LOTOS TECHNOLOGY MIG175 Mig Welder Owner’s Manual

June 16, 2024
LOTOS TECHNOLOGY

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LOTOS TECHNOLOGY MIG175 Mig Welder

Product Information

Specifications

Product Usage Instructions

Safety Warnings and Precautions

Please read and understand the following safety highlights before using the electric welding machine. Ensure that all installation, operation, maintenance, and repair procedures are performed only by qualified individuals. Arc and TIG welding can be hazardous, and it is important to protect yourself and others from possible serious injury or death. Keep children away from the work area and pacemaker wearers should consult with their doctor before operating the welder.

Basic Safety Precautions

  • Read all instructions before using this welder.
  • Keep the work area clean to prevent injuries.
  • Observe work area conditions and avoid using machines or power tools in damp/wet locations or exposing them to rain.
  • Ensure the work area is well-lighted.
  • Avoid using electrically powered tools with flammable gases or liquids.
  • Keep children away from the work area and do not let them handle machines, tools, or extension cords.
  • Store idle equipment in a dry location to prevent rust.
  • Always lock up tools and keep them out of the reach of children.
  • Do not force the tool beyond its intended rate or capacity.
  • Using inappropriate attachments or exceeding the tool capacity can lead to unsafe conditions.
  • Use the right tool for the job and do not attempt to force a small tool or attachment to do the work of a larger industrial tool.
  • Do not modify the welder or use it for any purposes other than those for which it was intended.

FAQ (Frequently Asked Questions)

Q: What should I do before using the welder?

  • A: Before using the welder, carefully read the operation manual to understand the safety warnings and precautions, assembly instructions, operating procedures, and maintenance procedures.

Q: Can children be present in the work area?

  • A: No, children must never be allowed in the work area. Keep them away from machines, tools, or extension cords to prevent accidents.

Q: Can I use the welder in damp locations?

  • A: No, do not use the welder in wet locations. Ensure the work area is dry and well-lighted.

Q: Can I modify the welder for other purposes?

  • A: No, do not modify the welder or use it for any purposes other than those for which it was intended. Modifying the welder can lead to unsafe conditions.

IMPORTANT

  • Save This Manual
  • You will need the manual for safety warnings and precautions, assembly instructions, operating and maintenance procedures, parts list, and diagram.
  • Keep your invoice with this manual.
  • Write the invoice number and date of purchase on the inside of the manual.
  • Keep the manual and invoice in a safe and dry place for future

Operation Manual

  • Carefully read the operation manual before using, installing, and maintaining the electric welding machine to prevent damages such as fire, electric shock, etc. from occurring.
  • Please keep the manual for the reference in the future.

SAFETY WARNINGS AND PRECAUTIONS

  • PLEASE READ AND UNDERSTAND THE FOLLOWING SAFETY HIGHLIGHTS.
  • BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
  • ARC AND TIG WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY.
  • PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING
  • WHEN USING THE WELDER, SHOULD ALWAYS follow ALL BASIC SAFETY PRECAUTIONS TO REDUCE THE RISK OF PERSONAL INJURY AND DAMAGE TO EQUIPMENT.

READ ALL INSTRUCTIONS BEFORE USING THIS WELDER.

