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USER MANUAL

MIG/NBC 300GN

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Summary of Contents for MIG/NBC 300GN

Page 1: ...USER MANUAL MIG NBC 300GN...

Page 2: ......

Page 3: ...USTRATION 10 6 OPERATION PARAMETER RECOMMENDATION 12 7 STRUCTURE CHART AND MAJOR PART LIST 14 8 CIRCUIT DIAGRAM 16 9 ATTENTIONS PREVENTIVE MEASURES 17 10 POTENTIAL OPERATING PROBLEMS 18 11 DAILY MAINT...

Page 4: ...accidents 3 Follow related regulations for the construction of the input drive force selection of the setup place usage of the high pressure gas storage and configuration safe keeping of the workpiece...

Page 5: ...follow the below notes to avoid accidents like fire and explode Spark and hot workpiece can cause fire It may cause fire if the cable is not connected well or when the current circuit of the steel or...

Page 6: ...body hurt The wire shoot out from the torch can stab eyes face and other naked parts 1 Before feeding the wire do not look into the electric conduction hole or the wire shooted out may stab your eyes...

Page 7: ...ment and measurement g Anti disturb capability of other used equipments Users should ensure these equipments and the environment are compatible and this may need extra preventive measures h Practical...

Page 8: ...que electronic reactor circuit which can precisely control the short circuiting transfer and mixed transfer resulted in better performance than other machines Compared with silicon controlled welding...

Page 9: ...70 300 Output voltage V MIG 16 5 29 MMA 22 4 32 Duty cycle MIG 35 MMA 20 Power factor 0 85 Efficiency 85 Type of wire feeder Internal Wire feed speed m min 3 16 Post flow time S 1 0 0 5 Welding wire...

Page 10: ...nd the machine via air tube 2 Insert the swift plug of earth cable into socket at the front panel 3 Set the wire wheel with wire on the wheel axis the wheel hole should be matched with the wheel fixer...

Page 11: ...tes Turn the welding machine to MMA mode for heating the gas cylinder to prevent CO2 meter icing when the machine is not working under MIG mode USER MANUAL 9 YF 20Y A1 CO2 meter Power supply Three pha...

Page 12: ...justment button 3 MMA MIG switch button 4 2T 4T switch button 5 Abnormal indicator 6 Current meter 7 Remove control indicator 8 Voltage meter 9 Voltage adjustment button 10 Negative output terminal 11...

Page 13: ...chine is under 2T mode as defaulted when it is turn on Press the 2T 4T change over button it is changed to 4T mode Turn it back to 2T by repeat the step above 2 Adjustment button 1 Voltage adjustment...

Page 14: ...150 20 21 45 50 10 15 10 15 1 0 1 2 1 0 1 5 160 180 22 23 45 50 15 15 1 2 1 2 1 6 220 260 24 26 45 50 15 15 20 1 2 1 2 1 6 220 260 24 26 45 50 15 15 20 1 2 1 2 1 6 300 340 32 34 45 50 15 15 20 1 2 1 2...

Page 15: ...8 9 1 2 1 6 500 270 380 29 35 45 50 25 20 25 12 1 2 1 6 500 400 32 36 35 40 25 20 25 High welding speed 1 0 0 8 0 9 450 140 19 20 160 10 15 1 2 0 8 0 9 450 130 150 19 20 120 10 15 1 6 1 0 1 2 450 180...

Page 16: ...STRUCTURE CHART AND MAJOR PART LIST Structure Chart of MIG NBC 300GN USER MANUAL 14 YF 20Y A1...

Page 17: ...Handle 2 13 Right cover 1 41 Fast socket 2 14 Machine chassis 1 42 Down plastic panel 2 15 Fan 1 43 shunt 1 16 Fan cover 2 44 Radiator connect board 1 17 Upper board 1 45 Negative copper connector 1...

Page 18: ...ateboard Topboard 1 2 3 4 5 CON6 1 2 4 5 CON10 1 2 4 3 25 15 12 1 3 CON1 1 3 CON13 1 3 CON3 A Wirefeeder 1 2 CON14 1 2 CON7 Electromagnetismvalve 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8...

Page 19: ...make sure the working area is adequately ventilated It is important for the performance and the longevity of the machine 2 Do not over load The operator should keep an eye on max duty current Compare...

Page 20: ...e deviation of power voltage from rated value may cause that the output current does no accord with adjusted value When the power voltage is lower than rated value the maximum output current may be lo...

Page 21: ...sure perfect contact Especially plugs and sockets Fasten the loosing joints In case of oxidation remove oxide film with sand paper and connect again 4 Prevent water from entering into the machine and...

Page 22: ...s The meter shows Fan works normally No welding output 1 Check if all the sockets in the machine are connected well 2 There is open circuit or badness of connect at the joint of output terminal 3 The...

Page 23: ...tain for the corresponding items which have mark in the column according to the following list respectively Initial problems diagnose Abnormal Items Area and Item to be inspected and maintained No arc...

Page 24: ...n etc Body of weld gun 1 Loose connection of conductive tip nozzle and nozzle contactor 2 Contactor of weld gun body is not plunged in or tightened well Power supply cable of weld gun as well as cable...

Page 25: ...Reason of torch screw thread damage Damage of its head and hole blocked or not Reason of unstable arc and broken arc Wire sending tube Check the extended size of the pipe Change when less than 6mm whe...

Page 26: ...re the narrowing of its contact surface Lead to unstable arc and wire sending Position Checking keys Remarks Torch cable 1 If torch cable over bended 2 If the metal connecting point of mobile plug loo...

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