HUSKY ST80 Inverter Welder User Guide

Item # 100 695 8739
Model # ST80 USE AND CARE GUIDE

ST80 Inverter Welder

HUSKY ST80 INVERTER WELDER
Questions, problems, missing parts?
Before returning to the store, call Husky Customer Service 8 a.m. – 7 p.m., EST, Monday-Friday
9 a.m. – 6 p.m., EST, Saturday
1-888-43-HUSKY
HUSKYTOOLS.COM

THANK YOU
We appreciate the trust and confidence you have placed in Husky through the purchase of this inverter welder. We strive to continually create quality products designed to enhance your home. Visit us online to see our full line of products available for your home improvement needs. Thank you for choosing Husky!

Safety Information

WORK AREA SAFETY
WARNING: Operating the welding machine without preparation and caution can cause death, injury to yourself or bystanders. To reduce the risks, the operator should read, understand and follow the safety instructions. Besides, bystanders in the area should also follow the safety instructions under the guidance of operator.

• Ensure your work area is clean and well lit.
• Keep the welder on a stable and clean surface while operating.
• Keep children, bystanders and visitors away while operating welding machine. Distractions can cause you to lose control.
• Do not operate machines in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Flying sparks during welding may ignite the dust or fumes.
• Do not leave energized machine unattended. Always turn off the machine before servicing parts, replacing components or when the machine is not in use.

PERSONAL SAFETY
WARNING: Welding processes generate high-temperature arc, welding sparks, hot slag and hot spatters. Welding arc generates extremely intense ultraviolet and infrared light. Failure to wear protective equipment during welding can severely damage your eyes and burn your skin. To reduce the risks, the operator should read, understand and follow the safety instructions. Bystanders in the area should also follow the safety instructions under the guidance of operator.
WARNING: Welding processes generate fumes, gases and vapors which can cause discomfort, illness and death. To reduce the risks, the operator should read, understand and follow the safety instructions. Bystanders in the area should also follow the safety instructions under the guidance of operator.

• Do not weld without proper protection. Flying sparks can cause burn injury. Always wear protective clothing and face shield. The intensive light of the electrical arc can also burn skin. Ensure to wear closed-toe shoes, gloves and clothing with heavy material with long sleeves and collar.
• Do not look at an electric arc without proper eye protection. An electric arc is extremely bright and intense which can burn the eye retina and cause permanent damage when equipped with inadequate or no eye protection.
• Do not weld in confined areas without adequate ventilation. Otherwise, wear an air-supplied respirator.
• Remind bystanders before striking a weld arc and make sure they are at a safe distance and aware of coming intensive welding arc.
• Make sure you are in a proper position while operating the welder. Do not overreach. Keep proper footing and balance at all times, which enables better control of the welder in unexpected situation.
• Stay alert when operating a welding machine. Do not use a machine while you are tired or under the infiuence of drugs, alcohol or medication. Avoid unintentional starting.
• Make sure you read the user manual and are well prepared before welding.

ELECTRICAL SAFETY
WARNING: Improper use of welding machines will cause electric shock. Electric shock can kill. To reduce the risks, the operator should read, understand and follow the safety instructions. Bystanders in the area should also follow the safety instructions under the guidance of operator.

• Do not expose welding machine to rain or come in contact with a wet surface. Water entering a machine will increase the risk of electric shock.

• Do not make contact with any welding current circuits such as ground clamps, electrodes, welding wires, MIG/TIG guns, workpieces, any metal parts/conductive materials in contact with electrode holder/workpieces.

• Do not make contact with any grounded metal surfaces such as metal pipes, radiators and refrigerators. There will be an increased risk of electric shock when your body is grounded.

• Ensure power is disconnected before setting up any TIG torch/MIG gun/electrode holder, adjustment and services.

• Do not abuse any cords. Never carry, pull or unplug the welder by its cord. Keep any cords away from heat, oil, sharp edges or moving parts. Damaged or entangled cords could increase the risk of electric shock.

