PROPOINT 8958696 Le manuel du propriétaire

Marque: PROPOINT

Modèle: 8958696

Catégorie: Système de soudage

Taper: Le manuel du propriétaire

V1.2 8958696

Please read and understand all instructions before use. Retain this manual for future reference.

PRO.POINT 105I MIG

GAS/FLUX-CORED WELDER

USER MANUAL

8958696 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER V1.2

2 For technical questions call 1-800-665-8685

Specifications

SPECIFICATIONS

Input Voltage

115VAC

Output Current Range

40 to 105A

Max. Amperage Draw

26.5A

MIG Welding Output @ 20% Duty Cycle

105A

AC/DC Output

No-Load Voltage

46V

Welding Capacity

3/16 in. Mild Steel and Stainless Steel

Wire Feed Speed

Automatic

Welding Wire Diameter

0.023 / 0.030 / 0.035 in.

Welding Wire Type

FCAW: AWS E71T-GS and GMAW: AWS ER70S-6

Welding Gas

Argon, Argon & CO2 mix, or CO2 (requires adapter)

Insulation Class

Power Factor

0.74

Dimensions (L x W x H)

14 x 5.2 x 9.85 in.

Generator Compatible

Yes

Weight

13 lb

INTRODUCTION

The Pro.Point 105i MIG Gas/Flux-Cored Welder incorporates the latest in IGBT technology for

maximum efficiency and longer duty cycles. The welding unit has both a gas and gasless option.

The wire feed speed is automatically calibrated based on the wire size and Synergic control

knob settings.

SAFETY

WARNING! Read and understand all instructions before using this tool. The operator must follow

basic precautions to reduce the risk of personal injury and/or damage to the equipment.

Keep this manual for safety warnings, precautions, operating or inspection and maintenance

instructions.

HAZARD DEFINITIONS

Please familiarize yourself with the hazard notices found in this manual. A notice is an alert that

there is a possibility of property damage, injury or death if certain instructions are not followed.

DANGER! This notice indicates an immediate and specific hazard that will result in severe

personal injury or death if the proper precautions are not taken.

WARNING! This notice indicates a specific hazard or unsafe practice that could result in

severe personal injury or death if the proper precautions are not taken.

CAUTION! This notice indicates a potentially hazardous situation that may result in minor or

moderate injury if proper practices are not taken.

PRO.POINT 105I MIG

GAS/FLUX-CORED WELDER

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NOTICE! This notice indicates that a specific hazard or unsafe practice will result in

equipment or property damage, but not personal injury.

WORK AREA

1. Operate in a safe work environment. Keep your work area clean, well-lit and free of distractions.

2. Remove all unnecessary people from the work area when welding. Anyone remaining in the

work area must wear the appropriate welding safety equipment.

3. Store tools properly in a safe and dry location. Keep tools out of the reach of children.

4. Do not install or use in the presence of flammable gases, dust or liquids.

5. Welding sparks and ejected molten slag can start a fire. Remove combustible materials

within 39 ft (12 metres) of the welding unit. See Fire and Explosion Precautions.

6. Have a fire extinguisher readily available (see Fire and Explosion Precautions).

7. Use protective screens or barriers to protect others from flash and glare; warn others in the

area to look away from the arc.

8. Keep the welding unit at least one foot from any wall or structure.

9. Check that the work area is free from fires, sparks or hot debris before leaving.

PERSONAL SAFETY

WARNING! Wear personal protective equipment approved by the Canadian Standards

Association (CSA) or American National Standards Institute (ANSI).

HEAD PROTECTION

DANGER! Never look directly at the welding arc without the proper protection. The light can

cause flash burn damage and impair vision. Although treatment is possible, multiple

occurrences can result in permanent eye damage.

1. Protect your eyes from welding light by wearing a welder's helmet fitted with a filter shade

suitable for the type of welding you are doing. The welding process produces intense white

light, infrared and ultraviolet light, these arc rays can burn both eyes and skin.

1.1. Consult the Welding Shade Guide in Appendix A for the minimum shade to protect the

eyes based on the amperage and type of welding.

2. An opaque helmet will protect against the ultraviolet or infrared light. A helmet will also

protect against ejected hot material and slag. The helmet should protect the face, forehead,

ears and neck.

3. Wear a fire-resistant head covering like a skull cap or balaclava hood to protect your head

when the faceplate is down or when using a welding hand-held face shield.

4. Wear ventilated safety goggles beneath the welding helmet or behind the hand-held face

shield. The cooling weld bead may fragment or eject slag that can damage the eyes, when

the helmet or hand-held face shield is not in place.

4.1 Eye protection equipment should comply with CSA Z94.3-07 or ANSI Z87.1 standards

based on the type of work performed.

5. Wear fire resistant ear plugs when welding overhead to prevent spatter or slag from falling

into ear.

PROTECTIVE CLOTHING

1. Wear a leather apron or jacket, leather welding gloves and full foot protection. Choose clothing

fabrics that resist sparks, heat, flames and splashes of molten material. Artificial fabrics may

burn and melt, resulting in a more severe injury.

