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Hong Kong Easyweld Limited EasyMig 250i, Instruction Manual, Page: 8 / 21

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Hong Kong Easyweld Limited EasyMig 250i Instruction Manual Download Page 8

 

 

8 

MAIN PARAMETER 

Model 

EasyMig 250i 

Input Voltage(V) 

220 Single 

Phase 

Frequency(Hz) 

50/60Hz 

Rated Input Capacity(KVA) 

8.3 

Rated Input Current(A) 

37.7 

Output Current Range(A) 

50~250 

Output Voltage Range(V) 

16.5~26.5 

Outlet Voltage for 
Regulator(V) 

220 

Adjustable Steps 

7/10 

Wire Diameter(mm) 

0.6~1.0 

Duty Cycle(%)   

60 

Efficiency(%) 

85 

Power Factor 

0.93 

Insulation Class 

F 

Wire Feeder Type 

Compact 

Wire Feeding Speed(m/min) 

2~15 

Diameter of Spool(mm) 

270 

Dimension(mm) 

490 x 265 x 420 

Weight(Kg) 

25 

 

 

ASSEMBLING THE WELDER 

 
The following steps describe the assembly, installation, maintenance and operations of your 
new welder. 
1. Unpack the welder. 
2. Install handle. 

CAUTION Avoid contacts with wires or parts. 

DO NOT

 work with the side panels partially 

opened or removed completely from the power source. 

3. Place the power source in a well ventilated area. 

DO NOT

 obstruct the air intake and output 

vents. A reduced air flow can cause a reduced duty cycle and damage internal components. 

4. Insure at least 6 feet of open space on each side of the welder. 

 
 
 

Summary of Contents for EasyMig 250i

Page 1: ...1 EasyMig EasyMig MIG Welding System Instruction Manual EasyMig 250i EFFECTIVE October 2009 IMPORTANT Safety and Operating Instructions For Your Safety PLEASE READ CAREFULLY Hong Kong EasyWeld Limited ...

Page 2: ...2 CONTENTS Instruction 3 General Welding Safety Instruction 3 Main Parameter 8 Installation 8 Operation 13 Speed Read Table 15 Maintenance 17 Daily Check 18 Troubleshooting 20 ...

Page 3: ...ions are not known and or are not followed This safety information gives you the necessary information for safe use and operation Items in this manual that significantly affect safety are identified with the following headings Please read and understand this manual Pay special attention to items identified with these headings WARNING Means there is a possibility of injury or death to yourself or o...

Page 4: ...nection with the single phase line The yellow green wire is for the compulsory connection to the ground in the welding area 4 When working in a confined space keep the power source outside the welding area and fix the ground cable to the work piece NEVER work in a damp or wet area 5 DO NOT use damaged input or welding cables 6 NEVER operate the power source without its panels in place This could c...

Page 5: ... the power source in place after performing maintenance SAFETY WARNINGS Please familiarize yourself with the warning message listed on this manual Please be alert be alert to the possibility of personal injury and carefully read the message that follows ELECTRIC SHOCK CAN KILL Reduce the risk of death or serious injury from shock Read understand and follow the following safety instructions Additio...

Page 6: ...OT use damaged cylinders 8 Make sure that the cylinder is safely secured tightly to the welder with the chain provided 9 DO NOT carry the cylinder by holding it by the valve 10 NEVER expose cylinders to excessive heat sparks slag or flame 11 Make sure that the gas hose is ALWAYS in good condition 12 Keep the gas hose away from the working area HEALTH HAZARDS The welding process can be hazardous to...

Page 7: ...er until the fault is found and resolved WELDER OPERATING CHARACTERISTICS The duty rating defines how long the user can weld and how long the welder must rest and cool down Duty Cycle ratings are expressed as a percentage of a ten minute period It represents the maximum welding time allowed at the specified amperage setting The remaining balance of a ten minute period is required for cooling off t...

Page 8: ...5 Diameter of Spool mm 270 Dimension mm 490 x 265 x 420 Weight Kg 25 ASSEMBLING THE WELDER The following steps describe the assembly installation maintenance and operations of your new welder 1 Unpack the welder 2 Install handle CAUTION Avoid contacts with wires or parts DO NOT work with the side panels partially opened or removed completely from the power source 3 Place the power source in a well...

Page 9: ... Wire Spool Holder Torch Connection Welding Current Knob Ground Cable Power Switch Digital Ampere Metre Gas Hose Inlet 220 Voltage Outlet Overheat Lamp Power Cable Inlet Power Lamp Wire Inching Button Welding Inductance Knob Digital Voltage Metre Handle Welding Voltage Knob ...

Page 10: ...ION OF THE WELDING WIRE Install the wire into the feeding system by following the instructions below and referring to following steps WARNING Remove the contact tip and gun nozzle from the MIG gun before starting this procedure 1 Loosen the nut of the spool holder brake drum Remove the spring and the external ring 2 Remove the plastic wrapper from the spool Place the spool on the spool holder Moun...

