CLAS OC 0221 Mode D'emploi page 21

OC 0221
CONNECTABLE PLASMA CUTTER 40A
MAINTENANCE AND CONTROL
It is recommended to keep nozzle free from slag. Avoid using sharpened bodies thus avoiding
damaging the nozzle hole.
Even if the unit is provided with an automatic device for water discharge, working whenever air
feed is closed, it is recommended to check from time to time that no water remains in trap (I) of
reducer (1).
It is required to clean from time to time the unit inside and make it free from metal dust by means
of compressed air.
Operations to be carried out inside the unit must be effected after disconnecting feed cable.
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 / 350 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. Make sure that the
work table is connected to an efficient earth plug.
• Maintenance should be only carried out by qualified personnel aware of the risks due to dangerous
voltages necessary to make the unit work.