  • Keep the work area clean. Cluttered areas invite injuries.
  • Observe work area conditions. Do not use machines or power tools in damp wet locations. Do not be exposed to rain. Keep the work area well-lighted. Do not use electrically powered tools with flammable gases or liquids.
  • Keep children away. Children must be never allowed in the work area. Do not let them handle machines, tools, or extension cords.
  • Store idle equipment. Must store tools in a dry location to inhibit rust when not in use.
  • Always lock up tools and keep them out of the reach of children.
  • Do not force tools. It will do the job better and safer at the rate for which it was intended. Do not use inappropriate attachments in an attempt to exceed the tool’s capacity.
  • Use the right tool for the job. Do not attempt to force a small tool or attachment to do the work of a larger industrial tool. There are certain applications for which this welder was designed. Do not modify this welder and or use it for any other purposes for which it was not intended.
  • Dress properly. Do not wear loose clothing or jewelry which can be caught in moving parts. Protective, flame retardant, electrically non-conductive clothing, and non-skid footwear are recommended when working. Wear restrictive hair covering to contain long hair.
  • Use eye and ear protection. Always wear ANSI ANSI-approved, arc-shaded, impact safety face shield (welding helmet). Always use a full-face shield when welding. Always wear ANSI-approved eyewear under a face shield and while in the workplace. Wear a NIOSH-approved dust mask or respirator when working around metal, chemical clouds of dust, fumes, and mists.
  • Do not overreach. Keep proper footing and balance at all times. Do not reach over or across running machines.
  • Maintain tools with care. Keep tools sharp and clean for better and safer performance. Follow instructions for lubricating and changing accessories. Inspect tool cords periodically and, if damaged, have them repaired by an authorized technician. Must keep the handles clean, dry, and free from oil and grease at all times.
  • Disconnect power. Unplug the tool when not in use.
  • Remove adjusting keys and wrenches. Before plugging in, check that keys and adjustment wrenches are removed from the welder and work area.
  • Avoid starting unintentionally. Be sure the switch is in the off position when not in use and before plugging in. Do not carry any tool with your finger on the trigger, whether it is plugged in or not.
  • Stay alert. Watch what you are doing. Use common sense. Do not operate any tool when tired.
  • Check for damaged parts. Before using any tool, any damaged part should be carefully checked to determine whether it would operate properly and perform its intended function.
  • Check for alignment and binding of moving parts; any broken parts or mounting fixtures; and any other condition that may affect proper operation.
  • Any damaged part should be properly repaired or replaced by a qualified technician. Do not use the tool if any switch does not turn on and off properly.
  • Guard against electric shock. Prevent body contact with grounded surfaces such as pipes, radiators, ranges, and refrigerator enclosures.
  • Replacement parts and accessories.
  • When servicing, use only identical replacement parts. Use of any other parts will void the warranty. Only use accessories intended for use with this welder. Approved accessories are available from our website www.uwelding.com.
  • Do not operate the tool if under the influence of alcohol or drugs. Read warning labels on prescriptions to determine if your judgment or reflexes are impaired while taking drugs. If there is any doubt, do not operate the welder.
  • Maintenance. For your safety, service, and maintenance should be performed regularly by a qualified technician.
  • Use the proper size and type of extension cord. If an extension cord is required, it must be of the proper size and type to supply the correct current to the welder without heating up. Otherwise, the extension cord could melt and catch fire, or cause electrical damage to the welder. This welder requires the use of an extension cord of 20amps minimum capability up to 30 feet, with a wire size rated at 12 AWG. Longer extension cords require larger size wires. If you are using the welder outdoors, use an extension cord rated for outdoor use, signified by “WA” on the jacket. The performance of this welder may vary depending on the condition of the local line voltage. Extension cord usage may also affect welder performance.
  • The warnings, cautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur.
  • Commonsense and caution are factors, that cannot be built into this product and must be supplied by the operator.

ARC WELDER SAFETY WARNINGS AND PRECAUTIONS

  • Warning: When used for welding and similar applications, this product produces chemicals that cause cancer and birth defects (or other reproductive harm).

ELECTRIC SHOCK can be fatal

  • The electrode and work (or ground) circuits are electrically “hot” when the machine is on. Do not touch these “hot” parts with your bare skin or wet clothing.
  • Protective clothing should be hole-free, dry, and ANSI-approved. Wear dry, hole-free gloves to insulate your hands.
  • Do not permit electrically live parts, cables, or electrodes to contact skin, clothing, or gloves.
  • This unit draws enough current to cause serious injury and or death.
  • Before turning the welder on, check the welder gun to ensure that there are no protruding screw heads and that all insulation is secure.
  • Insulate yourself from work and ground using dry insulation. Make certain the insulation is large enough to cover your full physical contact with work and ground.
  • Always be sure the work cable makes a good electrical connection with the metal.
  • Ground the work metal to be cut to a good electrical (earth) ground.
  • Maintain the welding torch, work clamp, power cable, and cutting machine in good, safe operating condition. Replace damaged insulation.
  • Never dip the electrode in water for cooling.
  • When working above floor level, use a safety belt to protect yourself from a fall should you get a shock.

