended.

•  Wear ear plugs when welding overhead to prevent spatter or slag from falling into ear.
•  Make sure welding area has a good, solid, safe floor, preferably concrete or masonry, not tiled, carpeted, or made of 

any other flammable material.

•  Protect flammable walls, ceilings, and floors with heat resistant covers or shields.
•  Check welding area to make sure it is free of sparks, glowing metal or slag, and flames before leaving the welding 

area.

•  Wear garments free of oil or other flammable substances such as leather gloves, thick cotton shirts with no synthetic 

materials, cuffless trousers, closed toed shoes. Keep long hair pulled back.

•  Remove any combustibles such as lighters and matches before doing any welding.
•  Follow requirements in OSHA and NFPA for hot work and have an extinguisher nearby.

High Frequency Radiation

•  High Frequency (H.F) can interfere with radio navigation, safety services, computers and communication equipment.
•  It is the user’s responsibility to have a qualified electrician promptly correct any interference problem resulting from the 

installation. Electrician should regularly check and maintain installation.

•  Stop using the equipment if notified by the FCC about interference.
•  Keep H.F. source doors and panels tightly shut and keep spark gaps at correct setting.

Arc Welding

• 

Computers and computer driven equipment can be harmed with electromagnetic energy.

• 

Be sure all equipment is compatible with electromagnetic energy.

• 

Keep welding cables short to reduce interference.

• 

Follow manual to install and ground machine.

• 

If interference continues, shield the work area or move the welding machine.

  WARNING: ELECTRIC SHOCK CAN KILL! 

To reduce the risk of death or serious injury from shock, read, 

understand, and follow the safety instructions. In addition, make certain that anyone else who uses this welding 
equipment, or who is a bystander in the welding area understands and follows these safety instructions as well.

IMPORTANT! TO REDUCE THE RISK OF DEATH, INJURY, OR PROPERTY DAMAGE, DO NOT 

ATTEMPT  OPERA TION 

of this welding equipment until you have read and understand the following safety summary.

•  Do not, in any manner, come into physi cal contact with any part of the welding current circuit. The welding current 

circuit includes: 

a.    the workpiece or any conductive material in contact with it,

b.  the ground clamp,

c.  the electrode or welding wire,

d.  any metal parts on the electrode holder, or TIG torch.

•  Do not weld in a damp area or come in contact with a moist or wet surface.
•  Do not attempt to weld if any part of clothing or body is wet.
•  Do not allow the welding equipment to come in contact with water or moisture.

Electric Shock

Summary of Contents for 220 ST

Page 1: ...ITEM 430 REV 08 08 2019 220 ST STICK TIG ARC WELDER OPERATING MANUAL ENGLISH...

Page 2: ...solutions to our customer s needs Above all our employees will provide the same respect and caring attitude within the organization as they are expected to share with every Forney customer Our goal wi...

Page 3: ...epair or replace defective products at no charge to you When you call Forney s Technical Service department you will speak to a trained product and application expert Forney s primary goal is to get y...

Page 4: ...URCE CONNECTION 10 GENERATORS 11 EXTENSION CORDS 11 VENTILATION 11 ADDITIONAL WARNINGS 11 GETTING TO KNOW YOUR WELDER 12 DESCRIPTION 12 WELDER LAYOUT AND CONTROLS 12 OPERATION 14 PERFORMANCE DATA PLAT...

Page 5: ...your state OSHA office or U S Dept of Labor OSHA Office of Public Affairs Room N3647 200 Constitution Ave Washington DC 20210 www osha gov AWS F4 1 SAFE PRACTICES FOR THE PREPARATION FOR WELDING AND C...

Page 6: ...es are not strictly observed THE WELDING ARC PRODUCES VERY BRIGHT ULTRAVIOLET AND INFRARED LIGHT THESE ARC RAYS WILL DAMAGE YOUR EYES AND BURN YOUR SKIN IF YOU ARE NOT PROPERLY PROTECTED To reduce the...

Page 7: ...improve ventilation in the welding area Do not resume welding if physical discomfort persists Fire Prevention FIRE OR EXPLOSION CAN CAUSE DEATH INJURY AND PROPERTY DAMAGE To reduce these risks read un...

Page 8: ...sher nearby High Frequency Radiation High Frequency H F can interfere with radio navigation safety services computers and communication equipment It is the user s responsibility to have a qualified el...

Page 9: ...und shoulders or any other part of the body when they are plugged into the welder Do not modify any wiring ground connections switches or fuses in this welding equipment Wear welding gloves to help in...

Page 10: ...tings label of your welder The main power supply voltage should be within 10 of the rated main power supply voltage Too low a power supply voltage may cause poor welding performance Too high a power s...

Page 11: ...electing an extension cord appropriate for use with your specific welder Select a properly grounded extension cord that will mate directly with the AC power source receptacle and the welder INPUT POWE...

Page 12: ...there is a general welding or machine fault 5 SECONDARY PARAMETER KNOB SELECTOR for the function selection a PULSE Hz Frequency Pulses per second or Hertz b PULSE On Balance at Peak Amperage Peak c A...

Page 13: ...13 WWW FORNEYIND COM 1 1a 5a 1b 5b 1c 5c 4 3 2 REAR VIEW OF FORNEY 220 ST PRO WELDER 11 12 13 FRONT VIEW OF FORNEY 220 ST PRO WELDER 6 7 8 9 5 10...

Page 14: ...o the duty cycle Various duty cycles at other amperages are listed on your data plate Example Data Plate If you exceed the duty cycle of the welder the thermal protection system will engage shutting o...

Page 15: ...ATIVE DINSE SOCKETS accordingly Direct current electrode positive DCEP or direct current reverse polarity DCRP electrode holder in POSITIVE DINSE SOCKET ground clamp in NEGATIVE DINSE SOCKET Most elec...

Page 16: ...c Use pedal or torch to adjust output amperage while working REMEMBER TO CLOSE THE VALVE ON THE GAS CYLINDER IMMEDIATELY AFTER ALL WELDING IS COMPLETED Welding Tips Always weld clean dry and well prep...

Page 17: ...GSTEN DCEN Th La Ce AC La Ce AC Pure 040 10 50A 20 40A N A 1 16 40 120A 30 170A 30 90A 3 32 90 200A 60 180A 40 120A 1 8 150A 130A 100 200A This machine has a 7 pin Amphenol style connection for connec...

Page 18: ...able does not provide all possible solutions only those possibilities considered likely to be common faults PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION All LEDs OFF No output power Fan not operating No i...

Page 19: ...ircuit breaker trips Machine is drawing too much amperage due to use of larger size electrode Use a smaller electrode Machine is not the only piece of electrical equipment on the circuit Make sure the...

Page 20: ...ORNEYIND COM Machine Parts Diagram Replacement Parts List NO PART NUMBER ITEM DESCRIPTION 1 85668 Ground 50 Dinse 2 85670 Electrode Holder 50 Dinse 3 85516 120 230V Power Adaptor Plug 4 5084 Expert Te...

Page 21: ..._ ________________________________________________________________________________ ________________________________________________________________________________ ____________________________________...

Page 22: ..._ ________________________________________________________________________________ ________________________________________________________________________________ ____________________________________...

Page 23: ..._ ________________________________________________________________________________ ________________________________________________________________________________ ____________________________________...

Page 24: ...Forney Industries Inc 2057 Vermont Drive Fort Collins CO 80525 1 800 521 6038 www forneyind com...

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