Huayuan Electric NB-500HK Instruction Manual Download Page 4

welding current is strong enough to damage them while having short circuit with them.

5

Cylinder may explode if damaged.

Make sure that the gas in the storage cylinder is qualified for welding, and the decompression

flow-meter, the adapter and the pipe are all in good condition.

Always keep cylinders in an upright position securely chained to an undercarriage or fixed support.

Be sure to put the cylinder in the working space with no crash or shake, and far from welding area.

Never allow the electrode, electrode holder 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.

6

Power

: (For electrically powered welding and cutting equipment) Turn off input power before

installation, maintenance and repair to avoid accidents.

Huayuan welding equipment is Ι class safeguard equipment; please install the equipment in

accordance with the manufacturer’s recommendations by specific persons.

Ground the equipment perfectly in accordance with the manufacturer’s recommendations.

7

Power

:(For engine driven welding and cutting equipment)

Work in ventilated place or outdoors.

Do not add fuel near to fire or during engine starting or welding. When not working, add fuel after

engine is cooling down; otherwise, the evaporation of hot fuel would result in dangers. Do not splash

fuel out of the fuel tank, and do not start the engine until complete evaporation of the outside fuel.

Make sure that all the safeguard equipments, machine cover and devices are all in a good condition. Be

sure that arms, clothes and all the tools do not touch all the moving and rotating components including

V belt, gear and fan etc.

Sometimes some parts of the equipment have to be dismantled during maintenance, but you still have

to keep the strongest safety awareness .

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.

8

Electromagnetic

: Welding current going though any area can generate 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 one’s health is not confirmed, and it might have some negative effect to one’s health.

Welders may use following method to reduce the hazardous of electromagnetic:

a. Bundle the cable connected to the work piece and the welding cable together.

b. Do not enwind partially or entirely your body with the cable.

c. Do not place yourself between the welding cable and the ground (work piece) cable, if the welding cable is by your

left side, then the ground cable should be by your left side too.

d. The Welding cable and the ground cable are as short as possible.

e. D

e. Do not work near to the welding power source.

9

Lifting equipment

: carton or wooden boxes package the welding machines supplied by Huayuan.

There is no lifting equipment in its wrapper. Users can move it to the prospective area by a fork-lift

truck, then open the box.

If there are rings, the machine can be transited by rings. While Huayuan Welding Machine

Manufacture reminds users, there is potential risk to damage the welding machine. So it is better to

push the welding machine by its rollers unless special situations.

Be sure that the appurtenances are all removed off when lifting.

When lifting, make sure that there is no person below the welding machine, and remind people

passing by at any moment.

Do not move the hoist too fast.

10

Noise

: Huayuan 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 equipment after doctor’s permission would help to keep healthy.

Summary of Contents for NB-500HK

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

Page 2: ...most importantly think before you act and be careful Special Attention Very Important AVOID FALLING DOWN WHEN THE WELDING MACHINE IS PLACED ON THE INCLINED PLANE IT S CAN NOT BE USED FOR UNFREEZING P...

Page 3: ...nd or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal 3 Fumes and Gases can be dangerous Welding may produce fumes and gases hazardous to health Avoid b...

Page 4: ...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 Whe...

Page 5: ...7 4 3 Welder and wire feeder connection 9 4 4 Gas cylinder and gas regulator connection 9 5 Operation 9 5 1 Pr operation and inspection confirmed items and methods and requirements 9 1 Preparation of...

Page 6: ...8 1 Maintenance 19 8 2 Repairing 19 9 Common faults and eliminating methods 20 10 Packing List 21 11 Annex 22 11 1 NB 500HK electrical schematic diagram 22...

Page 7: ...lding bridge steel structure project machinery etc 1 4 Working condition and environment If the following conditions are not met the welding performance may not meet the specifications of the technica...

Page 8: ...1 Main technical parameters Item Unit Model NB 500HK Input power V Hz 3 380 15 50 60 Rated input capacity kVA 26 Rated input current A 40 Rated output current A 500 Rated output voltage V 39 Rated ope...