Page 11: ... cable is correctly set For MIG GMAW welding the ground cable must be connected to the negative terminal while the MIG gun must be connected to the positive terminal Default setting 3 Connect the work cable and clamp to the work piece Make sure there is a good contact 4 Make sure the wire feeding roll is correctly positioned groove matching the wire diameter Note that each roll has two grooves one...

Page 12: ...work piece is connected to the other pole When the wire is fed and touches the work piece an electric arc is produced The arc melts the wire that is deposited on the work piece MIG welding uses a steel coppered wire as an electrode and an inert gas CO2 Argon mix or pure Argon for protection of the weld pool The wire can be one of three types 1 Solid wire ALWAYS used with a protective gas 2 Cored w...

Page 13: ...r lower thickness and higher settings for higher thickness 2 Adjust the welding current wire speed adjusted simultaneously Start using a trial metal sheet Connection thoroughly cleaned of layers of rust or paint Connect the ground cable to the work piece Adjust the wire speed at the high setting Press the torch switch NOTICE Start welding squeezing the torch switch and decrease the wire speed grad...

Page 14: ...e Thin wire CO2 welding Thick wire CO2 welding Thick wire big current CO2 welding CO2 L min 5 15 15 25 25 50 The Option of the Power Supplies Poles Generally DC Negative connection is ideal for CO2 welding For AC positive connection please refer the following figure Application characteristic of different pole connection Power connection Application Characteristic Negative connection The wire to C...

Page 15: ... 5 50 60 10 1 0 0 0 8 0 9 75 85 17 17 5 50 60 10 15 1 2 0 1 0 70 80 17 18 45 55 10 1 6 0 1 0 80 100 18 19 45 55 10 15 2 0 0 0 5 1 0 100 110 19 20 40 55 10 15 2 3 0 5 1 0 1 0 or 1 2 110 130 19 20 50 55 10 15 3 2 1 0 1 2 1 0 or 1 2 130 150 19 21 40 50 10 15 4 5 1 2 1 5 1 2 150 170 21 23 40 50 10 15 Parameter for Flat Fillet Welding Please refer to the following figure Plate Thickness t mm Corn size ...

Page 16: ... 140 19 21 50 60 10 20 3 2 3 0 4 0 1 0 1 2 130 170 22 22 45 55 10 20 4 5 4 0 4 5 1 2 200 250 23 26 45 55 10 20 Parameter for Lap Welding Please refer to the following figure Plate Thickness t mm Welding Position Wire Ø mm Welding current A Welding voltage V Welding speed cm mm Gas volume L min 0 8 A O 8 0 9 60 70 16 17 40 45 10 15 1 2 A 1 0 80 100 18 19 45 55 10 15 1 6 A 1 0 1 2 100 20 18 20 45 55...

Page 17: ...tandard Wi 17 2 CODE FOR SAFETY IN WELDING AND CUTTING obtainable from Canadian Standards Association 178 Rexdale Blvd Rexdale Ontario Canada M9W 1R3 American Welding Society Standard A6 0 WELDING AND CUTTING CONTAINERS WHICH HAVE HELD COMBUSTIBLES obtainable from the American Welding Society 2051 N W 7th St Miami FL 33125 305 443 9353 MAINTENANCE 1 Disconnect input plug or power before maintain o...

Page 18: ...h on the power source and check whether that abnormal vibration heating of the case of this equipment variation of colors of case and buzz present Other Parts Make sure that gas connection is available 2 Welding Torch Part Check Remarks Nozzle 1 Make certain the nozzle is fixed 2 Check whether there is spatter sticking on the nozzle 1 Possible gas leakage occurs due to the unfixed nozzle 2 Spatter...

Page 19: ...at the diffuser of required specification is installed and is unblocked 1 Defection weld or even the damage of torch occurs due to the non installation of diffuser or the unqualified diffuser 3 Wire Feed Unit Part Check Remarks Pressure adjusting handle 1 Whether the pressure adjusting handle is fixed The unfixed pressure adjusting handle leads to the unstable weld output Wire feeding hose 1 Where...

Page 20: ...fixed and not short circuited 1 Relevant measures should be taken to prevent the possible electricity leakage TROUBLESHOOTING INFORMATION Problem Possible Cause Remedy Dirty porous or brittle weld Plugged welding nozzle Clean or replace welding nozzle Arc works but is not feeding wire Faulty wire speed control assembly No tension on the drive roller Faulty drive motor very rare Replace wire speed ...

Page 21: ...on drive roller Gun liner worn or damaged Contact tip is clogged or damaged Liner is stretched or is too long Adjust the drive tension Replace gun liner Replace contact tip Trim liner to proper length Wire burns back to contact tip Gun liner is worn or damage Wrong Size contact tip Contact tip clogged or damaged Liner is stretched or is too long Replace gun liner Use correct size contact tip Repla...

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