Weco WF-104, Instruction Manual, Page: 65 / 96

WELD THE WORLD
Cod. 006.0001.0940
16/04/2018 V.2.25
WF-104
WF-108
65
ENGLISH
12 TORCH TRIGGER MODES
12.1 2T MIG/MAG WELDING
1. Bring the torch up to the workpiece.
2. Press (1T) and keep the torch trigger pressed.
The wire advances at the approach speed until making contact with the material. If the arc does
not strike after 10 cm wire protrusion, wire feeding is locked and the welding unit outputs are de-
energized.
The arc strikes and the wire feeder accelerates to the set feed rate value.
3. Release (2T) trigger to start the weld completion procedure.
Gas flow continues for the time set in the post gas parameter (adjustable time).
12.2 2T SPOT MIG/MAG WELDING
1. Bring the torch up to the workpiece.
2. Press (1T) and keep the torch trigger pressed.
The wire advances at the approach speed until making contact with the material. If the arc does
not strike after 10 cm wire protrusion, wire feeding is locked and the welding unit outputs are de-
energized.
The arc strikes and the wire feeder accelerates to the set feed rate value.
The welding procedure continues, at the preset current, for the time set with the spot time parameter.
The welding completion procedure starts.
The arc is extinguished.
Gas flow continues for the time set in the post gas parameter (adjustable time).
12.3 4T MIG/MAG WELDING
1. Bring the torch up to the workpiece.
2. Press (1T) and release (2T) the torch trigger.
The wire advances at the approach speed until making contact with the material. If the arc does
not strike after 10 cm wire protrusion, wire feeding is locked and the welding unit outputs are de-
energized.
The arc strikes and the wire feeder accelerates to the set feed rate value.
3. Press (3T) the trigger to start the weld completion procedure.
Gas flow continues until the torch trigger is released.
4. Release (4T) the torch trigger to start the post gas procedure (adjustable time).
12.4 4T B-LEVEL MIG/MAG WELDING
1. Bring the torch up to the workpiece.
2. Press (1T) and release (2T) the torch trigger.
The wire advances at the approach speed until making contact with the material. If the arc does
not strike after 10 cm wire protrusion, wire feeding is locked and the welding unit outputs are de-
energized.
The arc strikes and the wire feeder accelerates to the set feed rate value.
During normal speed welding, press and immediately release the torch trigger to switch to the
second welding current.
The trigger must not be pressed for more than 0.3 seconds; otherwise, the weld completion stage
will start.