• Inspect the welder before using it. Do not weld if you observe any damaged and cracked parts, including but not limited to damaged/cracked cables, electrode holders,
  ground clamps and so on. Replace them before using the welder.

• Use an extension cord specific for outdoor use when operating a welder outdoors.

• Do not point torches/welding guns at people when torches/welding guns are energized. Do not point MIG gun at your eyes in any situation.

• Do not weld in damp area or when welding equipment is in contact with water or wet surface.

• Do not weld when body or clothes are wet.

FIRE PREVENTION
WARNING: Failure to protect combustible materials against welding sparks, hot slag and hot spatters can cause fire and even explosion. Fire and explosion can cause death, injury and property damage. To reduce the risks, please read, understand and follow the safety instructions.

• Check the area before welding. Ensure the work area is checked and cleared of combustible and fiammable materials. A minimum distance of 35 feet (10 meters) is
  required between work area and combustibles because 35 feet is an average distance welding sparks and slags can fiy. If the minimum 35 feet distance requirement cannot be met, protect consumable/flammable materials with fire resistant covers or shields.

• Do not weld or cut on or near materials with combustible coating or combustible internal substance, such as materials in walls or ceilings, without any approved methods to eliminate the hazard.

• Do not weld or cut in areas (such as gas station) where the air may contain flammable substances such as combustible dust, gas, or liquid vapors.

• Do not dispose of hot slag in containers holding combustible materials. Keep a fire extinguisher nearby and know how to use it.

• Do not wear gloves, hair preparations, shoes and other clothing that contains oil, grease, or other flammable substances. Wear fire-resistant protective clothing to protect upper and lower body against fire and heat. Protective clothing includes but is not limited to leather gloves, heavy long sleeve and cuffiess shirts, heavy and cuffiess pants, high-topped shoes and helmet.

• Follow requirements in OSHA and NFPA for hot work and have an extinguisher nearby.

• When finished welding, do not leave without a check for evidence of potential fire. Overlooked smoke or flame have risks to cause fire hazard. Check and make sure the welding areas are free of sparks, slags, and flames before leaving the welding area.

USE AND CARE

• Ensure you choose the right welder model and welding mode recommended for your application. Use the welder and accessories in compliance with these instructions.
  Operating a welder under improper conditions could cause unpredictable safety issues.

• Store idle welders out of reach of children. Do not allow people who are unfamiliar with the welder and operational instructions to operate the welder. Ignorance of any safety instructions or operational guidance will result in potential safety risk.

• Replace damaged parts immediately before use. Many accidents are caused by poorly maintained welders.

• Have your welder serviced by a qualified service person if you encounter problems.

ARC WELDING
CAUTION: High frequency and electromagnetic energy generated from the welding process could cause damage to your electronical devices. To reduce the risks, please read, understand and follow the safety instructions.

• Follow manual to install and ground machine. Be sure nearby equipment is compatible with electromagnetic energy.

• Electronic products such as computer, computer-driven equipment and communication equipment can be interfered or even harmed by electromagnetic energy. Users with pacemakers should consult with their physician before using a welder because a pacemaker can be damaged by electromagnetic energy if exposed to it.

• TIG welder and TIG welding process can generate high frequency. High frequency 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 installation or operation of the welder. The welder should be regularly inspected and maintained. If necessary, shield the work area or move the welding machine.

• The warnings, cautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations. It must be understood by the users that common sense and caution are factors which cannot be built into this product, but must be provided by the operator.

Warranty

3 YEAR LIMITED WARRANTY
If this Husky product ever fails due to a defect in material or workmanship, return the product to any Home Depot retail store for replacement with an item of equal or greater value. This warranty excludes incidental / inconsequential damages due to misuse, abuse, or normal wear and tear. This warranty gives you specific rights, and you may also have other rights, which vary from state to state. Please see store or call 1-888-43-HUSKY for details.
HUSKYTOOLS.COM
Please contact 1-888-43-HUSKY for further assistance.

