Cebora Plasma Prof 35 Manual De Instrucciones página 8

INSTRUCTION MANUAL FOR PLASMA CUTTER
IMPORTANT
Before using this device all people authorized to use, repair or
control, should read the following instructions of safety and
use.
Remember: YOUR SAFETY DEPENDS ON YOU!!!
Follow all safety rules and instructions.
It is your job to protect yourselves and others against the risks
related to cutting.
Operator is responsible for his own safety and the safety of
others in the work area. He must know all safety rules and obey
them.
NOTHING CAN REPLACE GOOD COMMON SENSE!!!
Always use original spare parts so as to ensure the safety
of unit and torch.
BASIC SAFETY PRECAUTIONS
ELECTRIC SHOCK
Electric shock can kill. All electric shocks are
potentially fatal.
This plasma cutter requires high voltages for arc spark starting
(approx. 250 " 300 V). The following safety rules must be
therefore observed when using the unit:
• Do not touch live parts.
• Insulate yourselves from the piece to be cut and from earth by
wearing insulating gloves and clothing
• Keep your clothing (gloves, shoes, hats, dresses) and body
dry
• Do not work in humid or wet areas
• Avoid touching or holding by hand the piece to be cut
• Always arrange for a proper insulation against electric shock.
Should you work close to or in a dangerous area use all
possible precautions.
• If you feel even the slightest electric shock sensation, stop
cutting at once. Do not use the machine until the problem is
identified and solved.
• Always fit an automatic wall switch with adequate power, if
possible close to the machine so as to immediately switch the
unit off in an emergency event.
• Check often mains cable, torch cable, earth cable and
torch.
Never use the unit when one of them is damaged. Replace
them immediately.
• Disconnect mains cable from mains before replacing cables
or before removing unit covers.
• Always switch the unit off or disconnect it before replacing
nozzle, swirl ring, electrode or nozzle holder.
• Do not use the unit without protecting covers.
• Always replace any damaged parts of the unit, torch and
cables with original material.
• Never remove torch or unit safety devices.
• Make sure that the supply mains line is equipped with an
efficient earth plug.
• Any maintenance should be only carried out by qualified
personnel aware of the risks due to dangerous voltages
necessary to make the unit work.
ATTENTION: Never screw nozzle holder D (see picture 11)
to torch body E without fitting consumables electrode
A, diffuser B, nozzle C.
RADIATIONS
Ultraviolet radiations created by the arc may damage
your eyes and burn your skin. Then:
• Wear proper cloth and helmets.
• Do not use contact lenses!! The intense heat coming from the
arc may stick them on the cornea.
• Use masks with grade DIN 7 or 8 safety lenses, at least.
• Protect people surrounding the cutting area.
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FUMES
Cutting operations give off fumes and harmful metal
dusts which may damage health, therefore:
• Do not work in areas without proper ventilation.
• Keep your head out of fumes.
• In closed rooms use suitable exhaust fans, placed under the
cutting area, if possible.
• If ventilation is not enough, use breathing sets approved for
this procedure.
• Clean the material to be cut off solvents or halogen degrea-
sers giving rise to toxic gases when cutting: some chlorin
solvents may decompose with radiations emitted by the arc
and create phosgene gas.
• Do not cut plated metals or metals containing lead, graphite,
cadmium, zink, chrome, quicksilver or beryllium unless you
have a proper breathing set.
• The electric arc creates ozone. After long exposure to high
concentrations of ozone you may have headache, nose, throat
and eyes irritation as well as serious congestion and breast
pains.
IMPORTANT: DO NOT USE OXYGEN FOR VENTILATION.
FIRE
• Avoid producing fire because of sparks, hot
metal or pieces.
• Make sure that suitable fireproof devices are available close
to cutting area.
• Remove from cutting area and surrounding area (33 feet at
least) all inflammable and combustible material.
• Do not cut containers of combustible or lubricating material,
even when empty. These should be carefully cleaned before
being cut.
• Let the material cut cool down before touching it or putting it
in contact with combustible or inflammable material.
• Do not cut parts with hollow spaces including inflammable
material.
• Do not work under conditions of high concentration of
combustible vapours, gases or inflammable dust.
• Always check the work area half an hour after cutting so as to
make sure that no fire is starting to burn.
BURNS
• Wear fire-proof clothes all over your body to protect your skin
against burns caused by ultraviolet radiations from the arc,
from sparks and hot metal.
• Wear no turn-up trousers to prevent sparks and metal to
deposit in them.
• Wait for the torch to be cooled down and then switch the unit
off before touching the front side of the torch.
• Torch is provided with a pilot arc, then as soon as you
press the button, the plasma spark starts even if earth
cable is not connected. Avoid directing jet towards your
own body or towards other people surrounding the cut-
ting area.
• To prevent spark to starts by chance, always switch the
unit off before putting down your torch.
• Do not carry combustible material, such as lighters or
matches in pocket.
EXPLOSIONS
• Do not cut above or near containers under pressure.
• Do not cut in environments containing explosive
dusts, gases or vapours.
This plasma cutter uses compressed air to work; should you
use compressed air bottles follow suitable precautions:
A) BOTTLES
• Do not directly connect bottle to reducing unit without a
pressure regulator; pressure might exceed the reducing unit
capacity making it explode.
• Feeding pressure must not exceed 120 PSI (8bar/KPa x100)
• Handle or use pressure bottles in conformity with the existing
rules.