FUMES & GASES can be dangerous

  • Plasma cutting may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases.
  • When cutting, keep your head out of the fume.
  • Use enough ventilation and/or exhaust at the arc to keep fumes and gases away from the breathing zone. In confined spaces or some circumstances, outdoors, a respirator may be required.
  • Additional precautions are also required when cutting on galvanized steel.
  • Do not cut in locations near chlorinated hydrocarbon vapors coming from degreasing, cleaning, or spraying operations.
  • The heat and rays of the arc can react with solvent vapors to form phosgene, a highly toxic gas, and other irritating products.
  • Read and understand the manufacturer’s instructions for this equipment and the consumables, including the material safety data sheet (MSDS), and follow your employer’s safety practices.
  • MSDS forms are available from your welding distributor or the manufacturer.

ELECTRIC &MAGNETIC FIELDS may be dangerous

  • The EMF field that is generated during arc welding may interfere with various electrical and electronic devices such as cardiac pacemakers.
  • Anyone using such devices should consult with their physician before performing any electric welding operations.
  • Exposure to EMF fields while welding may have other health effects, which are not known.

ARC RAYS can burn

  • Avoid eye and body damage. Arc rays and infrared radiation can cause injury to the eyes and burn the skin. Wear ANSI-approved eye and body protection. Do not allow viewing by visitors without proper eye and body protection.
  • Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when plasma cutting or observing open arc plasma cutting.
  • Use suitable clothing made from durable flame-resistant material to protect your skin and your helpers from the arc rays.
  • Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays, hot spatter, or metal.

WELDING SPARKS can cause fire or explosion

  • Avoid eye and body damage. Arc rays and infrared radiation can cause injury to the eyes and burn the skin. Wear ANSI-approved eye and body protection. Do not allow viewing by visitors without proper eye and body protection.
  • Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when plasma cutting or observing open arc plasma cutting.
  • Use suitable clothing made from durable flame-resistant material to protect your skin and that of your helpers from the arc rays.
  • Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays or hot spatter or metal.

CYLINDER may explode if damaged

  • Use only compressed gas cylinders containing the correct shielding gas for the process used and properly operating regulators designed for the gas and pressure used.
  • All hoses, fittings, etc. should be suitable for the application and maintained in good condition.
  • Always keep cylinders in upright and securely chained to an undercarriage or fixed support.

Cylinders should be located:

  • Away from areas where they may be struck or physically damaged.
  • A safe distance from arc welding or cutting operations and any other heat source, sparks, or flame.
  • Never allow any electrically “hot” parts to touch a cylinder.
  • Keep your head and face away from the cylinder valve outlet when opening the cylinder valve.
  • Valve protection caps should always be in place and hand-tight except when the cylinder is in use or connected for use.

ELECTRICALLY POWERED EQUIPMENT can be dangerous

  • Turn off input power using the disconnect switch at the fuse box before working on the equipment.
  • Install equipment per the local codes and the manufacturer’s recommendations.

MOVING PARTS can cause injury

  • Ground the equipment under the manufacturer’s recommendations.
  • Keep away from moving parts such as fans.
  • Keep all doors, panels, covers, and guards closed and securely in place.

CALIFORNIA PROPOSITION 65 WARNINGS

  • Welding or cutting equipment produces fumes or gases that 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.)
  • Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

For Gasoline Engines:

  • Engine exhaust contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

For Diesel Engines:

  • Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.
  • PLEASE READ THIS OPERATION MANUAL CAREFULLY AND THOROUGHLY BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
  • KEEP THIS MANUAL HANDY FOR QUICK REFERENCE. PAY CLOSE ATTENTION TO THE SAFETY INSTRUCTIONS PROVIDED FOR YOUR PROTECTION.

SPECIFICATIONS

GENERAL DESCRIPTION

  • The LOTOS MIG175 features a 175 amp MIG welder that can weld at industrial quality and performance at a very affordable price. The most versatile and perfect welder for do-it-yourself both home users and professional users.
  • The LOTOS MIG175 is also a spool gun capable of welding aluminum. It handles industrial standard 4” or 8” wire spools and incorporates a thermal overload protection system to protect your welder.
  • 175-amp MIG Welder with mask, etc.
  • Operates on 220V, Single phase 50/60Hz
  • Suitable for welding stainless steel, mild steel, aluminum (with a spool gun), and other metal materials

WHAT’S INCLUDED

LOTOS-TECHNOLOGY-MIG175-Mig-Welder-fig-9

 | MIG175|
---|---|---


**** General Specifications

| Output Power| DC
Input Voltages| 220 V, 1-PH, 50/60 Hz
**** Dimensions| 17.7” (450mm) L

