Arcoweld ARCOSTICK MMA 180, Operator'S Manual

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Page 2: ...ith dependable service and our extensive range of first class products Our range can be viewed at https arcoweld com au For support please contact your Authorised distributor or Arcoweld directly T 61 8 9248 3188 F 61 8 9248 3166 93 Mulgul Road MALAGA WA 6090 PO Box 3087 MALAGA DC WA 6945 Email info arcoweld com au Website www alloysteel net ...

Page 3: ...DING POLARITY CONNECTION 8 3 3 1 MMA 8 3 3 2 TIG SET UP 9 4 2 WELDING CURRENT ADJUSTMENT 12 4 3 WELDING OPERATION 12 4 3 1 Striking the arc 12 4 3 2 Manipulation of electrode 13 4 4 WELDING PARAMETERS 13 4 4 1 Joint form in MMA 13 4 4 2 Electrode selection 14 4 5 ARC WELDING DEFECT AND PREVENT METHOD 14 4 7 OPERATIONAL ENVIRONMENT 15 4 8 OPERATIONAL NOTICE 16 5 MAINTENANCE TROUBLESHOOTING 17 5 1 M...

Page 4: ...acitors 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 care when using the equipment in confined spaces heights and wet circumstances Always isolate machine powe...

Page 5: ... such as stainless or hard facing or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes keep exposure 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 D...

Page 6: ...sistant material to protect your skin and that of your helpers from the arc rays Protect other nearby personnel with suitable non flammable screening and or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal ...

Page 7: ...and openings to adjacent areas Avoid welding near hydraulic lines Have a fire extinguisher readily 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...

Page 8: ...y from the cylinder valve outlet when opening the cylinder valve Valve protection caps should always be 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 discuss on the effect of EMF is ongoing all the world Up to now n...

Page 9: ... also realize TIG operation In MMA operation if the electrode touches workpiece over two seconds the welding current will drop to the minimum current automatically to protect the electrode In TIG operation the minimum current will be outputted firstly until the arc is ignited by the lifting method the output current will rise to the preset value which can protect the electrode At the same time the...

Page 10: ...itive feedback control Single phase AC DC AC DC 220V 10 50 60 HZ AC DC 2 3 Volt Ampere Characteristic Arcostick welders have excellent volt ampere characteristic as per the following graph In MMA welding the relation between the rated loading voltage U2 and welding current I2 is as follows When I2 600A U2 20 0 04 I2 V When I2 600A U2 44 V 64 44 20 0 600 I2 A U2 V Working point Volt ampere characte...

Page 11: ...ted welding current The relation between the duty cycle X and the output welding current I is shown as the right figure If the welder is over heated the IGBT over heat protection unit inside it will output an instruction to cut output welding current and brighten the over heat pilot lamp on the front panel At this time the machine should be relaxed for 15 minutes to cool the fan When operating the...

Page 12: ...electrode touches the workpiece the short circuit current is only 10A After generating arc current can rise to the preset welding current If the tungsten electrode touches the workpiece when welding the current will drop to 10A within 2s which can reduce tungsten spoilage prolong the using life of the tungsten electrode and preventing tungsten clipping For TIG operation the shielded gas is inputte...

Page 13: ...D ADJUSTMENT MMA180OPERATION FrontPanelLayout 2 MMA LiftTigSwitch 1 AmpDisplay 5 VoltDisplay 6 OverCurrentLight 7 HighTemperatureLight 8 VRDLight 3 AmperageAdjustment 9 PositivePolarityOutput 4 NegativePolarityOutput ...

Page 14: ...INSTALLATION AND ADJUSTMENT MMA180OPERATION BackPanel 10 PrimaryPowerLead 11 MachineOn OffSwitch ...

Page 15: ... to set parameters and adjust accurately 4 3 Welding operation 4 3 1 Striking the arc Striking Take the electrode upright to touch the workpiece after forming a short circuit quickly lift about 2 4 mm and arc will be ignited This method is difficult to master but with practice will provide good results electrode workpiece electrode electrode workpiece workpiece Take the electrode upright The Elect...

