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Related Manuals for Westweld NB-250LB
Summary of Contents for Westweld NB-250LB
- Page 1 NB-250/270/315LB MIG/MAG/CO WELDING MACHINE MANUAL INSTRUCTION １...
- Page 2 Safety Depends on You Huayuan arc welding and cutting equipments are designed and built with safety in mind. However, your overall safety can be increased by proper installation. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT.
- Page 3 Cautions Arc and arc rays may harm health. Arc welding can be hazardous. All performing welding workers ought to have health qualification that provided by authority organization. Protect yourself and others from possible serious injury or death. Keep children away. Pacemaker wearers should consult with their doctor before operating.
- Page 4 are asepsis and innocuity. Spatter: Welding or cutting spatter can cause fire or explosion. Remove fire hazards from the welding area. If this is not possible, cover them to prevent the welding sparks from starting a fire. Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.
- Page 5 Do not put your hand close to fans and do not move the brake handle while operating. Please remove the connection between the engine and the welding equipment to avoid sudden starting during maintenances. When engine is hot, it is forbidden to open the airtight cover of the radiator water tank to avoid hurt by the hot vapor.
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Page 6: Table Of Contents
Content 一、 Summary .................................. ７ 1. Model introduction ..............................７ 2. Features .................................. ７ 3. Usage ..................................７ 4. Symbols Introduction ............................. ７ 5. Safety attentions ..............................７ 二、 Working condition and environment ........................８ 1. Operation place ..............................８ 2. -
Page 7: 一、 Summary
Summary 一、 Model introduction — □□□ Product series Rated welding current(A) Semi-automatic welding Gas shield welding machine 2. Features Striking arc under high voltage and slow wire feed. Smooth and stable arc striking with high success rate; Adopting unique feedback control circuit of arc voltage and current, stable welding process, little spatter, strong adaptability of wire extension change, wide adjusting range for matching current and voltage, well-shape weld appearance;... -
Page 8: 二、 Working Condition And Environment
To prevent electric shock, please do ground the green-yellow wire well; Wear protective equipments To prevent the hurt of welding gas, dust, arc, spatter and noise, please do wear some protective equipments and install necessary ventilation devices. Keep kids away from the dangerous area; ... -
Page 9: 四、 Products System Introduction
Insulation grade IP21S Ingress protection Dimension(L×W×H) 640×300×595 Power net weight The static external characteristic of this machine is dropping characteristic, it`s rated duty cycle is 35%, which means in a 10 minutes work cycle, the welding machine can work 3.5 minutes(stop 6.5 minutes) under the rated current. - Page 10 Function of figures 2 as below: 1. Digital display meter of voltage：when machine is not working, it display preset voltage, when machine is working, it display the actual welding voltage; 2. Digital display meter of current：to display the actual welding current； 3.
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Page 11: Rear Panel Function Drawing
2. Rear Panel Function Drawing Input cable of three phase power: connect to distribution box, connect the green-yellow wire to ground wire reliably; Heater power source interface: Heater connector, output voltage 36VAC; Wire feeding fuse holder: Used for short connect and over current protection of Wire feeder power supply circuit, inside Fuse 8A;... - Page 12 Note: Gas bottle bracket is the optional!!! Gas bottle installation drawing： M8 screw （18pcs） （FIG 5 Gas bottle bracket installation drawing） M6 screw （6pcs） (FIG 6 Gas bottle U-Style bracket installation drawing) Note: if buy gas bottle bracket together machine, please remove the two rear wheels and install them on the support plate of bracket, Then install U-style bracket and done,refer to Fig 5 and 6.
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Page 13: 六、 Installation
Installation 六、 Power supply: Specification NB-250LT NB-315LT Capacity of power supply switch(A) Capacity of fuse (A) Sectional area of power supply line ≥2.5 ≥2.5 Sectional area of ≥4 ≥4 ground wire(mm Installation (please refer to figure 8) Make sure the distribution switch is cut down, and then connect the welding machine. Do not operate with wet hands. -
Page 14: 七、 Operation
Install the CO pressure flow regulator on the gas cylinder, fasten the nuts; Connect the plug of CO pressure flow regulator heater to the socket in the back panel; Connect the φ8 gas line to the output air cock of CO pressure flow regulator, and connect the other end of gas line to input air cock, clamp it with hoop. -
Page 15: Matters Need Attention
To get excellent welding performance, the "welding current" and "welding voltage" should be adjusted when welding. 2. Matters need attention A. When welding, the cable of welding torch can not be bended too much, or it will affect normal wire feeding; B. - Page 16 3.The contact tip is blocked 5.Clean the dirty or dust in wire by spatter; feeding pipe by dry compressed air 4.The wire reel slog is or replace it with a new one; abraded; 6.Make the bending diameter of 5.The wire feeding pipe of torch cable larger than 300mm;...
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Page 17: 九、 Complete Sets
the shield gas; 9.Wrong model of contact tip or the tip hole is damaged; 10.Too much dirt in wire feed pipe; 11.Ground wire gets flexible; 1.Short circuit on switch; 1.Repair or replace welding torch; 9.Wire is feed without 2.Manual wire feeding 2.Replace manual wire feeding pressing torch... -
Page 18: 十、Drawing
十、Drawing １８... - Page 19 The final explanation rights reserved to Westweld /Huayuan 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 sales@westweld.com www.westweld.com １９...
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