Tweco A40-A60 CutMaster - Manual (Page 40)

CUTMASTER A40, A60
OPERATION Manual 0-5120 4T-6
4. Keep the torch in contact with the workpiece
during the cutting cycle.
5. Hold the torch away from your body.
6. Slide the trigger release toward the back of the
torch handle while simultaneously squeezing
the trigger. The pilot arc will start.
A-02986
Trigger
Trigger Release
7. Bring the torch within transfer distance to the
work. The main arc will transfer to the work,
and the pilot arc will shut off.
NOTE
The gas preflow and postflow are a character-
istic of the power supply and not a function of
the torch.
3
4
Art # A-03383
Trigger
2
1
Trigger Release
8. Cut as usual. Simply release the trigger as-
sembly to stop cutting.
9. Follow normal recommended cutting practices
as provided in the power supply operator's
manual.
NOTE
When the shield cup is properly installed, there
is a slight gap between the shield cup and the
torch handle. Gas vents through this gap as part
of normal operation. Do not attempt to force the
shield cup to close this gap. Forcing the shield
cup against the torch head or torch handle can
damage components.
Piercing With Hand Torch
1. The torch can be comfortably held in one hand
or steadied with two hands. Position the hand
to press the Trigger on the torch handle. With
the hand torch, the hand may be positioned
close to the torch head for maximum control
or near the back end for maximum heat pro-
tection. Choose the technique that feels most
comfortable and allows good control and
movement.
NOTE
The tip should never come in contact with the
workpiece except during drag cutting opera-
tions.
2. Angle the torch slightly to direct blowback
particles away from the torch tip (and operator)
rather than directly back into it until the pierce
is complete.
3. In a portion of the unwanted metal start the
pierce off the cutting line and then continue the
cut onto the line. Hold the torch perpendicular
to the workpiece after the pierce is complete.
4. Hold the torch away from your body.
5. Slide the trigger release toward the back of the
torch handle while simultaneously squeezing
the trigger. The pilot arc will start.