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•
With the torch in starting position, press the
control switch. After an initial gas purge (pre-
air), the pilot arc will come on and remain on
for 3 seconds until the cutting arc starts.
•
Once on, the main arc remains on as long
as the control switch is held down, unless the
torch is withdrawn from the work or torch
motion is too slow. Keep moving while cut-
ting. Cut at a steady speed without pausing.
Maintain the cutting speed so that the arc lag
is about 30° behind the travel direction. Fig.
17. If the cutting arc is interrupted, and the
torch trigger is still pressed, the pilot arc co-
mes back on automatically for 3 seconds.
Figure 17
•
To shut off the torch simply release the control
switch. When the switch is released a post-
flow will occur. If the torch trigger is pressed
during the post-flow, the pilot arc will restart.
PIERCING WITH A HAND TORCH
Note: Recommended maximum piercing
capacity depends on the torch and on the
cutting current of the cutting unit. Refer to
the torch specification sheet provided with
the cuttig unit. If necessary to make a cut
on a metal sheet with a tickness more than
the maximum piercing capacity without
an edge start, make a hole ø 6mm at least
using an electric drill to start cutting.
•
When piercing with a hand torch, tip the torch
slightly.
Figure 18
•
Complete the pierce off the cutting line and
then continue the cut onto the line. Hold the
torch perpendicular to the workpiece after the
cut is complete. Fig.19
Figure 19
•
Clean spatter and scale from the shield cup
and the tip as soon as possible.
GRATES CUTTING
•
Select the automatic pilot arc mode with the
selection key (A) in the control panel.
GOUGE
•
Select the gouge mode with the selection key
(A) in the control panel.
•
Hold the torch with torch tip within 1.5 mm
from the workpiece.
•
Hold the torch at a 45° angle
workpiece. Press the trigger to obtain a pilot
arc. Transfer the arc to the workpiece.
•
Pull the torch back by keeping a 45° angle
with the workpiece and a certain distance
between the torch tip and the molten metal to
avoid consumable life reduction or damage
to the torch.
Changing the torch's angle changes the di-
mensions of the gouge.
•
The gouge profile may vary in accordance with:
1.
speed of the torch over the workpiece
2.
the torch-to-work standoff distance
3.
the angle of the torch to the workpiece
4.
the adjusted current output.
•
To increase width:
-
Increase the standoff and/or the current.
-
Decrease the speed and/or the angle.
•
To decrease width:
-
Increase the speed and/or the angle.
-
Decrease the standoff and/or the current
•
To increase depth:
-
Decrease the speed and/or standoff.
-
Increase the current and/or the angle.
•
To decrease depth:
-
Decrease the current and/or the angle.
-
Increase the speed and/or standoff.
CUTTING WITH CNC
•
Select the CNC mode with the selection key
(A) in the control panel.
•
Follow indications at paragraph "Connection
of the machine to a CNC"
•
Since the equipment with mechanized torch
can be used with different cutting tables, for the
operations in such configuration it is necessary
to consult the manufacturer's instructions.
WARNING
Disconnect primary power at the source
and wait that the torch has cooled before
disassembling the torch or torch leads.
EN-12
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