CIGWELD WeldSkill 200AC/DC, Service Manual

Page: 35 / 88

OPERATION WELDSKILL 200AC/DC INVERTER
Manual 0-5206 4-13 Operation
2. To reduce flow rate, allow the welding grade shielding gas to discharge from regulator by opening the
downstream valve. Bleed welding grade shielding gas into a well ventilated area and away from any
ignition source. Turn adjusting screw counterclockwise, until the required flow rate is indicated on the
gauge. Close downstream valve.
Shutdown
Close cylinder valve whenever the regulator is not in use. To shut down for extended periods (more than 30
minutes).
1. Close cylinder or upstream valve tightly.
2. Open downstream equipment valves to drain the lines. Bleed gas into a well ventilated area and away
from any ignition source.
3. After gas is drained completely, disengage adjusting screw and close downstream equipment valves.
4. Before transporting cylinders that are not secured on a cart designed for such purposes, remove
regulators.
4.06 Setup for TIG (GTAW) Welding
A. Select Lift TIG or HF TIG mode with the process selection control (refer to Section 4.01.7 for further
information).
B. Connect the TIG Torch to the negative welding terminal (-). Welding current flows from the power source
via heavy duty bayonet type terminals. It is essential, however, that the male plug is inserted and turned
securely to achieve a sound electrical connection.
C. Connect the work lead to the positive welding terminal (+). Welding current flows from the Power Source
via heavy duty bayonet type terminals. It is essential, however, that the male plug is inserted and turned
securely to achieve a sound electrical connection.
CAUTION
Loose welding terminal connections can cause overheating and result in the male plug being fused
in the bayonet terminal.
D. Connect the TIG torch trigger switch via the 8 pin socket located on the front of the power source as shown
below. The TIG torch will require a trigger switch to operate in Lift TIG or HF TIG Mode.
NOTE
If the TIG torch has a remote TIG torch current control fitted then it will require to be connected to
the 8 pin socket. (Refer to section 3.08.2 Remote Control Socket for further information).
E. Fit the welding grade shielding gas regulator/flowmeter to the shielding gas cylinder (refer to Section
4.05) then connect the shielding gas hose from the regulator/flowmeter outlet gas INLET on the rear of
the WeldSkill 200 AC/DC Power Source. Connect the gas hose from the TIG torch to the gas OUTLET on
on the front of the WeldSkill 200 AC/DC Power Source.
!
WARNING
Before connecting the work clamp to the work make sure the mains power supply is switched off.
Secure the welding grade shielding gas cylinder in an upright position by chaining it to a suitable
stationary support to prevent falling or tipping.