Page 9: ...grade F Ingress protection IP21S Dimension L W H mm 640 290 580 Net weight kg 38kg Table 2 Main technical parameter 3 Panel and function 3 1 Front panel function Up panel function as follows figure 1...

Page 10: ...ent will directly affect the softness 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...

Page 11: ...to connect the wire feeder control cable 2 Welder output positive pole used to connect the wire feeder welding cable 3 Welder output negative used to connect the work piece connection cable 3 3 Rear...

Page 12: ...install a power switch when the welder is 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...

Page 13: ...ower supply for this product is three phase 380V AC 50 60Hz Users should use the corresponding distribution box air switch circuit breaker and power cord The selected distribution box and power cord m...

Page 14: ...8 Fig 4 Welder installation...

Page 15: ...ghten the fastening screw connect the gas pipe 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...

Page 16: ...tion in the welding place to prevent breathing in deleterious gas Welding current Under 100A 100A 300A 300A and above Photo protection degree No 09 No 10 No 11 No 12 No 13 No 14 Table 4 The selection...

Page 17: ...nd inspection confirmed items and methods requirements Step 1 Confirm that the wire feeding groove diameter of the wire feeding wheel is the diameter of the welding wire Otherwise the wire feeding whe...

Page 18: ...at the torch head Manual wire feed switch is shown in Figure 7 Fig 7 Wire feeder control box Step 8 Adjust the screw sleeve of the wire handle to make the pressing force appropriate The ideal pressin...

Page 19: ...upply state Waiting for a period of time the welding voltage appears and the slow wire feeding starts to enter the arcing state After the arc is successfully turned on the wire feeding speed becomes a...

Page 20: ...repeated short welding thin plate welding Press the button 2 step 4 step to 2 step Turn on the torch ON and start welding OFF torch then end welding 6 Weld condition example The reference value value...

Page 21: ...40 45 20 15 20 8 9 6 7 1 2 1 6 270 380 29 35 40 45 25 20 25 12 7 8 1 2 1 6 300 380 32 35 35 40 25 20 25 High speed condition 1 0 2 2 5 0 8 140 19 20 150 10 15 1 2 3 0 8 140 19 20 110 10 15 1 6 3 1 0...

Page 22: ...min 3 2 1 0 1 2 150 180 20 22 35 45 10 15 10 15 4 5 1 2 200 250 24 26 40 50 10 15 10 15 High Speed 2 3 3 2 1 2 220 24 150 15 25 300 26 250 15 25 Angle connector thin plate Low speed 1 6 0 8 65 75 16 1...

Page 23: ...1 1 2 0 0 5 110 120 19 19 5 45 50 10 10 15 2 3 1 1 2 0 5 1 120 130 19 5 20 45 50 10 10 15 3 2 1 1 2 1 1 2 140 150 20 21 45 50 10 15 10 15 4 5 1 1 2 1 1 5 170 185 22 23 40 50 15 15 6 Display 1 2 1 2 1...

Page 24: ...vice IGBT is the key inverter device The three phase AC power is transformer into 20KHz high frequency voltage after bridge rectified The high frequency voltage output welding voltage after transformi...

Page 25: ...o the usage and environmental conditions at least once a year to clean the internal dust with dry compressed air to prevent the dust from being damp and cause short circuit in the machine to cause mal...

Page 26: ...r PCB 3 Check and replace the damaged parts 5 Press torch switch wire wheel 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 diam...

Page 27: ...ctrode wire sticks out too long 7 The diameter of wire slot is not same as electrode wire 8 Something wrong with the shield gas 9 Wrong model of contact tip or the tip hole is damaged 10 Too much dirt...

Page 28: ...22 11 Annex 11 1 NB 500HK electrical schematic diagram...

Page 29: ...any change in the manual instruction forgive not to inform separately Chengdu Huayuan Electric equipment Co Ltd Address Wuhou National Science Park Chengdu China Postcode 610045 Telephone 0086 28 8574...

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