Weco WF-104, Instruction Manual, Page: 67 / 96

WELD THE WORLD
Cod. 006.0001.0940
16/04/2018 V.2.25
WF-104
WF-108
67
ENGLISH
5. Release the torch trigger a second time (4T) to close the weld and run the post gas procedure.
12.8 4T B-LEVEL - 3 LEVEL MIG/MAG WELDING
The welding process is the same as the 4T - 3 LEVELS process except that during normal speed
welding pressing and immediately releasing the torch trigger switches the unit to the second weld -
ing current.
The trigger must not be pressed for more than 0.3 seconds; otherwise, the weld completion stage
will start.
When the trigger is pressed and released immediately, the system returns to the welding current.
1. Press (3T) trigger and keep it pressed to start the crater filler procedure.
The weld is closed in the same way as with the 4T - 3 LEVELS process.