1.1 Wear welding capes and sleeves when performing overhead welding.

2. Do not wear clothes or protective gear that are frayed, oily or greasy as they may ignite

from the heat or ejected slag and sparks.

8958696 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER V1.2

4 For technical questions call 1-800-665-8685

3. Wear thick clothes that do not expose the skin. Ultraviolet or infrared light can burn skin

with sufficient exposure.

4. Do not wear clothing that can hold hot debris or sparks such as pant cuffs, shirt pockets or

boots. Choose clothing that has flaps over pockets or wear clothing to cover the openings

such as pant legs over the boots or an apron over the shirt.

5. Gloves should contain an insulating lining to protect against an electric shock.

6. Rubber soled footwear or electrically insulated work boots are recommended while

working with a welding unit. The non- skid sole is will also help maintain footing and

balance during work.

6.1 Select boots with steel toe protection to prevent injury from falling objects.

RESPIRATORS

1. Respiratory protection is needed when ventilation is not sufficient to remove welding fumes

or when there is risk of oxygen deficiency.

1.1. Wear a NIOSH approved respirator when working on materials that produce dust or

particulate matter.

2. Work in a confined space only if it is well ventilated or while wearing an air-supplied

respirator. Welding fumes and gases can displace air and lower the oxygen level causing

injury or death. Be sure the breathing air is safe (See Fumes and Gases).

3. The user can take the additional precaution of informing another person in the work area of

the potential danger, so that person can watch for indications that the user is suffering from

oxygen deprivation.

PERSONAL PRECAUTIONS

Control the tool, personal movement and the work environment to avoid personal injury or

damage to the tool.

1. Do not operate any tool when tired or under the influence of drugs, alcohol or medications.

2. Avoid wearing clothes or jewelry that can become entangled with the moving parts of a

tool. Keep long hair covered or bound.

3. Remove all jewelry or metal items from your person before welding. Metal items may

connect to the welding unit’s electrical circuit, causing an injury or death.

4. Do not overreach when operating the tool. Proper footing and balance enable better control in

unexpected situations.

5. Support the workpiece or clamp it to a stable platform. Holding the workpiece by hand or

against your body may lead to personal injury.

6. Do not wear any personal grooming products that are flammable, such as hair preparations,

perfume or cologne with an alcohol base.

7. Remove any combustibles, such as butane lighters or matches, from your person before

doing any welding. Hot welding sparks may light the matches or ignite leaking lighter fuel.

SPECIFIC SAFETY PRECAUTIONS

WARNING! DO NOT let comfort or familiarity with product (gained from repeated use)

replace strict adherence to the tool safety rules. If you use this tool unsafely or incorrectly,

you can suffer serious personal injury.

Welding produces sparks, molten slag, intense white light, plus infrared and ultraviolet light. A

cooling bead can eject chips or fragments of slag. Any of these can cause direct harm to the

eyes and skin of the welder or bystanders.

1. Use the correct tool for the job. This tool was designed for a specific function. Do not

modify or alter this tool or use it for an unintended purpose.

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2. Protect against reflected arc rays. The rays can reflect off a shiny surface behind the user,

into the helmet and off the filter lens into the eyes. Remove or cover any reflective surface

behind the user such as a glossy painted surface, aluminum, stainless steel or glass.

3. Welding produces sparks and molten slag. A cooling bead can eject chips or fragments of

slag. Any of these can cause direct harm to the eyes or skin of the user or bystanders.

4. Erect protective screens or barriers to protect bystanders from the flash and glare; warn

others in the area not to watch the arc. Do not strike a welding arc until all bystanders and

you (the user) have welding shields and/or helmets in place.

5. Immediately replace a cracked or broken helmet or a scratched or damaged lens filter to

avoid damage to the eyes or face from arc flash or ejected molten material.

6. Do not allow the welding torch to accidentally touch the ground clamp or grounded work. An

arc flash will result from contact and can injury the unprepared user and bystanders.

7. Do not handle hot metal or welding wire stubs with bare hands. Handling may result in a burn

injury.

8. Do not use the welding unit if personal movement is confined or if there is a danger of falling.

9. Keep all panels and covers securely in place when operating the welding unit.

10. Insulate the ground clamp when not connected to a workpiece to prevent contact with any

metal object.

11. Do not operate the welding unit if the welding torch or welding cable is wet. Do not

immerse them in water. These components and the welding unit must be completely dry

before attempting to use them.

12. Do not point the welding torch at any body part of yourself or at anyone else.

13. Do not use a welding unit to thaw frozen pipes.

14. Insulate yourself from the work and the ground using dry insulation. Make certain that the

insulation is large enough to cover your full area of physical contact.

15. When not welding, make certain that no part of the welding wire circuit is touching the

workpiece or the ground. Accidental contact can cause overheating and create a fire hazard.

16. Maintain good ventilation of the louvres on this equipment. Good ventilation is of critical

importance for the normal performance and service life of this equipment.

