HUAYUAN LGK-63/100MA Operator's Manual
LGK-63/100MA
I G B T INVETER AIRPLASMACUTTING
MACHINE
OPERATOR’SMANUAL
(PLEASEREADITCAREFULLY BEFOREOPERATION)
info@westweld.com
Chengdu Huayuan Electric Equipment Co.,Ltd LGK-40/63/100IGBT OPERATOR’S MANUAL
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Safety Depends on You
HUAYUAN arc welding and cutting equipments are designed and built with ample safety consideration. However, proper installing
and operating can ensure your safety.
DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT CASUALLY WITHOUT READING THIS MANUAL
THROUGHOUT.
Special Notes (Very Important):
1. Pay attention to avoiding the machine falling down when it is placed on the gradient ground.
2. It is forbidden to unfreeze the pipeline by the cutter.
3. The shield rank of this series of cutter is IP21S, so working in rain is not suitable.
4．The cutter has external static characteristic with rated duty cycle 60%, which means the machine can work 6 minutes and rest 4
minutes at the rated cutting current in 10 minutes. The machine has the function of thermal protection. When the internal temperature
exceeds a set temperature, thermal protection moves on and the abnormity indicator lamp on the panel turns ON, then there is no output
in cutter. The machine can become normal and work only after the internal temperature drops down and the abnormity indicator lamp
on the panel turns OFF.
Purchase Date：___________________________
Serial Number: ____________________________
Machine Model：__________________________
Chengdu Huayuan Electric Equipment Co.,Ltd LGK-40/63/100IGBT OPERATOR’S MANUAL
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Cautions
Arc and arc rays can hurt.
All performing welding workers ought to have health qualification from the authority
organization to prevent you and others from arc radiation and burn. It should be
prevented for children to enter into dangerous area as well.
Be careful reading the following important items and the welder safety byelaw from the
authority organization. Be sure that qualified professionals perform all installation,
maintenances and repair procedures.
1.Electric shock：The welding circuits are not insulated when welding. If you touch the two output
electrodes of the machine with your bare skin at the same time, it will lead to electric shock,
sometimes even fatal dangers. Users need to follow the items below to avoid electric shocks:
If possible, lay some insulating materials, which are dry and large enough, in your working field. Otherwise, use
the automatic or semiautomatic welding machine, DC welding machine as possible as you can.
Components in the automatic and semiautomatic welding machine such as the welding wire reel, feed wheel,
contact tip and welding head are all electric components. .
Always be sure the machine has been connected perfectly to the work piece with the work cables and should be
as close as possible to the working area.
The work piece should be grounded perfectly.
Make sure that the insulating material of the electrode holder, the grounding clamp, the welding cable and the
welding head are not affected by damp, mildewed or spoilt, and be replaced momentarily.
Never dip the electrode in water for cooling.
Never touch electric components of two welding machines at the same time, because this voltage is supposed to
be two times of welding voltage while the grounding mode is not clear.
While working high above the ground or other places having the risk of falling, please be sure to wear safety
belt to avoid losing balance caused by electric shock.
2 Arc：Use an arc welding mask to protect your eyes and skin from sparks and the rays of the arc,
pay special attention to the filter glass, which must be conformable to the national standard.
Use clothing made from durable flame-resistant material or sailcloth to protect your skin from hurting by the arc
rays.
Remind other nearby personnel before working lest arc rays hurt them by accident.
3 Fumes and Gases：Welding may produce fumes and gases hazardous to health. Avoid breathing
these fumes and gases. While working in limited room, use enough ventilation and/or exhaust to
keep fumes and gases away from the breathing zone, or use the respirator. Do not weld at the same
time when using of degreasing, cleaning or spraying operations. The heat and rays of the arc can react with these
gases to form phosgene, a highly toxic gas,
Some protective gases used in welding might displace the oxygen in the air, and can lead to hurt or even death.
Read and understand the manufacturer’s instructions for this equipment, and validate the health certification of
consumptive materials, make sure they are innocuous.
Chengdu Huayuan Electric Equipment Co.,Ltd LGK-40/63/100IGBT OPERATOR’S MANUAL
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4 Spatter：Spatter can cause fire or explosion.
Remove fire hazards from the welding area. Remember that spatter from welding can easily go
through small cracks and touch fire hazards. Protect all kinds of lines going though welding area, including hydraulic
lines in the wild.
Where compressed gases are to be used in the field, special precautions should be used to prevent explosion.
When welding stops, make certain that no live part is touching the work piece or the work stage. Accidental
contact can create a fire hazard.
Do not weld containers or lines, which are not proved to be innocuous.
It is very dangerous to heat, cut or weld tanks or containers at entry holes. Does not start work until the proper
steps have been taken to insure that there is no flammable or toxic gas.
Spatter might cause burn. Wear leather gloves, heavy shirt, cuffless trousers, high shoes and a cap over your hair
to prevent from burning by spatter. Wear the ear shield when performing sideways or face up welding. Always wear
safety glasses with side shields when being in a welding area.
The welding cables should be as close to the welding area as possible, and the short, the better. Avoid welding
cables going through the building framework, lifting chains, AC or DC cables of other welding machines and
appliances. The welding current is strong enough to damage them while having short circuit with them.
5 Cylinder：Damage of it might cause explosion.
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.
Make sure that the installation of cylinder is by the wall and bundled tightly by a chain.
Be sure to put the cylinder in the working space with no crash or shake, and far from welding area.
It is forbidden to touch cylinder with the welding clamp or the work cables.
Avoid facing the cylinder while installing the decompression flow-meter or the gasometer.
When not working, please tighten the valve.
6 Power： (For electrically powered welding and cutting equipment) Turn off input power before
installation, maintenances and repair, so that avoid accident.
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.
Chengdu Huayuan Electric Equipment Co.,Ltd LGK-40/63/100IGBT OPERATOR’S MANUAL
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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 having to dismantle some parts of the device during maintenance, but must keep safety awareness
strongly every time.
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, so 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. Do not work near to the welding power source.
9 Lift 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, and then open the box.
If having rings, the machine can be transited using rings. While HUAYUAN Welding Machine Manufacture
reminds users, there is possible risk to damage the welding machine. It is better to push the welding machine moving
in use of 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 with doctor’s permission would help to keeping healthy.
Chengdu Huayuan Electric Equipment Co.,Ltd LGK-40/63/100IGBT OPERATOR’S MANUAL
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CONTENTS
Summary -----------------------------------------------------6
Safety and Attention ----------------------------------------6
Work Environment Requirements-------------------------7
Technical Parameters----------------------------------------7
Working Principles------------------------------------------8
Panel and Functions----------------------------------------9
Installation and Operation --------------------------------10
Maintenance-------------------------------------------------13
Cutting Technology Instruction---------------------------13
Troubleshooting and Repair-------------------------------15
Accessories--------------------------------------------------16
Appendix: Electric Diagram ------------------------------17
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