Westweld NB-350MK Manual Instruction Download

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MANUAL

INSTRUCTION

(PLEASE READ CAREFELLY BEFORE OPERATION)

NB-350/500MK

MIG/MAG/CO

WELDING MACHINE

Summary of Contents for NB-350MK

Page 1: ...MANUAL INSTRUCTION PLEASE READ CAREFELLY BEFORE OPERATION NB 350 500MK MIG MAG CO2 WELDING MACHINE...

Page 2: ...ING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT And most importantly think before you act and be careful Special Attention Very Important AVOID FALLING DOWN WHEN THE WELDING MACHINE IS...

Page 3: ...connection 6 5 3 Welder and wire feeder connection 8 5 4 Gas cylinder and gas regulator connection 8 6 Operation 8 6 1 Pre operation preparation and inspection confirmed items and methods and requirem...

Page 4: ...9 2 Repairing 16 10 Common faults and eliminating methods 16 11 Packing List 19 12 Annex 20 1 NB350MK diagram 20 2 NB500MK diagram 21...

Page 5: ...semiautomatic welding gun are also electrically hot Always be sure the work cable makes a good electrical connection with the metal being welded The connection should be as close as possible to the ar...

Page 6: ...heat cut or weld tanks drums or containers until the proper steps have been taken to insure that such procedures will not cause flammable or toxic vapors from substances inside They can cause an expl...

Page 7: ...e electromagnetic as well as the welding equipment itself Electromagnetic would affect cardiac pacemaker the cardiac pacemaker users should consult one s doctor first The effect of electromagnetic to...

Page 8: ...uan Welding Machine Manufacture reminds users Noise beyond the limit over 80 db can cause injury to vision heart and audition depending on oneself Please consult local medical institution Use the equi...

Page 9: ...c 2 4 Working condition and environment If the following conditions are not met the welding performance may not meet the specifications of the technical specifications and even damage the welder Ambie...

Page 10: ...Symbol instruction 3 Specifications 3 1 Main technical parameters Item Unit Model NB 350MK NB 500MK Input power V Hz 3 380 15 50 60 rated input capacity KVA 17 4 23 8 rated input current A 26 5 36 2...

Page 11: ...mm 0 8 1 0 1 2 1 0 1 2 1 6 cooling mode Air cooling Insulation grade F Ingress protection IP21S Dimension L W H mm 520 295 550 560 295 570 Net weight kg 28 32 Table 2 Main technical parameter 4 Panel...

Page 12: ...oftness and hardness of the arc the size of the splash the formation of the weld and the stability of the arc combustion It is in the standard state at the 0 position and meets the needs of most norma...

Page 13: ...installed 2 Heater power connector The power socket of the gas heater the output voltage is AC36V 1 2A 3 Three phase power cable junction box The three phase power cable of the welder is connected to...

Page 14: ...r cord must meet the relevant national standards The conditions for the user s power supply should be as follows Specification NB 350MK NB 500MK Switch capacitor A 40 63 Fuse capacity A 32 40 Power ca...

Page 15: ...7 Fig 4 Welder installation...

Page 16: ...of the torch to the gas outlet connector of the wire feeder and tighten the crimp nut Insert the control plug into the guide slot and insert it into the wire feeder control socket two cores and tighte...

Page 17: ...ust the flow adjustment knob switch of the gas flow meter so that the indication value on the flow meter is the welding required value Refer to table 6 Step 4 Press weld check gas to weld status 3 Wir...

Page 18: ...f the wire handle to make the pressing force appropriate The ideal pressing force is that the wire can be transported normally It is not suitable for slipping on the wire feeding wheel Please adjust a...

Page 19: ...oint press the torch switch again to enter the arc adjustment state at this time adjust the arcing voltage by adjusting the arc voltage adjustment knob and arc current adjustment knob on the front pan...

Page 20: ...mm Angle weld length mm Wire diameter mm Weld current A Weld voltage V Weld speed cm min elonga tion mm Gas flow L min Flat weld T type connector Low speed condition 1 0 2 5 3 0 8 70 80 17 18 50 60 10...

Page 21: ...210 24 110 15 20 2 3 3 5 1 2 230 25 100 20 25 3 2 3 5 1 2 260 27 100 20 25 4 5 4 5 1 2 280 30 80 20 25 6 5 5 1 2 300 33 70 25 25 Flat angle weld lap joint Thin plate Low speed condition 0 8 0 8 60 70...

Page 22: ...eld speed cm min elongation mm Gas flow L min I type butt welding Low speed condition 0 8 0 8 0 60 70 16 16 5 50 60 10 10 1 0 0 8 0 75 85 17 17 5 50 60 10 10 15 1 2 0 8 0 80 90 17 18 50 60 10 10 15 1...

Page 23: ...voltage after bridge rectified The high frequency voltage output welding voltage after transforming rectifying and filtering 8 2 Drawing Fig 8 Drawing Inside 1 2 1 2 1 5 320 340 32 34 40 50 15 15 20...

Page 24: ...air to prevent the dust from being damp and cause short circuit in the machine to cause malfunction The user should check the installation connection regularly ensure reliable connection 9 2 Repairin...

Page 25: ...moves but there is no wire sending out from torch or the wire feeding is unstable 1 The wire wheel is not tighten 2 The diameter of wire slot is not same as electrode wire 3 The contact tip is blocked...

Page 26: ...se power 2 Wrong welding standard 3 Bad electrode wire quality 4 There is grease dirt or rust on work piece or electrode wire 5 The distribution voltage fluctuates heavily 6 The electrode wire sticks...

Page 27: ...19 11 Packing List 1 NB MK Power source 1pc 2 Wire feeder 1pc 3 Heater 1pc 4 Composite cable 1pc 5 Earth cable 1pc 6 Torch 1pc 7 Documents operation manual certificate warranty 1 pc for each...

Page 28: ...20 12 Annex 1 NB350MK diagram...

Page 29: ...21 2 NB500MK diagram...

Page 30: ...rved to Huayuan Westweld Company If there is any changes in the user s manual forgive not to inform separately Westweld Ltd 4 23 4 No 51 Xuefu Avenue Nanan Chongqing China E mail info westweld com sal...

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