FIRE AND EXPLOSION PRECAUTIONS

Welding can produce sparks, hot slag or spatter, molten metal drops and hot metal parts that

can start fires.

1. Clear the floor and walls of an area of all combustible and/or flammable materials up to

39 ft (12 metres) away from the welding unit. Hot debris ejected during welding can land

at a considerable distance away. Solid floors of concrete or masonry is the preferred

working surface.

1.1 Cover any combustible material with fire resistant covers or shields, if it cannot be

removed. The covering must be tight and should not leave openings for sparks or

ejected slag to enter.

1.2. Check both sides of a panel or wall for combustible material. Remove the combustible

material before welding.

2. A combustible floor should be protected with a fire-resistant covering. Alternatives are to

spray the floor with water to keep it wet for the duration of the welding or cover with damp

sand. Care must also be taken to avoid an electric shock when this is done. A combustible

floor directly laid onto concrete does not need to be sprayed with water.

8958696 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER V1.2

6 For technical questions call 1-800-665-8685

3. Seal cracks and openings to adjacent areas that a spark or slag can enter. Seal any openings

found with a fire-resistant cover. Shut doors and windows that do not provide ventilation or

erect protective screens in front of them when possible.

4. Avoid welding near hydraulic lines or containers containing flammable contents.

5. Do not perform any welding work on containers that held flammable or toxic substance

until they are cleaned by a person trained in removing toxic and flammable substances and

vapours per the American Welding Standard AWS F4.1.

6. Open a container before performing any welding work on it. The heat generated by the

welding process will cause the air and gases to expand. The internal pressure may cause a

sealed or closed container to rupture, possibly causing an injury or death.

7. Do not weld pipes or metal that are covered in combustible material or in contact with

combustible structure such as a wall. Only weld if the covering can be safely removed.

7.1 Follow all safety precautions and legal requirements before welding a workpiece that

contains Asbestos or attempting to remove the Asbestos covering. This requires expert

knowledge and equipment.

7.2 Molten slag can run down the inside and outside of a pipe and start a fire. Be aware

where the pipe terminates and take precautions.

8. Do not weld a panel that is a sandwich construction of combustible and metal materials.

9. Have a fire extinguisher available for immediate use. A dry chemical fire extinguisher for

Types A, B and C is suggested.

9.1 Welding a combustible metal like zinc, magnesium or titanium requires a Type D

fire extinguisher.

9.2 Do not use liquid-based fire extinguishing methods near the electric welding unit, as it

may cause a shock hazard.

10. Ventilation systems should be positioned so sparks or molten slag isn’t carried to an

adjacent area.

11. Have a Fire Watcher observing areas outside of the welder’s view, such as the opposite side

of a wall or behind the welder. A fire may also start on the other side of a structure that

could not be removed. The Fire Watcher will extinguish a fire or raise the alarm to evacuate

if the fire cannot be contained by the extinguishing equipment.

11.1 A fire watch extends at least 30 minutes after the welding is complete to ensure there

are no fires caused by smoldering sparks or ejected material.

FUMES AND GASES

WARNING! Stop welding and move to a location with ventilation if your eyes, nose or throat

become irritated. This indicates the ventilation is not adequate to remove the fumes. Do not

resume welding until the ventilation is improved and the discomfort ceases. Seek medical

attention if the symptoms do not diminish or if the welder experiences nausea, dizziness

or malaise.

Welding may produce hazardous fumes and gas during the welding process. A well-ventilated

work area can normally remove the fumes and gases, but sometimes the welding produces

fumes and gases that are hazardous to your health.

1. Only work in a confined space if the area is well ventilated or while wearing a respirator or

an air-supplied respirator. Welding fumes and gases can displace air and lower the oxygen

level causing injury or death. Be sure the breathing air is safe. Always have a trained

watchperson nearby.

1.1 If ventilation in the work area is poor, use an approved air-supplied respirator. All the

people in the work area must also have air-supplied respirators.

1.2 Oxygen displacement can occur in confined areas when the shielding gas fills the area

and pushes out air. Argon, Propane and Carbon Dioxide are heavier than air and will fill

a confined space from the bottom up.

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2. Avoid positions that allow welding fumes to reach your face. Always attempt to weld ‘upwind’

of the workpiece with the airflow across the face of the welder. Airflow from behind may create

a low-pressure area in front of the welder and draw the fumes to the person.

3. Ventilate the work area to remove welding fumes and gases. The fumes and gases should

be drawn away from the user.

3.1 Ventilation should be enough to disperse fumes, but not enough to disturb the

shielding gas or flame during welding.

3.2 Ventilation exhaust shall be directed to a non-work area to avoid exposing other people

to potential toxic or dangerous fumes.

3.3 Air removed from the work area by the ventilation system must be replenished with fresh

air to avoid oxygen starvation or a build-up of fumes or gases. Only use air to provide

ventilation. Any other combination of gases may be explosive or toxic to people in the

work area.

