Arcoweld Arcostick MMA 160 Minespec Operator'S Manual Download | Manualshive

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MAINTENANCE AND TROUBLESHOOTING

19

5.2 Troubleshooting



Before arc welding machines are dispatched from the factory, they have already
been debugged accurately.



Maintenance must be conducted carefully.



Only trained maintenance personal who are authorized by Arcoweld can overhaul
the machine.



Always shut off the arc welding machine’s power before working on the
equipment.



If there are problems with the machine, please contact your local agent.

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Summary of Contents for Arcostick MMA 160 Minespec

Page 1: ......

Page 2: ...ou with 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: ...LDING POLARITY CONNECTION WAY 9 3 3 1 MMA 9 3 3 2 TIG 10 4 OPERATION CONTROL AND CONNECTORS 11 4 1 LAYOUT FOR FRONT REAR PANEL 11 4 3 WELDING OPERATION 13 4 3 1 Striking the arc 13 4 3 2 Manipulation of electrode 14 4 4 WELDING PARAMETERS 14 4 4 1 Joint form in MMA 14 4 4 2 Electrode selection 14 4 5 ARC WELDING DEFECT AND PREVENTION METHOD 15 4 6 OPERATION ENVIRONMENT 16 4 7 OPERATION NOTICES 16 ...

Page 4: ... 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 restricted spaces and wet circumstances Never close the machine power before installation and adjustment Ensure you ...

Page 5: ...s away from the breathing zone When welding with electrodes which require special ventilation 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 respirato...

Page 6: ...en welding or observing open arc welding Use suitable clothing made from durable flame resistant 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: ...er or any other electrically hot parts to touch a cylinder Keep your head and face away 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 Mag...

Page 9: ...matic protection functions for under voltage over current overheat etc Should a problem occur an alarm on the front panel will light up and at the same time the output current will be cut off It can self protect and prolong the using life and greatly improved the reliability and practicability of the welders Arcoweld MMA welders can also realize TIG operation In operation if the electrode touches ...

Page 10: ...um frequency rectifier fast recovery diodes and is outputted by inductance filtering The circuit adopts current feedback control technology to insure current output stably Meanwhile the welding current parameter can be adjusted continuously and steplessly to meet with the requirements of welding craft 2 3 Volt Amperage Characteristic Arcoweld MMA welders have excellent volt amperage characteristic...

Page 11: ...4 22 3 Rated input power KW 2 2 3 8 3 1 4 7 Power factor 0 99 0 99 Welding current range A 10 125 10 160 Max no load voltage V 55 80 Efficiency 80 80 Duty cycle 40 10 minutes see 3 2 35 125A 60 95A 100 100A 60 125A 100 90A 40 160A 60 125A 100 90A Protection class IP23 Insulation class F Dimensions of Machine L W H mm 365 140 230 Weight Kg 8 Note The above parameters are subject to change with the ...

Page 12: ...welder is overheating the IGBT over heat protection unit inside will output an instruction to cut output welding current and light up 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 machine again the welding output current or the duty cycle should be reduced 3 3 Welding polarity connection 3 3 1 MMA Choosing t...

Page 13: ...c current can rise to the pre set welding current If the tungsten electrode touches the workpiece when welding the current will drop to 5A within 2s which can reduce the tungsten spoilage prolong the using life of the tungsten electrode and prevent tungsten clipping With TIG operation the shielded gas is inputted to the welding gun directly and the method of lifting arc is lifting the electrode ...

Page 14: ...NECTORS MMA160MINESPECOPERATION ThelayoutoftheFrontPanel 2 MMA LiftTigSwitch 1 AmpDisplay 5 VoltDisplay 6 OverCurrentLight 7 HighTemperatureLight 8 VRDLight 3 AmperageAdjustment 9 PositivePolarityOutput 4 NegativePolarityOutput ...

Page 15: ...OPERATION CONTROL AND CONNECTORS MMA160MINESPECOPERATION ThelayoutoftheBackPanel 10 PrimaryPowerLead 11 MachineOn OffSwitch ...

Page 16: ... operation 4 3 1 Striking the arc Striking arc 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 is quite effective electrode workpiece electrode electrode workpiece workpiece Take the electrode upright The Electrode touch the workpiece Lift up for about 2 4mm uprigh...

Page 17: ... 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 4 4 2 Electrode selection The electrode diameter selection is based on the workpiece thickness welding position joint form welding layer etc Please refer to the following table The welding current reference for different electrode diameter Electrode diameter mm 1 6 2 0 2...

Page 18: ...le assembly gap improve the assembly quality Choose the proper welding parameters Improve the operation skill of welders Undercut Over current Arc length is too long The electrode angle is wrong Manipulation of electrode is not correct Choose the proper welding current speed The arc should be kept short The electrode angle should be correct Manipulation of electrode should be correct Incomplete pe...

Page 19: ...stal segregation is caused At the same time with the effect of welding stress the hot crack is formed Strictly control the percentage of S and P in welding material Adjust the structure of welding material Adopt the basic electrode Cold crack Three reasons will cause cold crack The structure turned from the marten site The residual stress caused by high restraint intensity The residual hydrogen in...

Page 20: ...c with unprotected eyes Ensure good ventilation of the machine to improve duty ratio Turn off the engine when the operation finished to economize energy sources When power switch shuts off protectively because of failure do not restart it until problem is resolved Otherwise the problem may be extended In case of problems contact your local dealer or Authorized repair agent ...

Page 21: ...y PCB under authorised repair agent Observe whether the min max value on LED accords with the set value If there is any difference and it has affected the normal welding craft 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 overheated observe is there is some...

Page 22: ...y have already been debugged accurately Maintenance must be conducted carefully Only trained maintenance personal who are authorized by Arcoweld can overhaul the machine Always shut off the arc welding machine s power before working on the equipment If there are problems with the machine please contact your local agent ...

Page 23: ...amp 6 Not easy to start arc or easy to cause sticking The plug is loose or connection is faulty Check and tighten the plug Oil or dust covered the workpiece Check and clear out MMA TIG welding selection is wrong Selecting the MMA welding 7 The arc is not stable in the welding process The arc force is too small Increase the arc force 8 The welding current can not be adjusted The welding current pot...

Page 24: ...le drawing GM 1600 GM 2000 AC 1 AC 3 2 4 24V L TRANS2 OC Pr2 OC1 OC2 Pr1 OC1 OC2 K1 AC220 230 50 60HZ OUT OUT FAN LED1 LED2 VR1 K2 Pr3 IGBT IGBT IMOUT MBIN MB IN FJ QD8 QD3 QD1 QD2 IFB OT AC1 AC2 AC3 AC4 IGBT PFC AC 1 AC 3 2 4 ...

Page 25: ...160 PFC CEL SYSTEM 22 ...

Page 26: ...eads 1 year 1 year ArcoMig Inverters Power source 3 years 3 years MIG torch Electrode holders and work leads 3 Months 3 Months Mig torch consumable items Nil Nil Gas regulator flowmeter excluding seat assemblies pressure gauges elastomer seals and O rings 1 year 1 year Regulator seat assemblies and pressure gauges 6 Months 6 Months Elastomer seal and O rings used in the equipment 3 Months 3 Months...

Page 27: ...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 28: ... 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 ...

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