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3. The LAP SPOT METHOD directs the welding arc to penetrate the bottom and top pieces, at the same time, right

along each side of the lap joint seam. Select the wire diameter, heat setting, and tune in the wire speed as if you

were welding the same thickness material with a continuous bead.

6.6 SPOT WELDING INSTRUCTIONS

1. Select the wire diameter and heat setting recommended above for the method of spot welding you intend to use.

2. Tune in the wire speed as if you were going to make a continuous weld.

3. Hold the nozzle piece completely perpendicular to and about 1/4 inch off the work piece.

4. Pull the trigger on the torch and release it when it appears that the desired penetration has been made.

5. Make practice spot welds on scrap metal, varying the length of time you hold the trigger, until a desired spot

weld is made.

6. Make spot welds on the actual work piece at desired locations.

Maintenance

The welder needs the regular maintenance as following:

Periodically clean dust, dirt, grease, etc. from your welder. Every six months, or as necessary, remove the cover

panel from the welder and air-blow any dust and dirt that may have accumulated inside the welder.

TROUBLESHOOTING

Содержание HIT140

Страница 1: ...serve the right to change this product at any time without prior notice IF THERE IS ANY QUESTION ABOUT A CONDITION BEING SAFE OR UNSAFE DO NOT OPERATE THIS PRODUCT HAVE QUESTIONS OR PROBLEMS CONTACT CUSTOMER SERVICE If you experience a problem or need parts for this product visit our website http www buffalotools com or call our customer help line at 1 636 532 9888 Monday Friday 8 AM 4 PM Central ...

Страница 2: ... This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury...

Страница 3: ...n of exhaust gas from welding l Keep the working environment in good ventilation use exhaust or ventilation equipment when welding Arc radiation may damage eyes or burn skin l Wear suitable cutting masks and protective clothing to protect your eyes and body l Use suitable masks or screens to protect spectators from harm Improper operation may cause fire or explosion l Welding sparks may result in ...

Страница 4: ...re dia INCH Suitable electrode size INCH MIG 030 035 MMA 1 6 2 0MM 1 16 5 64 Insulation class F Protection class IP21S Suggested Wire Solid and Flux Cored Wire Use with Gas or Without Shielding Gas Welds Carbon Steel Between 1 2mm 3 0mm Overload Thermal Protection Includes Welding Cable Electrode Holder MIG Torch Grounding Cable Earth Clamp Wire Spool Clipping Hammer Brush Welding Face Shield Weld...

Страница 5: ...5 Assembly B FOR GASLESS WELDING ...

Страница 6: ...6 C FOR GAS WELDING D FOR MMA WELDING ...

Страница 7: ...r is required DO NOT OPERATE THIS UNIT if the ACTUAL power source voltage is less than 105 volts AC or greater than 132 volts AC High voltage danger from power source Consult a qualified electrician for proper installation of receptacle This welder must be grounded while in use to protect the operator from electrical shock Do not remove grounding prong or alter the plug in any way Do not use any a...

Страница 8: ...nsion Arm see 2 Pull the drive tension arm away from the wire roller 3 3 If there is wire already installed in the welder roll it back onto the wire spool by hand turning the spool counterclockwise Be careful not to allow the wire to come out of the rear end of the inlet guide tube without holding onto it or it will unspool itself Put the end of the wire into the hole on the outside edge of the wi...

Страница 9: ... 4 Install the wire 4 1 Selecting the wire Available wire for this machine Wire Type Available MIG wire 023 inch Yes MIG wire 030 inch Yes Flux core wire 030 inch Yes Flux core wire 035 inch Yes MIG wires available are mild steel stainless steel or aluminum solid wire and must be used with shielding gas Four inch spools are available NOTE Burn through will occur if you attempt to weld mild or stai...