3.4 Ventilation methods that remove gas and fumes from the welding point before they

reach the welder’s face should be given preference.

4. Avoid welding in a work area that has vapours from cleaning, degreasing or any spraying

operations. The heat and light from welding can react with the vapour and form irritating or

potentially toxic gases. Wait for the vapours to disperse.

5. Consult the manufacturer's Safety Data Sheets (SDS) for instructions and precautions

about metals, consumables, coatings, cleaners and degreasers.

5.1 Do not weld on coated metals such as galvanized, lead or cadmium plated steel, unless

the coating is removed from the weld area. The coatings and any metals containing

these elements can give off toxic fumes during the welding process.

5.2 Do not weld, cut or heat lead, zinc, cadmium, mercury, beryllium or similar metals without

seeking professional advice and inspection of the welding area’s ventilation. These metals

produce extreme toxic fumes, which can cause discomfort, illness and death.

5.3 Do not weld or cut near chlorinated solvents or in areas that chlorinates solvents can

enter. The heat or ultraviolet light of the arc can separate chlorinated hydrocarbons into

a toxic gas (phosgene) that can poison or suffocate the user or bystanders.

6. Check the Safety Data Sheet for the proper handling and safety precautions for

consumable welding rods as the coating can have multiple chemicals.

COMPRESSED GAS CYLINDER PRECAUTIONS

WARNING! Improper handling or maintenance of compressed gas cylinders and regulators

can result in serious injury or death. Do not use a cylinder or its contents for anything other

than its intended use.

1. Only use inert or nonflammable gas with the welding unit, such as Carbon Dioxide, Argon or

Helium with the welding unit.

1.1 Never use flammable gases, as they will ignite and may result in an explosion or fire that can

cause death or injury.

2. Do not attempt to mix gases or refill a gas cylinder. Exchange a cylinder or have it refilled by a

professional service.

3. Do not deface or alter the name, number or other markings on a cylinder. Do not rely on a

cylinder’s colour to identify the contents. Do not connect a regulator to a cylinder that contains

a gas that the regulator was not designed to handle.

4. Do not expose a cylinder to excessive heat, sparks, slag, flame or any other heat source.

4.1 A cylinder exposed to temperatures above 130 °F will require water spray cooling. This

method may not be compatible with electric welding units due to the hazard of

electrocution.

8958696 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER V1.2

8 For technical questions call 1-800-665-8685

5. Do not expose a cylinder to electricity of any kind.

6. Do not attempt to lubricate a regulator. Always change a cylinder carefully to prevent leaks

and damage to the cylinder’s walls, valve or safety devices.

7. Gases in the cylinder are under pressure. Protect the cylinder from bumps, falls, falling

objects and harsh weather. A punctured cylinder under pressure can become a lethal

projectile. If a cylinder is punctured, do not approach until all pressure is released.

7.1 Protect the valve and regulator. Damage to either can result in regulator’s explosive

ejection from the cylinder.

8. Always secure a gas cylinder in a vertical position to a welding cart or other fixed support

with a steel chain, so it cannot be knocked over.

8.1 Away from areas where they may be struck or subjected to physical damage.

8.2 A safe distance from welding or cutting operations and any other source of heat, sparks

or flame.

8.3 Do not use as an improvised support or roller.

9. Always place the cylinder cap securely on the cylinder unless it is in use or being serviced.

10. Do not use a wrench or hammer to open a cylinder valve that cannot be opened by hand.

Notify your supplier for instructions.

11. Do not modify or exchange gas cylinder fittings.

12. Close the cylinder valve and immediately remove the faulty regulator from service for

repair, if any of the following conditions exist:

12.1 Gas leaks externally.

12.2 Delivery pressure continues to rise with the downstream valve closed.

12.3 The gauge pointer does not move off the stop pin when pressurized or fails to return

to the stop pin after pressure is released.

13. Do not attempt to make regulator repairs. Send faulty regulators to the manufacturer's

designated repair centre.

14. Do not weld on the gas cylinder.

15. Keep your head and face away from the cylinder valve outlet when opening the

cylinder valve.

16. Compressed gas cylinders must not be located in a confined space with the person welding

to prevent the possibility of leaks displacing the oxygen.

ELECTRICAL SAFETY

1. Do not come into physical contact with the welding current circuit. The welding current

circuit includes:

1.1 The workpiece or any conductive material in contact with it.

1.2 The ground clamp.

1.3 The welding wire.

1.4 Any metal parts on the welding torch.

1.5 The output terminals.

2. Insulate yourself from the electrical current and ground using electrical insulating mats or

covers big enough to prevent physical contact with the workpiece or ground.

3. Connect the ground clamp as close to the welding area on the workpiece as practical to

prevent welding current from traveling along an unexpected path and causing an electric

shock or fire hazard.

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3.1 An option is to attach the ground clamp to a bare metal spot on a metal workbench.

The circuit will complete as long as the workpiece is also in full contact with the bare

metal workbench.

