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BossWeld MST X250 PFC, User Manual

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BossWeld MST X250 PFC User Manual Download Page 16

OPERATION 

- 13 - 

3.4 Maintenance of MIG Gun mechanism 

3.4.1 Dissection graphics for the MIG GUN 

1

2

3

4

7

11

1

2

1

3

1

4

1

5

1

6

1

7

1

8

1

9

10

9

5

6

8

3.1

 

3.4.2 The parts list for the MIG GUN

 

NO. Description 

QTY.  Remark 

1 

Tip D.12  14-15AK   

1 

 

2 

Electric nozzle 0.8/M6*25     

1 

 

3 

15AK Goose gun neck

（

Hexangular adapter and Plastic adapter

）

  

1 

 

3.1 

15AK  Goose gun 

1 

 

4 Hexangular 

adapter 

1 

 

5 Plastic 

adapter 

1 

 

6 

MIG blue handle 

1 

 

7 

Torch Switch  21.8mm    

1 

 

8 

Screw  D.3*10          

3 

 

9 

Handle locking ring 

1 

 

10 

Cable fixing joint 15AK   

1 

 

11 

Coaxial cable team /16mmq/3m     

1 

 

12 

Cable thimble 12-16-25 MMQ     

1 

 

13 CO

2

 Euro-rear thimble 

1 

 

14 

Screw M4*6 UNI 6107     

1 

 

15 

Torch locknut /plastic screw thread 

1 

 

16 

Euro-main socket/flexibility pin 

1 

 

17 

Feeding pipe locknut 

1 

 

18 

Insulating feed pipe 0.6-0.8 3m, Blue 

1 

 

19 

Spanner for the electric nozzle 

1 

 

Summary of Contents for MST X250 PFC

Page 1: ...USER MANUAL ...

Page 2: ...ct tort or under any warranty or otherwise shall not except as expressly provided herein exceed the price of the goods upon which such liability is based No employee agent or representative of Dynaweld is authorized to change this warranty in any way or grant any other warranty PURCHASER S RIGHTS UNDER THIS WARRANTY ARE VOID IF REPLACEMENT PARTS OR ACCESSORIES ARE USED WHICH IN DYNAWELD S SOLE JUD...

Page 3: ...mpere Characteristic 8 3 Installation and Adjustment 10 3 1 Parameters 10 3 2 Duty cycle and Over heat 10 3 3 Equipment Connection 11 4 Operation 15 4 1 Layout for the front and rear panel 15 4 2 Welding operation 17 4 3 Welding parameters 19 4 4Operation environment 20 4 5 Operation Notices 20 5 Maintenance Troubleshooting 21 5 1 Maintenance 21 5 2 Troubleshooting 22 5 3Electrical schematic drawi...

Page 4: ... ned professi on concerne chine power the DC volt ECTRIC arts ves and cloth work and h to cover y using the e e power bef SAFETY 1 Safety Notice R age for you a safe opera xplanations operation W ionally can ed people sh r please m tage existin C SHOCK hes to insul ground usin your full are equipment i fore installat y Running part ur body or o ation after are to som While seein install deb hould ...

Page 5: ...es usin me circumst e also requir ions near c SAFETY 2 ctly and gro cording the circuits ar s with your e welding t ding gun ar akes a good ould be as k clamp we place damag r cooling cally hot between the vel use a sa ND GASE gases hazard keep your h arc to keep electrodes w ad or cadmi c fumes ke ng local exh tances outd red when w chlorinated ound the wo operation m re electrical bare skin o th...

Page 6: ...top the vaporizing SAFETY 3 erations Th gene a hig ing can disp ecially in co cturer s inst the materia YS CAN B er and cove welding or o durable flam e arc rays with suitable xpose thems OTECTIO s covers an nd tools aw erating or re gine fan Do ntrol rods w ds the fuel e engine and on contact he heat and ghly toxic place air an onfined area tructions fo al safety dat BURN er plates to bserving op...

Page 7: ... other altern cables until SAFETY 4 If fuel is ated SPARKS ding area I rting a fire sily go thro hydraulic lin used at the n no part of an cause ov drums or co dures will n ause an exp s before hea rom the we vy shirt cuf n welding o shields wh k as close to framework y of the wel nate circuit they fail spilled wip S can caus If this is no Remember ough small nes Have a e job site sp the electrod ...

Page 8: ... Elect wing through The discus erial eviden n damage of sure to EMF EMF we sh nd work ca away and f SAFETY 5 arts may ers containin g regulators be suitable f ht position s may be struck ng or cuttin de holder or om the cyli ays be in pl e tric and h any cond ssion on the nces show th f EMF is st F as few as hould use th ables togeth far from the be dange ng the corr s designed for the appl secure...

Page 9: ...ng machine and power cable to be far away from the operator as far as possible according to the actual circumstance Connect the work cable to the workpiece as close as possible to the area being welded The people with heart pacemaker should be away from the welding area ...

Page 10: ...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 MIG SERIES Features 1 Digital control system real time display the welding parameters 2 High performance multifunction power source MMA MIG MAG 3 Waveform contro...

