Tweco 82 PlazMaster - Manual (Page 37)

PLAZMASTER 82
Manual 0-5096 4T-5 OPERATION
Drag Cutting With a Hand Torch
Drag cutting works best on metal 1/4" (6 mm) thick
or less.
NOTE
For best parts performance and life, always
use the correct parts for the type of operation.
1. Install the drag cutting tip and set the out-
put current.
2. 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 protection. Choose the
holding technique that feels most comfort-
able and allows good control and move-
ment.
4. Keep the torch in contact with the work-
piece 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
assembly 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 protection. 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 op-
erator) rather than directly back into it until
the pierce is complete.