4. Do not weld on damp surfaces that can transmit the electric current without taking

precautions for the welder and bystanders. The welding wire, welding head and nozzle are

electrically ‘hot’.

5. Only use insulated connectors to join welding cables.

6. Ensure there are no contacts between the workpiece and work area that would allow it to

ground, other than through the ground cable circuit

7. Do not exceed the duty cycle or amperage required for the type of welding. Excessive

amperage can cause the deterioration of protective insulation and create a shock hazard.

8. Unplug the welding unit when not in use as the unit as current is still entering the unit, even

when it is turned off.

9. Frequently inspect input power cable for wear and tear, replace the cable immediately if

damaged. Bare wiring is dangerous and can kill.

10. Do not use damaged, under sized or badly joined cables.

11. Do not disconnect the power cord in place of using the ON/OFF switch on the tool. This will

prevent an accidental startup when the power cord is plugged into the power supply.

11.1 In the event of a power failure, turn off the machine as soon as the power is interrupted.

The possibility of accidental injury could occur, if the power returns and the unit is not

switched off.

12. Make certain the power source conforms to requirements of your equipment (see

Specifications).

POWER TOOL PRECAUTIONS

This equipment requires a dedicated 120 volt, 20 amp single-phase alternating current circuit

equipped with a similarly rated circuit breaker or slow blow fuse. Do not run other appliances,

lights, tools or equipment on the circuit while operating this welding unit.

1. Do not drape or carry coiled welding cables on your body when the cables are plugged into

the welding unit.

2. Do not start the tool when the welding wire is touching the workpiece.

3. Hold the tool by the insulated gripping surfaces when performing an operation where it

may contact hidden wiring or its own cord and cables. Contact with a ‘live’ wire will

electrify exposed metal parts and shock the operator.

4. Take work breaks to prevent the tool's motor from overheating and/or overloading. Refer to

the welding unit’s duty cycle in Specifications.

5. Keep hands away from the welding wire and the area it is being applied to when the tool is

in operation.

6. Do not connect the welding unit ground clamp to an electrical conduit. Do not weld on an

electrical conduit.

7. Do not touch the welding wire or welded surface immediately after use. The surface will be

hot and may cause an injury.

8. Never use a tool with a cracked or worn welding wire. Change the welding wire before

using and discard the damaged one.

POWER CORD

Insert the power cord plug directly to the power supply whenever possible. Extension cords are

not recommended for use with this welding unit.

8958696 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER V1.2

10 For technical questions call 1-800-665-8685

ELECTROMAGNETIC FIELDS

WARNING! Stop welding immediately and move away from the welding unit if you feel faint,

dizzy, nausea or shocks. Seek medical attention.

Electromagnetic Fields (EMF) can interfere with electronic devices such as pacemakers.

Anyone with a pacemaker should consult with their doctor before working with or near a

welding unit. The following steps can minimize the effects of electromagnetic fields.

1. Twist or tape cables together and prevent coils.

2. Do not drape cables on your body.

3. Keep the welding power source and cables as far away from the user as practical. A

minimum of 24 in. is recommended.

4. Connect the workpiece clamp as close to the weld as possible, but lay the welding wire and

workpiece cables away from the user.

5. Use the lowest current setting possible during welding.

6. Avoid long and regular bursts of energy while welding. Apply the welding wire in short

strokes and intermittently. This will prevent the pacemaker from interpreting the signal as a

rapid heartbeat.

7. Do not allow the welding wire to touch the metal while welding.

8. Wrap the lead cable and ground cable together whenever possible.

9. Keep the lead cable and ground cables on the same side of your body.

UNPACKING

WARNING! Do not operate the tool if any part is missing. Replace the missing part before

operating. Failure to do so could result in a malfunction and personal injury.

Remove the parts and accessories from the packaging and inspect for damage. Make sure that

all items in the parts list are included.

Contents: • Gasless MIG Welder • Ground Lead • MIG Torc h • Regulator

• Role of Flux core Wire 0.030 in.

IDENTIFICATION KEY

A Wire Size Selector

B Synergic Control Knob

C Positive Outlet Socket (+)

D Negative Outlet Socket (-)

E Welding Torch Cable

F Weld Power Lead

G Input Power Cable

H Fan

I Power Switch

J Gas Inlet

K Ground Clamp cable (not shown)

Fig. 1

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ASSEMBLY & INSTALLATION

Letter references in parenthesis (A) refer to the included Identification Key. Dashed numbers in

parenthesis (Fig. 1-1) refer to specific point of an illustration or image

1. Connecting the cables:

1.1 Connect the ground cable (K) into the negative outlet socket (D) when using gas or a

shielded wire.

1.2 Connect the ground cable (K) to the positive outlet socket (C)

for gasless wire.

2. Connect the power cable (F) to the opposite outlet socket.

3. Fit the gas line onto the gas inlet (J) barb. Secure with a hose clamp if

necessary.