Страница 10: ...OOK IT AT THIS TIME 4 2 4 Place the spool on the spool hub with the wire coming off the bottom of the spool The bottom of the spool aligns with inlet to the drive system for smooth flow of the wire See following figure 4 2 5 The welder can use 4 inch spools only The wing nut controls the tension on the spool 4 2 6 Setting the wire spool tension a Turn the spool of wire with one hand b Increase the...

Страница 11: ...til the tension roller is applying enough force on the wire to prevent it from slipping out of the drive assembly Do not over tighten 4 2 14 NOW YOU CAN LET GO OF THE WIRE 4 2 15 Plug in and turn the welder ON Set the VOLTAGE switch to the voltage heat setting recommended for the gauge metal that is to be welded Refer to the set up chart on the inside of the wire feed compartment door 4 2 16 Set t...

Страница 12: ... until the wire seems to feed smoothly without slipping 6 Gas installation Shielding gas cylinders and high pressure cylinders can explode if damaged so treat them carefully Never expose cylinders to high heat sparks open flames mechanical shocks or arcs Do not touch cylinder with MIG gun Do not weld on the cylinder Always secure cylinder upright to a cart or stationary object Keep cylinders away ...

Страница 13: ...FM To reduce the gas flow turn the adjustment counterclockwise The gas solenoid valve is on the back panel of the welder Gas flow can be heard at the end of the gun when the trigger is activated No gas flow will result in a harsh arc with excessive spatter a smooth weld bead will not be obtained 3 Gas Selection Different materials require different shielding gas when MIG welding refer to the set u...

Страница 14: ... to the welder One knob controls the wire feed output current and output voltage 2 Hold the MIG gun The best way to hold the MIG gun is the way that feels most comfortable to you While practicing to use your new welder experiment holding the torch in different positions until you find the one that seems to work best for you 3 Position the MIG gun to the work piece There are two angles of the MIG g...

Страница 15: ... similar to that which will be used when welding See HOLDING THE TORCH if you are uncertain of the angle at which you will be welding 5 3 With your free hand turn the Wire Speed Dial to maximum and continue to hold onto the knob 5 4 Lower your welding helmet and pull the trigger on the torch to start an arc then begin to drag the torch toward you while simultaneously turning the Wire Speed Dial co...

Страница 16: ...el speed is the rate at which the torch is being pushed or pulled along the weld joint For a fixed heat setting the faster the travel speed the lower the penetration and the lower and narrower the finished weld bead Likewise the slower the travel speed the deeper the penetration and the higher and wider the finished weld bead 6 2 Types of welding beads As you become more familiar with your new wel...

Страница 17: ...rovide better puddle control OVERHEAD POSITION Is the most difficult welding position Angle A see HOLDING THE TORCH should be maintained at 60 degrees Maintaining this angle will reduce the chances of molten metal falling into the nozzle Angle B should be held at zero degrees so that the wire is aiming directly into the weld joint If you experience excessive dripping of the weld puddle select a lo...

Страница 18: ... through method larger wire diameters tend to work better than smaller diameters Wire diameters that tend to work best with the burn through method are 035 inch self shielding flux core wire Do not use 030 inch self shielding flux core wires when using the burn through method unless the metal is VERY thin or excessive filler metal build up and minimal penetration is acceptable Always select the HI...

Страница 19: ... continuous weld 3 Hold the nozzle piece completely perpendicular to and about 1 4 inch off the work piece 4 Pull the trigger on the torch and release it when it appears that the desired penetration has been made 5 Make practice spot welds on scrap metal varying the length of time you hold the trigger until a desired spot weld is made 6 Make spot welds on the actual work piece at desired locations...

Страница 20: ...e board 3 Whatever the wire feeder if working there s no wire coming from the MIG torch even push the button of MIG torch First check the trigger of MIG torch if trigger has a problem please change a new one If not OK then check if the Electric board is broken change board 4 The machine is not working OC light is on power is on fan is working Wait a few minutes the machine may be over heated Allow...

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