OTC Welbee M350 II, Owner'S Manual, Page: 56 / 148

P
ERFORMING
W
ELDING
O
PERATION
W
ELDING
O
PERATION
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This section explains the supply stop procedure of power/shield gas after the welding end.
1.
Close the main tap of the shield gas.
2.
Press the GAS CHECK key.
B
The LED of the GAS CHECK key lights up, and the shield gas remained in the gas piping is discharged.
3.
After the shield gas is discharged, press the GAS CHECK key.
B
The LED of the GAS CHECK key lights off, to stop gas check.
4.
Set the flow adjustment knob to “SHUT", to adjust the shield gas flow rate to zero.
5.
Turn OFF the power switch of the welding power supply.
B
The power LED switch lights off.
6.
Shut off the input power.
● Operate the disconnect switch to shut off the input power.
OFF
SHUT
Input power supply
Shut off
Cover
Power switch
Main valve
Flow rate
adjustment knob
GAS CHECK key
Welding power
source
Welding power
source