background image

TROUBLESHOOTING

SYMPTOMS

REASON

RECOMMENDED ACTION

Cooling fan does not operate when
turn on the power switch.

Input voltage fail.

Broken Fuse(5A).

Broken Power switch.

Broken Cooling fan.

Verify input voltage.

Replace Fuse(5A).

Replace Power switch.

Replace Cooling fan.

Welding
wire does
not go out
from wire
feeder.

Welding wire does not
go out when press the
inching switch of wire
feeder.

Broken Fuse(10A).

Wire feeding cable does not connected perfectly.

Broken motor of wire feeder.

Broken Control PCB.

Replace Fuse(10A).

Reconnect Wire feeding cable

of torch.
Replace Motor of wire feeder.

Replace Control PCB.

Wire feeding has no
problem when press
the inching switch, but
Welding wire does not
go out from wire
feeder when press the
torch switch.

Torch switch connector does not

connected

perfectly.

Broken Torch switch.

Broken Control PCB.

Reconnect Torch switch

connector.

Replace Torch.

Replace Control PCB.

Gas does
not flow
from torch

Gas does not flow
from torch when switch
is "GAS CHECK"
position.

Close the valve of gas tank.

Broken Gas check switch.

Open the valve of gas tank.

Replace Gas check switch.

Gas does not flow
from torch when press
the torch switch.

Torch switch connector does not connected

perfectly.

Broken Torch switch.

Broken Control PCB.

Reconnect Torch switch

connector.
Replace Torch.

Replace Control PCB.

Gas flows continuously at "WELDING"
position of GAS CHECK switch.

Broken GAS CHECK switch.

Broken Torch.

Broken Control PCB.

Replace GAS CHECK switch.

Replace Torch.

Replace Control PCB.

Fail to adjust the welding voltage and
current on the wire feeder.

Remote control connectors of wire feeder does

not connected perfectly.
Broken Volume Knob.

Broken Control PCB.

Reconnect Remote control

connectors of wire feeder.
Replace Volume Knob.

Replace Control PCB.

Arc does not started.

Broken Torch cable.

Torch switch connector does not connected

perfectly.
Work cable does not connected perfectly.

Broken Torch.

Broken Control PCB.

Repair Torch cable.

Reconnect Torch switch

connector.

Reconnect Work cable.

Replace Torch.

Replace Control PCB.

Crater does not work.

Broken Crater select switch.

Broken Control PCB.

Contact our service center

If all recommended action have been checked and the problem persists, please contact our


service center

Summary of Contents for 350LC2

Page 1: ...INVERTER CO2 MAG WELDER 350LC2 500LC 600LC2 OPERATION MANUAL DO NOT INSTALL OPERATE OR MAINTAIN THIS MACHINE WITHOUT READING THIS MANUAL AND PLEASE ALWAYS THINK BEFORE YOU ACT www worldwel com...

Page 2: ...al ammeter and voltmeter during welding ITEM UNIT 350LC2 500LC 600LC2 Input Voltage V 220V 380V 440V Single Phase Three Phase Frequency Hz 50 60 Rated Output Current A 350 500 600 Input Capacity rated...

Page 3: ...of contact with the work or ground and watch for fire Turn off input power using the disconnect switch at the fuse box before working on the equipment Frequently inspect input power cord for damage o...

Page 4: ...or other alternate circuits This can create fire hazards or overheat lifting chains or cables until they fail INSTALLATION The welding machine shall be installed at a place free from the inflammables...

Page 5: ...ont of the machine Connect the work cable to the METAL terminal To connect the Wire feeder connect a electrode cable from wire feeder to the TORCH terminal and a Remote control cable from the wire fee...

Page 6: ...MIG MAG STICK WELDING...

Page 7: ...ill not supply power at the output 4 Ammeter indicates the welding current 5 Voltmeter indicates the welding voltage 6 Crater Voltage Volume Adjust the crater voltage 7 Crater Current Volume Adjust th...

Page 8: ...Press and hold the torch switch the arc is started at the welding current At this time release the torch switch the arc is not stopped When finish to weld press and hold the torch switch the output c...

Page 9: ...ch to Auto or Individual Turn on the power switch of machine and then verify that the cooling fan is running Position the GAS CHECK switch to GAS CHECK and adjust the volume of flowing gas by the gas...

Page 10: ...ank Broken Gas check switch Open the valve of gas tank Replace Gas check switch Gas does not flow from torch when press the torch switch Torch switch connector does not connected perfectly Broken Torc...

Page 11: ......

Page 12: ......

Page 13: ...Fuse Power 5A 1 10 Fuse Moter 10A 1 10 Fuse Back 3A 1 11 MF Condensor 10 800V 2 12 MF Condensor 15 800V 4 13 Condensor 2200UF 400V 2 14 Cap Switch SZW6 63 1 15 Terminal 6M M 1 16 Plug HS 002 110V 1 17...

Page 14: ......

Page 15: ......

Page 16: ...1 10 Fuse Power Back 5A 2 10 Fuse Moter 10A 1 11 MF Condensor 10 800V 2 12 MF Condensor 20 800V 4 13 Condensor 2700UF 400V 2 14 Cap Switch SZW6 63 1 15 Terminal 6M M 1 16 Plug HS 002 110V 1 17 FAN 120...

Page 17: ......

Page 18: ......

Page 19: ...78 1 11 Fuse Power Back 5A 2 11 Fuse Moter 10A 1 12 MF Condensor 10 800V 2 13 MF Condensor 20 800V 4 14 Condensor 2700UF 400V 2 15 Cap Switch SZW6 63 1 16 Terminal 6M M 1 17 Plug HS 002 110V 1 18 FAN...

Page 20: ...ed Where Purchased Where you use Whenever you request replacement parts or information on this machine always supply the information you have recorded above The date number is especially important whe...

Reviews: