C
ONNECTING
THE
W
ELDING
P
OWER
S
OURCE
C
ONNECTION
C
HAPTER
4
39
Chapter 4
Connection
4.2.7
Connection of shield gas
This section explains the procedure for connecting the shield gas. Refer also to the instruction manual of wire feeder.
1.
Before mounting the gas flow meter, open and close the valve of the gas cylinder, and blow off the dust at the
connections.
2.
Attach the gas regulator to the gas cylinder.
3.
Connect the gas hose to the gas regulator and the wire feeder.
●
For TIG welding, connect the gas hose to the welding torch for TIG welding.
Connection for shield gas is complete.
In using the air-cooled welding torch, continue to perform the step described in "4.3
-
Grounding and Connection of Input
•
Be sure to observe the following points to prevent from suffocation due to gas leakage
or explosion.
– Be sure to turn off the shield gas at the main tap when the welding power source is
not in use.
– Securely connect the gas hose and attach the gas regulator with a wrench so that
there is no gas leakage.
•
For the gas regulator, make sure to use a device for compressed gas cylinder that
conforms to the specific application of the shield gas.
Using an inappropriate gas regulator may cause explosion.
•
Keep the cylinder upright and securely chained to a stationary support or a rack.
Falling or tipping of cylinder may cause serious injury.
•
After five seconds have passed, the voltage is automatically provided.
Gas supply inlet
Gas regulator
Gas cylinder
Wire feeder
Gas cylinder
Gas hose