Pre-operation

SPECIFICATIONS

Process| Stick (SMAW – shielded metal arc welding)

TIG (GTAW – gas tungsten arc welding)

---|---
Power Plug| 120V/15A
Open Circuit Voltage| 90V
Duty Cycles| 75A @ 20% (Stick)

80A @ 20% (TIG)

Welding Current Ranges| 10A – 75A (Stick)

10A – 80A (TIG)

Welds Up To| 1/8 in. Steel
Weldable Metals| Steel, stainless steel, cast steel, cast iron, brass, copper, tool steel
Recommended Electrode Diameter| 1/16 in. to 3/32 in.
Suggested Electrode Types| E6011, E6013, E7018, E308L

Symbol

| Description
---|---
| Inverter power source DC
| STICK welding
| TIG welding.
| Suitable for welding in an environment with increased risk of electric shock
| Power supply type of electric device
| Input voltage indicator

Symbol

| Description
---|---
| Warning! Please read user manual.
| Electric shock hazard. Do not touch energized parts.
| Fire hazard. Keep ammable materials away during welding.
| Arc ray hazard. Wear welding mask with properly rated ter lens.
| Inhalation hazard. Keep ventilation.
| Tripped protection/alert indicator

Pre-operation (continued)

PACKAGE CONTENTS

Operation Instruction

1 Preparing for Welding

• Designate a work area that is clean and well lit. Keep children and pets out of the work area.
• Read the user manual and safety guidelines before operating the welder.
• Ensure you understand the basic specification of your welder.
• Wear PPEs to protect your eyes and skin from hot welding sparks and intensive arc rays. Ensure same protections are provided to any bystanders nearby.
• Ensure all the combustible, flammable, hazardous substances are removed from the work area. Make sure a fire extinguisher within reach is available.
• Inspect your welder before each use and do not operate a welder with damaged cables and components. Replace all the damaged parts before use. Have a qualified technician help you if needed.
• Open the gas valve on the gas cylinder (TIG mode only).

2. Setting Up for Stick Welding

• Check the electrode packaging to determine the recommended polarity.
• For direct current electrode positive (DCEP) or direct current reverse polarity (DCRP) welding process, plug ground clamp into negative (-) DINSE socket (E) and plug electrode holder into positive (+) DINSE socket (F). Most electrodes use DCEP.
• Check whether the ground clamp has a good connection to the workpiece and ensure workpieces are clean and dry (not rusty, painted or oily).
• Clamp the welding electrode with electrode holder.
• Switch the ON/OFF Switch (G) to ON at the back of the machine.
• Push the welding mode switch button (D) until STICK mode LED turns on.
• Set the welding current by rotating the amperage adjustment knob (C).

WARNING: Welding processes generate hightemperature arc, welding sparks, hot slag and hot spatters. Welding arc generates extremely intense ultraviolet and infrared light. Failure to wear protective equipment during welding can severely damage your eyes and burn your skin.
WARNING: Failure to protect combustible materials against welding sparks, hot slag and hot spatters can cause fire and even explosion. Fire and explosion can cause death, injury and property damage.

Stick Welding Setting Chart

Material| Electrode Type| Electrode Diameter| Amp
Steel| E6011 E6013| 1/16 in.| 25-40A
5/64 in.| 40-60A
3/32 in.| 50-70A
1/8 in.| 75A

(Difficult)

E7018| 3/32 in.| 75A
Stainless Steel| E308L| 3/32 in.| 40-70A
1/8 in.| 70-75A

(Difficult)

Cannot weld aluminum.

3 Setting Up for Lift TIG Welding

• Connect the ground clamp cable to the positive (+) DINSE socket (F) of the welder.
• Ensure your workpiece is clean and dry and the ground clamp has a good connection to the workpiece.
• Connect the TIG torch cable to the negative (-) DINSE socket (E) of the welder.
• Connect the TIG torch gas line to the gas regulator of a gas tank (argon gas only).
• Install the tungsten electrode into the TIG torch, and keep approximately 1/4 inch out of the torch nozzle.
• Switch the ON/OFF switch (G) to ON at the back of the machine.
• Push the welding mode switch button (D) until TIG mode LED turns on.
• Set the amperage by rotating the amperage adjustment knob (C).
• Open the gas valve on the TIG torch.
• The weld arc can be initiated by a lift arc technique.
• When finished welding, close the gas valve on the TIG torch.
• When all welding completed, close gas valve on the gas cylinder.

