6932200010
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FRONT PANEL DESCRIPTION
1 Protection alarm led
2 Excess temperature led
3 Air presence led
4 Machine live led
5 Cutting current regulation
6 RESET button
7 ON-OFF switch
8 Manual/automatic switch
9 Air test button
STARTING UP
The operator may start up the machine only after
having read and understood all parts of this
manual. Depending on the type of cut to be
performed he must follow the work phases
described below.
1- Ensure that the work environment and your
clothing satisfy the safety requirements described.
2- Position the Inverter in a place where there is no
obstruction to air circulation.
3- Connect the THOR to a suitable power socket
(an earthed socket is obligatory).
4- Connect the compressed air pipe to the air filter
on the rear panel.
5- Ensure that there is no water in the filter. If
necessary, empty the filter.
For the instructions below, refer to the details :
- With the potentiometer for regulating the output
current (5), set a suitable value for the thickness
that is to be cut, in agreement with the line
capacity.
- Turn the switch on the front panel (7).
- the green led (4) will light up (machine live).
- the green led (3) will light up to indicate the
presence of compressed air in the air circuit.
- The red Led (1) is illuminated.
ATTENTION press the RESET button (6)
- The red Led (1) switches off (1)
- When the yellow Led (3) is off it means that the
THOR working temperature is within normal
values.
- With the TEST GAS button (9) check that the
pressure of the compressed air has been correctly
set.
- Connect the positive cable (Earth Clamp) firmly to
the piece to be cut. (N.B.: do not attach the clamp
to the part of material that will be cut off).
- The Inverter is now ready for work. When you
want to start, position the torch on the work-piece
to be cut and press the button on the torch.
- Now the arc is transferred to the work-piece to be
cut. Move the torch in the desired direction at a
speed that ensures a good cutting quality.
-When the cut is finished, release the torch button
to stop the arc; air will continue to flow out for 15
seconds to cool the torch parts.
CUTTING:
-Do not freely or unnecessarily ignite the pilot arc
when not cutting! This action considerably
reduces the life of the nozzle.
-Start cutting from the edge of the work- piece, until
you manage a perforation.
-Ensure that, during cutting, the sparks fall away
from the bottom of the work-piece. If sparks or
dross come out at the top it means that the torch is
being moved too fast or that there is not the
necessary power to perforate the work-piece.
-Keep the torch in a vertical position and observe
the arc along the cutting line. By dragging the torch
lightly on the work-piece you can keep the cut
regular.
-When cutting thin materials, reduce the power to
give optimum cutting quality.
PIERCING:
- Hold the torch at a distance of approximately 1
mm. from the work-piece before pressing the torch
button. This distance will prolong the life of the
nozzle and other parts.
- Start cutting at a slight angle rather than with the
torch in a vertical position. This allows the molten
material to come out at one side instead of spitting
back towards the nozzle, thus protecting the
operator against sparks and increasing the life of
the nozzle.
- Hold the torch facing away from your body and
bring it slowly into the vertical position. (This is
important when cutting thick gauges). Ensure that
the torch is pointed away from you and from
anyone else in the vicinity, to avoid damage
caused by sparks of molten metal.
- When the pierced hole has been completed,
carry on with cutting.
COMMON MALFUNCTIONS DURING CUTTING:
The work-piece is not completely perforated.
The causes may be:
− The current is too low.
− The cutting speed is too fast.
− The torch components are worn.
− Incorrect torch angle
- The piece to be cut is too thick.
Presence of waste material on the bottom of the
cut.