7.8” (200mm) W

14.1” (360mm) H

Weight| 27.5 lbs (12.5kg)
Rated Duty Cycle1| 20% @ 175A







Welding

| Gas Supply| Clean, dry, oil-free 75% argon & 25% CO2
Recommended gas inlet flow rate/pressure| ****

12 – 14L/min


Wire Range

| .025”-.030” (0.6-0.9mm) solid steel

.030”-.035” (0.6-0.9mm) Flux-Cored



Material

| Mild Steel| 24 Gauge – 1/4”
Stainless Steel| 24 Gauge – 1/4”
Aluminum| 24 Gauge – 3/16”

**** Warranty| New Unit| 1-Year Warranty
Refurbished Unit| 60-Day Warranty
 |


1     Duty Cycle is a percentage of 10 minutes that the unit can weld at rated load without overheating.LOTOS-TECHNOLOGY-MIG175-Mig-Welder-
fig-10

  • The unit is connected to the supply even if the Power Switch is in the “OFF” position, and therefore there are electrically live parts inside the power source. Carefully follow the instructions given in this manual.

FRONT CONTROL PANEL

FRONT CONTROL PANEL

1| Power Switch
2| Wire Feed Speed Adjustment Knob and Speed Display(Inch/Min)
3| Potentiometer Knob and Voltage Display(V)
4| Gun Trigger Lead Connectors
5| 2T/4T Switch
6| Positive (+) and Negative (-) output terminals

Setting Instructions:

  1. Begin by setting the wire speed according to the Suggested Settings Table on the machine. The voltage will change synchronously.
  2. In most cases, there is no need to adjust the voltage. If the welding wire melts too quickly, slightly adjust by lowering the voltage. If the welding wire melts too slowly, slightly adjust by increasing the voltage.
  3. Press the Wire Speed Knob to switch between quick adjustment and fine adjustment.

SIDE COMPONENTS

SIDE COMPONENTS

7| Wire Feeder Gearbox
8| Wire Spool Spindle/Shaft
9| Wing Screw (to fasten welding gun)
10| Mode Switch (for optional spool gun)

MACHINE REAR

REAR COMPONENTS

11| Power Cord
12| Reset Overload Protective Device1
13| Shielding Gas Inlet Fitting

INSTALLATION

  • PLEASE READ THE ENTIRE INSTALLATION SECTION BEFORE STARTING INSTALLATION. BE SURE THAT ONLY QUALIFIED PERSONNEL SHOULD PERFORM THIS INSTALLATION.
  • Have a qualified electrician install and service this equipment.
  • Turn the input power OFF and unplug the machine from the receptacle before working on this equipment.
  • Allow the machine to sit for 5 minutes minimum to allow the power capacitors to discharge before working inside this equipment.
  • Do not touch electrically hot parts.
  • The machine must be plugged into a receptacle that is grounded according to the National Electrical Code and local codes.
  • Do not remove or defeat the purpose of the power cord ground pin.

SELECT SUITABLE LOCATION

  • The machine will operate in harsh environments. Even so, standard measures must be followed to ensure the machine is long-lasting and reliable operation.
  • The machine must be located where there is open space such that the air circulation in the back and out the front will not be restricted.
  • Avoid getting dirt and dust in the machine. Failure to observe these precautions can result in excessive operating temperatures and shutdown.

ENVIRONMENTAL AREA

  • Keep the machine dry. Do not place it on wet ground or in puddles. Avoid rainwater.
  • Operating in rain is not allowed.

GROUNDING (WORK) CLAMP INSTALLATION

  • Connect the ground clamp to the negative (-) output terminal
  • NOTE: This above method of connection is GMAW. When gasless flux-cored wires are used.
  • Connect the cable of the ground clamp to the positive (+) output terminal of the welding machine.

WELDING GUN INSTALLATION

  • There is one spool of .025” (0.6mm) solid welding wire included with the welder. The welding gun comes with a .025” (0.6mm) contact tip installed. If .030-.035” (0.8- 0.9mm) wire is to be used, change the contact tip to the appropriate size.

