PATON
VDI-SERIES PRO
DC MMA/TIG/MIG/MAG
-19-
4. ARGON ARC WELDING PROCESS (TIG)
WARNING!
As a protective gas, such inert gas as argon (Ar), sometimes
helium (He), or a gas mixture, such as 40 % Ar + 60 % He, is used.
Do
not use combustive gases.
The use of other gases is allowed only by
agreement with the manufacturer of the welding unit.
4.1. PREPARING THE WELDING UNIT FOR OPERATION
1.
Connect the power cable of the argon gas torch to connector socket B (-).
2.
Connect the grounding cable to connector socket A (+).
3.
Connect the grounding cable to the workpiece.
4.
Connect the pressure reducer to the fitting of the cylinder with protective gas.
5.
Connect the hose from the welding torch to the pressure reducer of the gas cylinder.
6.
Open the shut-off valve of the gas cylinder. Check the tightness of the connection
with the gas cylinder.
7.
Connect the power cable of the welding unit to the outlet of the power supply
system.
8.
Set switch 7 on the rear panel of the welding unit to position I (switching on).
9.
Press button 5 and hold it not less than 5 s to select the argon arc welding process
(TIG).
The display of the welding unit will blink, warning the operator that the
unit is ready to switch to the next welding process. If the argon arc welding process
has been missed during the selection, press and hold button 5 again for sequentially
selecting the welding process required.
10.
Set the specified welding current by buttons 3.
If required, perform the additional functions specified for the argon arc welding process (see
Section 6.1).
ARGON
WELDING
TORCH
GROUNDING CLAMP
~230V
ARGON
WORKPIECE
