Ronch 250MIG User Manual Download Page 3 | Manualshive

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4.2.

Welding operation

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4.2.1.

Voltage Setting

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4.2.2.

Wire speed setting

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4.3.

Welding parameters

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4.4.

Operation environment

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18

4.5.

Operation Notices

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19

5.

MAINTENANCE & TROUBLESHOOTING

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20

5.1.

Maintenance

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20

5.2.

Troubleshooting

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21

5.3.

Electrical schematic drawing

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Summary of Contents for 250MIG

Page 1: ...SERIES 250MIG MIG ...

Page 2: ... 3 Volt Ampere Characteristic 9 2 4 Principles of Welding 10 3 INSTALLATION ADJUSTMENT 11 3 1 Parameters 11 3 2 Dutycycle and Over heat 12 3 3 Equipment Connection 12 3 4 Maintenance of MIG Gun mechanism 13 3 4 1 Dissection graphics for the MIG GUN 13 3 4 2 The parts list for the MIG GUN 14 3 4 3 The operation for the MIG GUN 14 4 OPERATION 16 4 1 Layout for the front and rear panel 17 ...

Page 3: ...oltage Setting 17 4 2 2 Wire speed setting 17 4 3 Welding parameters 18 4 4 Operation environment 18 4 5 Operation Notices 19 5 MAINTENANCE TROUBLESHOOTING 20 5 1 Maintenance 20 5 2 Troubleshooting 21 5 3 Electrical schematic drawing 23 ...

Page 4: ...cause of the DC voltage existing in the electrolytic capacitors ELECTRIC SHOCK CAN KILL Never touch electrical parts Wear dry hole free gloves and clothes to insulate yourself Insulate yourself from work and ground using dry insulation Make certain the insulation is large enough to cover your full area of physical contact with work and ground Take carefully when using the equipment in small place ...

Page 5: ... as low as possible and below Threshold Limit Values using local exhaust or mechanical ventilation In confined spaces or in some circumstances outdoors a respirator may be required Additional precautions are also required when welding on galvanized steel Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing cleaning or spraying operations The heat and rays of the arc ...

Page 6: ...ly available Where compressed gases are to be used at the job site special precautions should be used to prevent hazardous situation When not welding make certain no part of the electrode circuit is touching the work or ground Accidental contact can cause overheating and create a fire hazard Do not heat cut or weld tanks drums or containers until the proper steps have been taken to insure that suc...

Page 7: ...e in place and hand tight except when the cylinder is in use or connected for use 1 3 The knowledge of Electric and Magnetic Fields Electric current flowing through any conductor causes localized Electric and Magnetic Fields EMF The discussion on the effect of EMF is ongoing all the world Up to now no material evidences show that EMF may have effects on health However the research on damage of EMF...

Page 8: ...s automatic protection functions with intelligent to over voltage over current and over heat If any one of the above problems happens the alarm lamp on the front panel will be lighted and output current will be shut off automatically to protect itself and prolong the equipment using life RONCHWELD 250MIG Features Digital control system real time display the welding parameters High performance mult...

Page 9: ...nd is outputted by inductance filtering when MIG Meanwhile the welding current parameter can be adjusted continuously and infinitely to meet with the requirements of welding craft 2 3 Volt Ampere Characteristic RONCHWELD 250MIG welding machine has an excellent volt ampere characteristic whose graph is shown as the following figure The relation between the rated loading voltage U2 and welding curre...

Page 10: ...10 2 4 Principles of welding ...

Page 11: ... 250 Welding Voltage V 13 5 26 5 No load Voltage V 47 Duty cycle 40 60 250A 100 200A Diameter mm Fe 0 6 0 8 0 9 1 0 1 2 Ss 0 8 0 9 1 0 1 2 Flux cored 0 6 0 8 0 9 1 0 1 2 Power Factor 0 7 Efficient 85 Protection class IP23 Insulation class H Cooling AF Dimensions mm 618 240 445 Weight Kg 23 Note The above parameters are subject to change with the improvement of machines ...