CONNECT THE WELDING GUN TO THE WELDING MACHINE

  • Power off the welding machine (switch is positioned at “O”) 1○.
  • Plug the welding gun into the Gun Trigger Lead Connectors hole and plug it into to the connector block. Also, thread the control wire of the welding gun through the access hole 2○ and inset the control wire into the gun trigger connector terminals 3○.
  • Tighten the wing screw 6○ attached to the connector block of the wire feed gearbox.
  • Make sure the Gun changing switch 9○ is in the correct position MIG for standard welding and Spool Gun if an optional gun is installed.

WIRE DRIVE ROLL INSTALLATION

  • The reversible dual groove wire drive roll attached to MIG175 has two wire grooves; One for .025” (0.6mm) solid welding wire and the other for .030-.035” (0.8-0.9mm) solid or flux-cored welding wire.
  • The factory default installation is .025” (0.6mm).
  • If .030” (0.8mm) – .035” (0.9mm) welding wires are used, the wire feed roll groove must be changed.
  • Ensure that the MIG175 welding machine is powered off.
  • Unlatch the spring-loaded pressure arm open the idle roll arm 9○ and lift the idle roll arm 6○.
  • Loosen the plastic screw 11○ that attaches the wire drive roll.
  • Remove the wire drive roll 10○ and flip the wire drive roll over so that the .030” (0.8mm) mark faces the user.
  • Reinstall by putting back the wire drive roll and tighten the plastic screw.

WELDING WIRE INSTALLATION

  • The MIG175 welding machine can use wire spools up to 8“in diameter (200mm) and a maximum width of under 2” (50mm). If you use the smaller 4“diameter (100mm) wire spools the 2” (50mm) spindle adapter must be removed.

FOR INSTALLATION OF A 8” (200MM) WELDING WIRE SPOOL (SEE FIGURE D-1).

  • Install the 8” (200mm) welding wire spool ○1 on the wire spindle 2. Make sure the wire spool spindle tab engages the hole in the wire spool.
  • (Note: The wire spool will rotate clockwise when the wire is de-reeled).

FOR INSTALLATION OF A 4” DIAMETER (100MM) WELDING WIRE SPOOL

  • (SEE FIGURE D-2).
  • The 2” (50mm) diameter spindle ○4 must be removed○2 . Remove the wing screw○5 and remove the outside plastic wire spool spindle○ 6. A 4” (100mm) diameter spool is mounted directly on a 5/8” (16mm) diameter shaft and held in place with the previously removed hardware○7. (NOTE: The wire spool will rotate clockwise when the wire is de-reeled)
  • Also, make certain the start end of the welding wire, which may protrude through the side of the spool does not contact any metallic case parts.

THREAD THE WELDING WIRE THROUGH THE WIRE FEEDER BY FOLLOWING THE INSTRUCTIONS SHOWN BELOW (SEE FIGURE D-3)

  • Release the spring-loaded pressure arm 1○ of the wire feeder and lift up the idle roll arm 2○.
  • (Note: the groove size in the feeding position on the drive roll matches the wire size being used, see chapter describing the installation to wire feed roll).
  • Pull out the welding wire○3 from the welding wire spool carefully; To prevent the spool from unwinding, maintain tension on the wire until after Step 5.
  • Cut off the starting end of the welding wire from the wire spool and straighten the lead section of wire from the spool approximately 4” (100mm) long.
  • Thread the welding wire through and into the hole○4 of the inlet guide tube, threading it over.
  • the wire drive roll○5 and into the hole○6 of the outlet guide tube on the gun side. Push the wire into the tailpiece of the gun approximately 6 inches.
  • Place the idle roll arm back into the operating position and reset the spring-loaded pressure arm○1 of the wire feeder.LOTOS-TECHNOLOGY-MIG175-Mig-Welder-fig-18