4. Connect the gas regulator (Fig. 2) to the gas cylinder or compressor.

5. Connect the other end of the gas line to the regulator’s barbed gas outlet.

6. Install the welding wire if needed (See Wire Installation and Setup).

7. Open the valve on the gas cylinder and set the flow to 0.35 CFM (8-10 L/min).

CHECK FOR GAS LEAKAGE

Check for gas leakage after each time the welding unit is set up and at regular intervals.

The recommended procedure is as follows:

1. Connect the regulator and gas hose assembly, then tighten all connectors and clamps.

2. Slowly open the cylinder valve.

3. Set the flow rate on the regulator to approximately 0.35 CFM (8 to 10 L/min).

4. Close the cylinder valve and pay attention to the needle indicator on the regulator’s

pressure gauge. If the needle drops away towards zero there is a gas leak.

Sometimes a gas leak can be slow and to identify. Leave the gas pressure in the regulator

and line for an extended time period. Perform the test as above. Close the cylinder valve

and check after a minimum of 15 minutes.

5. After confirming there is a loss of gas, check all connectors and clamps for leakage by

brushing or spraying with soapy water. Bubbles will appear at the leakage point.

6. Tighten clamps or fittings to eliminate gas leakage. Replace the clamps and fittings if this

fails to solve the problem.

WIRE INSTALLATION AND SET UP

The correct installation of the wire spool and the wire into the wire feed unit is critical to

achieving an even and consistent wire feed. Poor set up of the wire into the wire feeder is a

major cause of fault with MIG welding machines. The guide below will assist in the correct setup

of your wire feeder.

1. Open the welding unit’s top cover (Fig. 3).

2. Remove the spool retaining nut (Fig. 4). The spool

retaining nut is left-hand threaded.

3. Note the tension spring adjuster and spool locating pin

(Fig. 5).

4. Fit the wire spool onto the spool holder. Fit the locating

pin into the location hole on the spool. Reinstall the spool

retaining nut tightly (Fig. 6).

Fig. 2

Fig. 3

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5. Choose a drive roller based on the thickness of the welding wire. Twist the retainer knob

and flip the cap up (Fig. 7). Place the roller onto the spindle with the correct wire size on

top. Flip the cap down and twist to lock in place.

5.1 Flux-Core – Install a knurled drive roller. Apply a light amount of pressure to the drive roller.

Too much pressure will crush the cored wire.

6. Loosen the tension knob and swing it up and out of the way (Fig. 8). Swing the pressure

roller arm out of the way as well.

7. Snip the wire carefully, be sure to hold the wire to prevent the spool uncoiling. Carefully

feed the wire into the inlet guide tube of the wire feed unit (Fig. 8).

8. Feed the wire through the drive roller and into the outlet guide tube of the wire feeder.

9. Swing the pressure arm into place against the roller and lock it into place with the tension

arm. Tighten the knob to apply a medium amount of pressure (Fig. 9).

10. Remove the gas nozzle and contact tip from the torch neck (Fig. 10)

11. Press and hold the welding torch trigger to feed the wire through to the torch neck. Release

the trigger when the wire exits the torch neck.

12. Fit the correct sized contact tip and feed the wire through it, screw the contact tip into the

tip holder of the torch head. Clip the wire close to the tip unless testing the drive tension.

13. Fit the gas nozzle to the torch head (Fig. 10).

14. A simple check for the correct drive tension is

to bend the end of the wire over hold it about

4 in. from your hand and let it run into your

hand, it should coil round in your hand

without stopping and slipping at the drive

rollers, increase the tension if it slips (Fig. 11).

15. Insufficient tension on the wire spool can

allow it to spin after the wire feeding

mechanism stops, forcing loops of wire off

the spool to become tangled. Increase the

pressure on the tension spring inside the

spool holder assembly by adjusting the tension screw if this happens (Fig. 6).

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Fig. 11

V1.2 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER 8958696

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OPERATION

FEATURES

THERMAL OVERLOAD PROTECTION

Constantly exceeding the duty cycle can damage the cutting unit. An internal thermal protector

will open when the duty cycle is exceeded, shutting OFF all cutting unit functions except the

cooling fan. Leave the cutting unit turned ON with the fan running. The thermal protector will

automatically reset and the cutting unit will function normally again once it has cooled.

Wait at least another 10 minutes after the thermal protector opens before resuming cutting.

Starting before this additional time may result in a shortened duty cycle.

OVER-VOLTAGE

This equipment has an automatic voltage compensation function, which enables the unit to

maintain the voltage within the given range. In case that the input voltage or amperage exceeds

the stipulated value, it is possible to damage the equipment’s components. Please ensure your

primary power supply is correct (see Specifications).

OPERATING THE WELDING UNIT

1. Switch the wire size selector (A) to match the wire diameter installed.

2. Turn the synergic control knob (B) to select the power. The higher the number, the more

power is applied to the weld.

3. Turn the gas on at the cylinder, unless you are using flux cored wire.

4. Turn the power on with the power switch (I).

5. Squeeze the welding torch trigger to start welding. The welding unit will automatically

control the wire speed.