Page 12: ...een the duty cycle X and the output welding current I is shown as the right figure If transformer is over heat the heat relay inside it will open and will output an instruction to circuit board cut AC relay and the output welding current and brighten the over heat pilot lamp in the front panel At this time the machine should be relaxed for 15 minutes to cool the fan When operating the machine agai...

Page 13: ... torch tip and press the wire properly with the handle 3 4 Maintenance of MIG Gun mechanism 3 4 1 Dissection graphics for the MIG GUN 标准化工艺批准日期设计制图校对审合处数标记更改文件号重量 g 共页共日期签字上海亿诺科技有限公司零部件描述参考编号材料公差选择范围页外形尺寸 ICT2098 描述图号序号备注焊枪15 3米弹性针蓝色手柄上海市顾戴路2535弄99号3号楼2楼 16 图号序号 1 2 9 3 6 7 8 11 10 12 13 描述数量备注 1 2 3 4 7 11 12 13 14 15 16 17 ICS0063 ICU0003 08 ICZ6087 ICV0685 ...

Page 14: ...4 3 The operation for the MIGGUN 1 Service the wire feed mechanism at least every time the reel is changed Check the wear of the feed roll groove and change the feed roll when necessary Clean the welding gun wire guide with compressed air 2 Cleaning the wire guide Pressure of the feed rolls remove metal dust from the filler wire s surface which then finds its way to the wire guide If the wire guid...

Page 15: ...hat it rotates counter clockwise You can use either a diameter 200mm or 100mm wire reel in the machine Attach the reel with a reel lock Unfasten the wire end from the reel but hold on it all the time Straighten the wire end for approximately 20 cm and cut the wire in the straightened location Open the pressure control level which then opens the feed gear Thread the wire through the wire s rear gui...

Page 16: ...16 4 OPERATION ...

Page 17: ...is lighted when open the machine 8 Alarm Led When the welder is over voltage less voltage over current or over heated the alarm pilot lamp will be on 9 Wave control knob Controls arc characteristics Determines the rate at which the amperage rises when a short circuit is produced 10 Manual wire switch air check switch up for manual wire and down for air check 11 MIG GUN Connect 12 Output cathode Th...

Page 18: ...nt Height above sea level 1000 M Operation temperature range 10 40 Air relative humidity is below 90 20 Preferable site the machine some angles above the floor level the maximum angle does not exceed 15 Protect the machine against heavy rain or in hot circumstance against direct sunshine The content of dust acid corrosive gas in the surrounding air or substance can not exceed normal standard Take ...

Page 19: ...people should be left Do not watch the arc in unprotected eyes Ensure good ventilation of the machine to improve duty ratio Turn off the engine when the operation finished for economize energy sources When power switch shuts off protectively because of failure Don t restart it until problem is resolved Otherwise the range of problem will be extended In case of problems contact your local dealer if...

Page 20: ...e department if there are no accessories After turn on power watch listen to that whether the arc welding machine has shaking whistle calling or peculiar smell If there is one of the above problems find out the reason to get rid of if you can t find out the reason Please contact local this area agent or the branch company Observe that whether the display value of LED is intact If the display numbe...

Page 21: ... 1MΩ insulation is thought to be damaged and need to change and need to change or strengthen insulation 5 2 Troubleshooting Before arc welding machines are dispatched from the factory they have already been debugged accurately So forbid anyone who is not authorized by our company to do any change to the equipment Maintenance course must be operated carefully If any wire becomes flexible or is misp...

Page 22: ...skids Press it tightly again The wheel doesn t fit with the diameter of weld wire Change the wheel Wire reel damaged Change it Wire feed pipe is jammed Repair or change it Tip is jammed because of splash Repair or change it 5 No striking arc and no output voltage Output cable is connected mistakenly or loosen Screw it down or change it Control circuit damaged Check the circuit 6 Welding stops and ...

Page 23: ...23 5 3 ELECTRICAL SCHEMATIC DRAWING ...

Page 24: ...24 250MIG MIG ...

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