Scheppach 5906602901 Originalbetriebsanleitung Seite 12

• Check the condition of the welding cables, the elec-
trode tongs and the earth terminals; wear on the
insulation and the live parts may result in danger-
ous conditions and reduce the quality of the weld-
ing work.
• Arc welding generates sparks, molten metal par-
ticles and smoke, so the following is required: Re-
move all inflammable substances and/or materials
from the working area.
• Ensure that there is adequate ventilation.
• Do not weld on tanks, vessels or pipes that have
contained inflammable liquids or gases. Avoid all
direct contact with the welding circuit; the idling
voltage between the electrode tongs and the earth
terminal may be dangerous.
• Do not store or use the appliance in wet or damp
conditions or in the rain.
• Protect your eyes with specially designed goggles
(DIN Grad 9-10). Wear gloves and dry safety cloth-
ing that are not contaminated by any oil or grease
to ensure that your skin is not exposed to ultraviolet
radiation from the arc.
• Do not use this welder to defrost pipes
Remember!
• The radiation from the arc can damage your eyes
and cause burns on skin.
• Arc welding generates sparks and droplets of
molten metal; the welded workpiece may start to
glow and will remain very hot for a relatively long
period of time.
• Arc welding releases vapors that may be harmful.
Every electric shock is potentially fatal.
• Do not approach the arc within a radius of 15 m
unprotected.
• Protect yourself (and others around you) against
the possible hazardous effects of the arc.
• Warning: Depending on the mains connection con-
ditions at the connection point of the welding set,
other consumers connected to the mains may suf-
fer faults.
Important!
If the supply mains and circuits are overloaded, other
consumers may suffer interference during the weld-
ing work. If you have any doubts, contact your elec-
tricity supply company.
Sources of danger during arc welding
Arc welding results in a number of sources of dan-
ger. It is therefore particularly important for the welder
to comply with the following rules so as not to place
himself or others in danger and to avoid endangering
people and equipment.
• Have all work on the mains voltage system, for ex-
ample on cables, plugs, sockets, etc., performed
only by trained electricians. This particularly ap-
plies to configuring intermediate cables.
• If an accident occurs, disconnect the welding pow-
er source from the mains immediately.
• If electric touch voltages occur, switch off the weld-
ing set immediately and have it checked by an ex-
pert.
• Always check for good electrical contacts on the
welding current side.
12 І GB
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• Wear insulating gloves on both hands for welding.
These offer protection from electric shocks (idling
voltage in the welding circuit), harmful radiation
(Heat and UV radiation) and from glowing metal
and slag spatter.
• Wear firm, insulated footwear. Your shoes should
also protect you in wet conditions. Opentoed foot-
wear is not suitable since falling droplets of glowing
metal will cause burns.
• Wear suitable clothing, do not wear synthetic
clothes.
• Do not look into the arc with unprotected eyes, use
only a welding safety shield with the proper safety
glass in compliance with DIN standards. In addition
to light and heat, which may cause dazzling and
burns, the arc also gives off UV radiation. Without
proper protection, this invisible ultraviolet radiation
causes very painful conjunctivitis, which will only
be noticeable several hours later. In addition, UV
radiation will cause sunburn-type symptoms on un-
protected parts of the body.
• Personnel or assistants in the vicinity of the arc
must also be notified of the dangers and provided
with the required protection; if necessary install
safety walls.
• Ensure adequate ventilation for welding, particular-
ly in small rooms since the process causes smoke
and harmful gases.
• Do not carry out any welding work on tanks that
have been used to store gases, fuels, mineral oil or
the like, even if they have been empty for a lengthy
period of time, since any residue will result in a dan-
ger of explosion.
• Special regulations apply in areas where there is a
potential risk of fire and/or explosion.
• Welds that are exposed to large stresses and must
comply with safety requirements may only be com-
pleted by specially trained and approved welders.
Examples of such welds include pressure vessels,
rails, trailer hitches, etc.
• Note: It must be noted that the protective conduc-
tor in electrical systems of appliances may be de-
stroyed by the welding current in the event of neg-
ligence, for example if the earth terminal is placed
on the welding set casing to which the protective
conductor of the electrical system is connected.
The welding work is completed on a machine with
a protective conductor connection. It is therefore
possible to weld on the machine without having
connected the earth terminal to it. In this case the
welding current will flow from the earth terminal
through the protective conductor to the machine.
The high welding current may cause the protective
conductor to melt.
• The fuses on the supply cables to the mains sock-
ets must comply with the relevant regulations. To
comply with these regulations, only fuses or circuit
breakers suitable for the cross-section of the ca-
bles may be used. The use of too high a fuse may
result in the cable burning and fire damage to the
building.