6. Adjust the wire speed and power with the synergic control knob.

7. Release the trigger when the weld is complete.

MIG (METAL INERT GAS) WELDING

MIG (metal inert gas) welding, also

known as GMAW (gas metal arc welding)

or MAG (metal active gas welding), is a

semi-automatic or automatic welding

process in which a continuous and

consumable wire welding wire and a

shielding gas are fed through a welding

torch. A constant voltage, direct current

power source is most commonly used

with MIG welding.

SHORT-CIRCUIT TRANSFER

Short-circuit transfer is the most common used method. The wire welding wire is fed

continuously down the welding torch until it exits from the contact tip. The wire touches the

workpiece and causes a short-circuit. The wire heats up and begins to form a molten bead, the

bead separates from the end of the wire and forms a droplet that is transferred into the weld

pool. This process is repeated about 100 times per second, making the arc appear constant to

the human eye.

1. The wire approaches the workpiece and touches the work creating a short-circuit between

the wire and the base metal, because there is no space between the wire and the base

metal there is no arc and current flows through the wire (Fig. 13)

Fig. 12

8958696 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER V1.2

14 For technical questions call 1-800-665-8685

2. The wire cannot support

all the current flow;

resistance builds up and

the wire becomes hot and

weak and begins to melt

(Fig. 14)

3. The current flow creates a

magnetic field that begins

to pinch the melting wire

forming it into droplet

(Fig. 15).

4. The pinch causes the

forming droplet to

separate and fall to-wards

the now creating weld

pool (Fig. 16).

5. An arc is created at the

separation of the droplet

and the heat and force of

the arc flattens out the

droplet into the weld pool. The heat of the arc melts the end of the wire slightly as it feeds

towards the base metal (Fig. 17).

6. The wire feed speed overcomes the heat of the arc and the wire again approaches the work

to short-circuit and repeat the cycle (Fig. 18).

BASIC MIG WELDING GUIDE

Good weld quality and weld profile depends on the gun angle, direction of travel, welding wire

extension (stick out), travel speed, thickness of base metal, wire feed speed (amperage) and arc

voltage. To follow are some basic guides to assist with your setup.

GUN POSITION - TRAVEL DIRECTION, WORK ANGLE

Gun position or technique usually refers to how the wire is directed at the base metal, the angle

and travel direction chosen. Travel speed and work angle will determine the characteristic of the

weld bead profile and degree of weld penetration.

PUSH TECHNIQUE

The wire is located at the leading edge of the weld pool and pushed towards the un-melted

work surface. This technique offers a better view of the

weld joint and direction of the wire into the weld joint.

Push technique directs the heat away from the weld

puddle allowing faster travel speeds providing a flatter

weld profile with light penetration - useful for welding

thin materials. The welds are wider and flatter allowing for

minimal clean up / grinding time (Fig. 19).

PERPENDICULAR TECHNIQUE

The wire is fed directly into the weld, this technique is

used primarily for automated situations or when

conditions make it necessary. The weld profile is generally

higher and a deeper penetration is achieved (Fig. 20).

DRAG TECHNIQUE

The gun and wire are dragged away from the weld bead. The arc and heat are concentrated on the

weld pool, the base metal receives more heat, deeper melting, more penetration and the weld

profile is higher with more build up (Fig. 21)

Fig. 13

Fig. 14

Fig. 15

Fig. 16

Fig. 17

Fig. 18

Fig. 21

Fig. 19

Fig. 20

V1.2 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER 8958696

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TRAVEL ANGLE

Travel angle is the right to left

angle relative to the direction

of welding. A travel angle of 5°

to 15° is ideal and produces a

good level of control over the

weld pool. A travel angle

greater that 20° will give an

unstable arc condition with

poor weld metal transfer, less

penetration, high levels of spatter, poor gas shield and poor-quality finished weld (Fig. 22)

ANGLE TO WORK

The work angle is the forward or

back angle of the gun relative to

the workpiece.

The correct work angle provides

good bead shape, prevents

undercut, uneven penetration,

poor gas shield and poor-quality

finished weld (Fig. 23).

STICK OUT

Stick out is the length of the unbelted wire protruding from the end of the contact tip.

A constant even stick out of 1/8 to 1/4 in. (Fig. 24) will produce a stable arc and an even current

flow providing good penetration and even fusion (Fig. 25). A stick out that is too short will cause an

unstable weld pool, produce

spatter and overheat the

contact tip (Fig. 26). A stick

out too long will cause an

unstable arc, lack of

penetration, lack of fusion and

increase spatter (Fig. 27).

TRAVEL SPEED

Travel speed is the rate that the gun is moved along the weld joint and is usually measured in mm

per minute. Travel speeds can vary depending on conditions and the welder’s skill and is limited to

the welder’s ability to control the weld pool. Push technique allows faster travel speeds than Drag

technique. Gas flow must also correspond with the travel speed, increasing with faster travel speed

and decreasing with slower speed. Travel speed needs to match the amperage and will decrease as

the material thickness and amperage increase.