Lift TIG Welding Recommendation Table

Material| Tungsten (Ce) Diameter| Amp
Steel, Stainless Steel| 1/16 in. (1.6 mm)| 10-80A
5/64 in. (2.0 mm)| 10-80A
Cannot weld aluminum.
Recommended shielding gas: argon.

Maintenance

• Before each use, inspect the general condition of the welder. Check for loose screws, cracked or broken parts, damaged circuit wiring or cables, and any other potential risks that may cause safety issues. Replace damaged or worn parts, cords/cables or gun assembly.
• After each use of the welder, clean external surfaces of the welder with clean cloth.
• Periodically clean the welder using compressed air to blow out all dust and debris from the interior.
• If the unit continuously shuts down due to thermal overload, please turn off the welder and have a qualified electrician inspect the welder and repair it.
• Store the welder and accessories in a clean and dry location out of reach of children.

Troubleshooting

NOTE: When yellow tripped protection/alert indicator turns on, the possible causes are 1) tripped overheat protection; 2) short circuit alert; 3) tripped overvoltage protection. Please refer to a qualified electrician to check you welder.

No welder output when switched on and neither indicator LED is illuminated.

| □    Loose ground clamp connection.| □ Check and make sure the ground clamp is well attached to the workpiece.
□    No input power supply.| □  Check and make sure welder is plugged in.

□Verify outlet output power.

□ Check the circuit breaker to see whether it is tripped or not. Reset if necessary.

No welder output when switched on and indicator yellow LED/s is/are illuminated.

| □    Tripped thermal protection by overheat (tripped protection/alert indicator turns on).| □  Cool the welder for at least 10 minutes. The tripped protection/alert indicator LED should turn off after welder cools down.

□ Reduce the duration of the welding period, or duty cycle, or duration of use.

□  Check whether the fan inside the welder is working properly.

□    Overheat caused by environmental factors such as high room temperature or insufficient air flow.| □ Relocate to a cool working environment.

□ Check whether there is obstruction blocking air flow in the room. Clear the obstruction if needed.

□    Incorrect input voltage.| □ Check the outlet voltage.

Weak arc strength/non- penetrating weld.

| □    Long or improper extension cord.| □ Use a proper extension cord.
□    Input power is too low.| □Verify your welder’s output voltage and current.

□Ask a qualified electrician for help if necessary.

□    Poor ground clamp, torch or electrode holder connection.| □ Check connection of ground cable, torch or electrode holder and make sure they are well connected.
Frequent circuit breaker trips.| □ Circuit breaker is insufficient for the working current of the welder.| □    Make sure the circuit breaker fits the working current of the welder.

□  Refer to a qualified electrician if you are not able to figure out.

Poor welds.| □    Improper current/voltage setting.| □ Make sure the welding current/voltage matches the recommended setting on chart.
□    Workpiece is not clean (rusty, painted or greasy).| □ Ensure workpiece is clean and dry.
□ Poor ground clamp or torch/electrode holder connection.| □ Check and make sure ground clamp/workpiece have good connection; torch/electrode holder and machine have good connection.
Difficult to start an arc.| □  Welding amperage is low.| □ Increase welding amperage.

Arc is wandering (TIG).

| □Tungsten is too large.| □Use a smaller tungsten.
□Current is too low.| □Increase welding current.

Service Parts

ASSEMBLY DIAGRAM

Questions, problems, missing parts? Before returning to the store, call Husky Customer Service
a.m. – 7 p.m., EST, Monday-Friday, 9 a.m. – 6 p.m., EST, Saturday
1-888-43-HUSKY
HUSKYTOOLS.COM
Retain this manual for future use.

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