Tweco 15XC Merlin - Manual (Page 51)

Manual 0-2251 4-17 OPERATION
Hand Torch Operation
(continued)
2. To positively locate the line of the cut, position the torch
over the workpiece, resting the front edge of the shield
cup on the edge where the cut is to start.
3. Lower the welding helmet. Press and hold the torch
control switch. After a two second gas purge, the pilot
arc will start. The pilot arc will stay on as long as the
torch control switch is held.
4. With the pilot arc on the main cutting arc is established
as soon as the torch is brought within 1/8 - 3/8 in
(3 - 10 mm) of the workpiece. If the cutting arc is inter-
rupted and the switch is still pressed, as when cutting
expanded metal, the pilot arc will automatically restart.
Releasing the torch control switch will shut off either the
pilot or main arc (depending on the mode of operation).
5. Cut with the torch held 1/8 - 3/8 in (3 - 10 mm) from
the work. The torch should be held perpendicular to the
workpiece while cutting.
Use a standard ceramic or metal shield cup for hand
cutting. The touch cup (short shield cup) and gouging cup
are NOT intended for hand cutting. Do not allow an
exposed torch tip to contact the workpiece.
NOTE
4.6 HAND TORCH OPERATION (continued)
CAUTION