STAMOS S-PLASMA 55H Manuel D'utilisation page 43

INITIATING OPERATION
A. Unpacking
Unpack all the items out of the box and make sure that you have received all items
listed on the packing list.
B. Work environment
Make sure that the work area is well ventilated. The unit is cooled by an axial fan that
provides an air flow for the electronics through the rear panel. (Note! The housing
must be installed in a way that ensures that the vent holes are closer to the front of the
machine). At least 15 cm at the front and 15 cm on each side should be left to enable
cleaning. If the machine is operated without adequate cooling, the length of the duty
cycle will be reduced greatly.
C. Cable connections
Each unit is equipped with a main power cable, which is responsible for providing cur-
rent and voltage to the device. If the device is connected to power which exceeds the
required voltage, or if the wrong phase is set, it may lead to severe damage to the unit.
This is not covered by the warranty for the equipment and the user will be responsible
for such situations.
D. Torch connection
Connect the torch to the inverter by connecting the air tube that is attached at the
end of the torch to the torch connector on the front part of the machine. Ensure that
the connection is secure by tightening it slightly with a spanner. However you should
not make it too tight.
Pilot Assembly
A. Assembling the pistol
Put the pistol the protective cap facing up and turn the cap away from the gun. (The
protective cap holds the tip, the ceramic swirl ring and the electrode together). Re-
move the cap, the ceramic swirl ring and the electrode. Assemble the electrode, the
ceramic swirl ring and the tip back together. Replace worn parts if necessary. Put the
protective cap on the head of the pistol and screw it on with your hand until it is snug.
If any resistance is present during this process, check the thread and the arrangement
of the items before resuming work. Note: In case of some pistols with no reversible
electrodes it is necessary to tighten the electrode further by using a pair of pliers in
order to ensure a reliable electrical connection.
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INSTRUCTIONS FOR USE
A. The beginning
Turn the power switch to „ON". Take up a position at the unit in which you can easily
read the air pressure from the device. Press the pistol switch (air will flow out from the
pistol), adjust the air valve to approximately 6-7 (bar) and press the pistol switch again.
Note
The generally accepted value range of air pressure is 5-8 bar. You can now perform
tests as needed, but you should remember not to reduce the air pressure too much
because it may damage the consumables. Secure the grounding clamp on the workpi-
ece. Connect the clamp to the main part of the workpiece and not to part which is to
be removed.
B. Cutting
1. Drag-cutting
Hold the tip of the pistol above the workpiece, press the pistol switch and move the pi-
stol tip until it comes into contact with the workpiece and the cutting arc is established.
Once the cutting arc is generated you may move the pistol in the desired direction with
the tip of the pistol always at a slight angle and maintaining contact with the workpiece.
This working method is called drag cutting. Excessively rapid movements should be
avoided. A sign of this are sparks, which can spray from the top of the workpiece. Move
the pistol with a speed that ensures gathering of the sparks under the workpiece and
before proceeding make sure that the material is cut through completely. Set the drag
speed as required.
2. Weekly activities
Verify the proper operation of the air flow. Blow off or suck in dust or dirt from the
entire machine, including the air filter.
3. Distance cutting
In some cases it may be advantageous to perform cutting with the tip of the pistol at
a height of approximately 1/16" to 1/8" above the workpiece in order to reduce the
amount of material which is once again blown back into the tip and to maximize the
penetration of thick cuts through the material. Distance cutting should be used when
penetration cutting or or grooving is executed. The distance technique may also be
used when cutting sheet metal in order to minimize the risk of material back splashing,
which could damage the tip.
4. Drilling through
In order to drill through the tip of the pistol should be placed at approximately 3,2 mm
above the workpiece. Hold the pistol at a slight angle to deflect the sparks away from
yourself and the tip of the pistol. Activate the main arc and lower the tip of the pistol
until the main cutting arc is initiated and sparking begins. Initiate drilling on a test item
which is no longer in use and continue with the drilling on the previously defined cut
line once the test hole is completed without problems.
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