Page 11: ... by inductance filtering The circuit adopts current feedback control technology to insure current output stably when MMA or TIG And adopts voltage feedback control technology to insure voltage output stably 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 MIG SERIES welding mac...

Page 12: ...OVERVIEW 9 44 14 0 600 Io A Uo V Working point Volt ampere characteristic The relation between the rated loading voltage and welding current 2 4Principles of welding ...

Page 13: ...30 MMA 110A30 TIG 150A40 MIG 200A30 MMA 200A25 TIG 200A35 MIG 160A35 MMA 130A30 TIG 140A35 MIG 250A35 MMA 250A30 TIG 250A35 Diameter mm Fe 0 6 0 8 0 9 1 0 1 2 Ss 0 8 0 9 1 0 1 2 Protection class IP23 Insulation class H Dimensions mm 550 214 395 635 240 430 Weight Kg 12 5 25 Note The above parameters are subject to change with the improvement of machines 3 2 Duty cycle and Over heat The letter X st...

Page 14: ...uction 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 again the welding output current or the duty cycle should be reduced 3 3 Equipment Connection ...

Page 15: ...e of gas cylinder to the input joint of gas valve on the wire feeder and clamp it 6 Insert the torch joint into the output of wire feeder unit and keep the wire aim at the wire feeder mouth Note The plane of the joint should be aimed at screw plugged tightly and rotated 90º then screw the bolt tightly to ensure the gun contacting closely 7 Connect the shielded gas pipe of torch with the output of ...

Page 16: ... and Plastic adapter 1 3 1 15AK Goose gun 1 4 Hexangular adapter 1 5 Plastic adapter 1 6 MIG blue handle 1 7 Torch Switch 21 8mm 1 8 Screw D 3 10 3 9 Handle locking ring 1 10 Cable fixing joint 15AK 1 11 Coaxial cable team 16mmq 3m 1 12 Cable thimble 12 16 25 MMQ 1 13 CO2 Euro rear thimble 1 14 Screw M4 6 UNI 6107 1 15 Torch locknut plastic screw thread 1 16 Euro main socket flexibility pin 1 17 F...

Page 17: ...wire guide Blow the wire feed mechanism and reel housing clean with compressed air Reattach the welding gun s parts Tighten the contact tip and contact tip s adapter to spanner tightness 3 Changing the wire guide If the wire guide is too worn or totally clogged change it to a new one according to the following instructions Open the mounting nut of the wire guide which exposes the end of the wire g...

Page 18: ...OPERATION 15 4 Operation 4 1 Layout for the front and rear panel ...

Page 19: ...splay when MIG mode before welding Unit V 8 Welding voltage Down slope Arc force knob On MIG When the program voltage can t perfectly match the welding current the knob can adjust voltage On TIG the knob can adjust the current down time On MMA the knob can adjust the force current 9 Power Led Power led is lighted when open the machine 10 Alarm Led When the welder is over voltage less voltage over ...

Page 20: ...ion 1 Shielding Gas choice 1 When the wire material is Fe the shielding gas is 80 Ar 20 CO2 2 When the wire material is Ss the shielding gas is 98 Ar 2 O2 3 When the wire material is Al the shielding gas is 100 Ar 2 Welding state choice 1 Press the weld manner key choose MIG manner and the MIG LED is lighted 2 Spool Gun Switch turn off down 3 Manual wire switch air check switch Burnback adjust Slo...

Page 21: ...programmable welding voltage isn t the perfect for the operator the voltage can be changed tinily by adjusted the knob 4 If the operator adjust the wave control knob the arc characteristics can be controlled 4 2 2 TIG mode operation 1 Press the weld manner key choose TIG manner and the TIG LED is lighted 2 Press the welding mode key choose 2T or 4T 3 Adjust the current knob to control the welding ...

Page 22: ...ent 3 Adjust the welding arc force knob to control the arc force current Note The current display is preset current before welding and is welding current when welding The voltage display is real voltage 4 3 Welding parameters Wire diameter mm Welding current A Plate thickness mm 0 6 25 110 1 0 1 6 0 8 35 160 200 1 0 2 3 0 9 45 160 200 1 0 2 3 1 0 45 160 200 1 2 6 ...

Page 23: ... free distance between the machine and wall 4 5 Operation Notices Read 1 carefully before attempting to use this equipment Connect the ground wire with the machine directly and refer to 3 5 Ensure that the input is single phase 50 60Hz 220 230 240V 10 Before operation no concerned people should be left Do not watch the arc in unprotected eyes Ensure good ventilation of the machine to improve duty ...

Page 24: ...ter 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 number is not intact please replace the damaged ...

Page 25: ...Measure the insulating impedance among the main circuit PCB and case if it below 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 Maint...

Page 26: ...oesn t work Motor damaged Check and change it Control circuit damaged Check the board Wire reel works The press wheel is loosen or weld wire 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 vol...

Page 27: ...MAINTENANCE AND TROUBLESHOOTING 24 5 3Electrical schematic drawing ...

Page 28: ...NOTES CONTACT DETAILS Dynaweld Industrial Supplies Pty Ltd 5 Sheridan Close Milperra NSW 2214 Phone 02 9772 1144 Fax 02 9771 5375 www bossweld com au ...

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