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17
MAINTENANCE
b). For standoff cutting, hold the torch tip on the
work piece, pull the trigger. After the arc is
initiated lift the tip to 3-4mm off the work
(Fig.5).
c). Cut as usual. Simply release the trigger
assembly to stop cutting. A period of
post-flow time 45 to 75 seconds (required for
torch cooling) will follow. Do not disconnect
air until this cooling period has been
completed. Failure to do this will result in torch
head damage.
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.
DRAG CUTTING WITH A HAND TORCH
Drag cutting works best on metal 8 mm thick or
less.
Note: For best parts performance and life, always
use the correct parts for the type of operation.
a). Install a drag cutting tip and set the output
current.
b). 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 comfortable and allows good control
and movement.
c). Keep the torch in contact with the workpiece
during the cutting cycle.
d). Hold the torch away from your body.
e). Squeeze the trigger. The arc will start.
f). Place the torch tip on the work. The main arc
will transfer to the work.
g). Cut as usual. Simply release the trigger
assembly to stop cutting.
AFTER CUTTING OPERATION HAS
FINISHED
1. Release the torch trigger. Main arc stops.
2. Set the power supply ON / OFF switch to OFF
position.
3. Set the main power disconnect to OFF, or
unplug input power cord.
Fig. 5
Torch
Protective
sleeve
Standoff
Distance
3-9mm
Содержание PLASMA-40
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