Page 16: ...The operator can choose the manipulation of electrode based on welding joint design welding position electrode spec welding current and operation skill etc The details please refer to Welding Dictionary P69 Volume 1 of Edition 2 4 4 Welding parameters 4 4 1 Joint form in MMA In MMA welding the common basic joint form butt joint lap joint corner joint T joint butt joint lap joint corner joint T joi...

Page 17: ... undercut blowhole etc If the arc is too short it will cause electrode sticking In MMA welding the arc length is usually equal to 0 5 1 0 time of the electrode diameter The basic electrode s arc length is not beyond the electrode diameter it s better to choose the short arc welding method the electrode s arc length is equal to the electrode diameter 4 5 Arc Welding Defect and Prevent Method Defect...

Page 18: ...ect Clear out the dust around groove for about 20 30mm Dry the electrodes to guidelines Choose correct parameters Keep a close arc Inclusion slag inclusion The slag clears bad in the middle layer in the welding process Under current or over speed in the welding Welding operation is not correct The welding material cannot match the work piece The groove design processing are not proper Choose the c...

Page 19: ...to use this equipment Connect the ground wire with the machine directly and refer to 3 5 Input power must be AC as one phase 50Hz 220V 10 Do not touch the output electrode with any part of your body Do not watch the arc in unprotected eyes Ensure good ventilation of the machine to improve duty cycle Turn off the equipment engine when the operation is finished Do not restart equipment if it turns o...

Page 20: ...et value If there is any difference and it has affected the normal welding arc please adjust it Check whether fan is damaged and is normal to rotate or control If the fan is damaged please change immediately If the fan does not rotate after the arc welding machine is over heated observe whether there is something blocked in the blade if it is blocked please remove If the fan does not rotate after ...

Page 21: ...ave already been debugged accurately Maintenance must be conducted carefully If any wire becomes flexible or is misplaced it may be cause potential danger to user Only professional maintenance personal who are authorized by our company or supplier can overhaul the machine If there is any problem and there is nil authorized professional maintenance personal available please contact your local suppl...

Page 22: ...rcuit Pr1 and Pr2 5 No current output Welding cable is not connected to the welder Connect the welding cable to the welder s output Welding cable is broken Wrap repair or change the welding cable Earth cable is not connected or loose Check the earth clamp 6 Difficult to start arc or electrode sticking The plug or connections are loose Check and tighten the plug Oil or dust covered the workpiece Ch...

Page 23: ... the position of earth clamp or add earth cable on both sides of workpiece 11 The alarm light is on Overheat protection Over welding current Reduce the welding current output Working time too long Reduce the duty cycle interval work Over current protection Unusual current in the main circuit Test and repair the main circuit and drive PCB Pr1 ...

Page 24: ...21 5 3 Electrical principle drawing 180 system chart ...

Page 25: ...mitation of Liability Arcoweld Shall Not Under Any Circumstances Be Liable for Special Indirect or Consequential Damages Such As But Not Limited To Lost Profits and Business Interruption The remedies of the Purchaser set forth herein are exclusive and the liability of Arcoweld with respect to any contract or anything done in connection therewith such as the performance or breach thereof or from th...

Page 26: ...pensation for other reasonably foreseeable loss or damage You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure Note No employee agent or representative of Arcoweld is authorized to change this warranty in any way or grant any other warranty and Arcoweld shall not be bound by any such attempt Co...

Page 27: ... return of goods to Arcoweld or our Nominated Accredited Distributor Accredited Service Provider are the responsibility of the consumer Arcoweld A B N 98 094 428 887 T 61 8 9248 3188 F 61 8 9248 3166 93 Mulgul Road MALAGA WA 6090 PO Box 3087 MALAGA DC WA 6945 Email info arcoweld com au Website www alloysteel net This warranty is provided in addition to other rights and remedies you have under law ...