SHIELDING GAS INSTALLATION

  • Compressed gas cylinder containing mixed gas of, 75% Argon and 25% CO2 should be used when using the MIG (GMAW – GAS Metal Arc Welding).
  • The flow regulator and supply hose are included with your welder.
  • The compressed gas can be obtained from your local welding supplier.
  • Fix the compressed gas cylinder with a chain, or other method to the wall or other securing devices, to prevent the cylinder from falling.
  • After securing, remove the cylinder cap if there is one on your cylinder.
  • Install the flow regulator (CGA-580) to the supply valve on the cylinder and tighten it with a wrench.
  • Install one end of the gas supply hose into the outlet of the flow regulator and tighten it. Connect the other end of the hose to the gas inlet at the rear of the MIG175 welding machine (The connector nipple 5/8-18 adapts to CGA-032)
  • . Ensure that the hose has no twisting or knotting.
  • Slowly turn on the gas cylinder valve.
  • Depress the gun trigger switch and adjust the flow regulator to 25-30 cubic ft per hour (CFH), (12-14 l/min).
  • Shut off the valve of the gas cylinder. Depress the gun trigger to release the gas in a system. Power off MIG175, when the welding process is finished.
  • NOTE: Always keep the valve of the gas cylinder closed when not in use.LOTOS-TECHNOLOGY-MIG175-Mig-Welder-fig-19

OPERATION

  • PLEASE READ AND UNDERSTAND THIS ENTIRE SECTION BEFORE OPERATING YOUR MACHINE. ONLY QUALIFIED PERSONNEL SHOULD OPERATE THIS EQUIPMENT.
  • OBSERVE ALL SAFETY INFORMATION THROUGHOUT THIS MANUAL.
WELDING OPERATIONS

ELECTRIC SHOCK can be fatal

  • Have an electrician install and service this equipment.
  • Turn the input power off at the fuse box, disconnect or unplug supply lines, and allow the machine to sit for five minutes minimum to allow the power capacitors to discharge before working inside this equipment.
  • Do not touch electrically hot parts. Turn the input power OFF and unplug the machine from the receptacle before working on this equipment.

FUMES AND GASES can be dangerous

  • Keep your head out of fumes.
  • Use ventilation or exhaust to remove fumes from the breathing zone

WELDING SPARKS can cause fires or explosions

  • Keep flammable material away.
  • Do not weld, cut, or gouge on containers that have held combustibles.

ARC RAYS can burn

  • Wear eye, ear, and body protection.

WELDING STEPS

  • Make sure the power is off on the MIG175 welding machine
  • Remove the nozzle and contact the tip
  • Power on MIG175 welding machine
  • Straighten welding gun
  • Hold the trigger of the welding gun (depressing the trigger will feed the welding wire into the welding gun.) When the welding wire is exposed at the outlet side of the welding gun, release the trigger switch of the welding gun
  • Make sure the power is off on the MIG175 welding machine
  • Reinstall the nozzle and contact tip
  • Cut off the welding wire 1/4-1/2” (6-10mm) away from the tip end of the welding gun and get ready for welding

WELDING PROCESS

  • Please refer to the “Welding Control Guide” which is located inside the welding machine door for the output voltage and wire feed rates.
  • Inspect output polarity according to the welding wire being used and ensure whether or not shielding gases are needed.
  • Connect the ground (work) clamp to the piece(s) to be welded; there should be a good connection for the ground (work) clamp to the piece(s).
  • The welding gun should be able to move freely in the area of the piece(s) to be welded.
  • Power on the MIG175 welding machine
  • Pull down the welding protective helmet, press the trigger of the welding gun, and begin to weld.
  • Keep the contact tip of the welding gun at around 3/8” to 1/2” (10-13mm) away from the piece(s) to be welded.
  • Release the trigger of the welding gun and the welding is stopped.
  • After welding, turn off the valve of the compressed gas cylinder (if gas is used) and then press the trigger of the welding gun to release compressed gas into the system.
  • Finally, power off the MIG175 welding machine.
OVERLOAD PROTECTION

OVERLOAD PROTECTION FOR POWER SUPPLY TO WELDING

  • The MIG175 Welding Machine is equipped with a circuit breaker and a thermostat, which protects the machine from damage if maximum output is exceeded.
  • The circuit breaker button will extend out when tripped.
  • The circuit breaker must be manually reset. Wait for several minutes while the welding machine cools down and reset the circuit breaker button.

THERMAL PROTECTION

  • The MIG175 has a rated output duty cycle of 20%. If the duty cycle is exceeded, a thermal protector will shut off the output until the machine cools to a reasonable operating temperature.
  • This is an automatic function and does not require user intervention. The fan continues to run during cooling.

OVERLOAD PROTECTION TO WIRE FEEDER

  • The MIG175 model has two automatic circuits to protect the motor of the wire drive.

OTHER ACCESSORIES

References

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