TOO FAST TRAVEL SPEED

A too fast travel speed produces too little heat per inch of

travel resulting in less penetration and reduced weld fusion, the

weld bead solidifies very quickly trapping gases inside the weld

metal causing porosity. Undercutting of the base metal can also

occur and an unfilled groove in the base metal is created when

the travel speed is too fast to allow molten metal to flow into

the weld crater created by the arc heat (Fig. 28).

TOO SLOW TRAVEL SPEED

A too slow travel speed produces a large weld with lack of

penetration and fusion. The energy from the arc dwells on top of

the weld pool rather than penetrating the base metal. This

produces a wider weld bead with more deposited weld metal

per mm than is required resulting in a weld deposit of poor

quality (Fig. 29).

Fig. 22

Angle 5° to 15°

Not Enough Angle

Angle more than 20°

Fig. 23

Correct Angle

Not Enough Angle

Too Much Angle

Fig. 24

Fig. 25

Fig. 26

Fig. 27

Fig. 28

Fig. 29

8958696 PRO.POINT 105I MIG GAS/FLUX-CORED WELDER V1.2

16 For technical questions call 1-800-665-8685

CORRECT TRAVEL SPEED

The correct travel speed keeps the arc at the leading edge of

the weld pool allowing the base metal to melt sufficiently to

create good penetration, fusion and wetting out of the weld

pool, producing a weld deposit of good quality (Fig. 30).

WIRE TYPES AND SIZES

Use the correct wire type for the base

metal being welded. Use stainless steel

wire for stainless steel and steel wires for

steel.

Use a smaller diameter wire for thin base

metals. For thicker materials use a larger

wire diameter and larger machine, check

the recommended welding capability of

your machine.

As a guide refer to the Welding Wire

Thickness Chart in Table 3.

GAS SELECTION

The purpose of the gas in the MIG process is to protect/shield the wire, the arc and the

molten weld metal from the atmosphere. Most metals when heated to a molten state will react with

the air. Without the protection of the shielding gas, the weld produced would contain defects like

porosity, lack of fusion and slag inclusions. Some of the gas becomes ionized (electrically charged)

and helps the current flow smoothly.

The correct gas flow is also very important in protecting the welding zone from the atmosphere. Too

low of a flow will give inadequate coverage and result in weld defects and unstable arc conditions.

Too high of a flow can cause air to be drawn into the gas column and contaminate the weld zone.

USE THE CORRECT SHIELDING GAS

Co2 is good for steel and offers good penetration characteristics,

the weld profile is narrower and slightly raised than the weld profile

obtained from an Argon/Co2 mixed gas. Argon/Co2 mix gas offers

better weld ability for thin metals and has a wider range of setting

tolerance on the machine. Argon 75%/Co2 25% is a good all round

mix suitable for most applications (Fig. 31)

CARE & MAINTENANCE

1. Maintain the tool with care. A tool in good condition is efficient, easier to control and will

have fewer problems.

2. Inspect the tool fittings, alignment, hoses and power supply cord periodically. Have damaged

or worn components repaired or replaced by an authorized technician. Only use identical

replacement parts when servicing.

3. Exposure to extremely dusty, damp, or corrosive air is damaging to the welding unit. In

order to prevent possible failure or fault of this welding equipment, clean the dust at regular

intervals with clean and dry compressed air.

4. Follow instructions for lubricating and changing accessories.

5. Only use accessories intended for use with this tool.

6. Keep the tool handles clean, dry and free from oil/grease at all times.

7. Maintain the tool’s labels and name plates. These carry important information. If unreadable

or missing, contact Princess Auto Ltd. for replacements.

WARNING! Only qualified service personnel should repair the tool. An improperly repaired

tool may present a hazard to the user and/or others.

WELDING WIRE THICKNESS CHART

RECOMMENDED WIRE DIAMETERS

MATERIAL

THICKNESS

MIG SOLID WIRE

GASLESS FLUX-

CORED WIRE

0.023 in.

0.030 in.

0.035 in.

0.30 in.

0.035 in.

24 Gauge (.60 mm)

22 Gauge (.75 mm)

20 Gauge (.90 mm)

18 Gauge (1.0 mm)

16 Gauge (1.2 mm)

14 Gauge (1.9 mm)

0.118 in. / 3 mm

0.196 in. / 5 mm

Table 3

Fig. 31

Fig. 30

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DISPOSAL

Recycle a tool damaged beyond repair at the appropriate facility.

Contact your local municipality for a list of disposal facilities or by-laws for electronic devices,

batteries, oil or other toxic liquids.

TROUBLESHOOTING

Visit a Princess Auto Ltd. location for a solution if the tool does not function properly or parts

are missing. If unable to do so, have a qualified technician service the tool.

MIG WELDING

PROBLEM(S)

POSSIBLE CAUSE(S)

PROPOINT 8958696 Le manuel du propriétaire

Marque: PROPOINT

Modèle: 8958696

Catégorie: Système de soudage

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