• inspection of all the safety devices installed on the
machine;
• ll connections with pins and screws;
• inspection of the machine operations;
• inspection of the machine status;
• verification of the correct operation and efficiency
of the electrical system;
• checking the seal and efficiency of the pneumatic
and/or hydraulic system.
The results of these checks must be reported on a
specific sheet.
ATTENTION: If worn or faulty parts are not
promptly replaced, the manufacturer cannot be
held in any way liable for the damage caused by
accidents that may result.
If faults or anomalies are detected, they must be
eliminated before the machine is put into opera-
tion, and the expert carrying out the inspection
will have to certify that the repair has been made,
thus allowing the machine to be used.
If the person performing the inspection detects haz-
ardous faults, they must promptly inform the ma-
chine manufacturer.
Place the machine out of service if operating faults
are found while performing the appropriate checks/
inspections and/or repairs. Check that no objects are
left between the moving parts after any maintenance
work.
In order to guarantee maximum safety of the ma-
chine it is, nonetheless, PROHIBITED to:
• Tamper with any part of the machine;
• Leave moving parts unattended;
• Use the machine when not operating at full effi-
ciency;
• Modify the machine to change the originally es-
tablished use, without explicit authorisation from
the Manufacturer;
• Run moving parts with manual operations in case
of power failure.
3.2. INTENDED USE
The welding system should only be used for the pur-
pose for which it was manufactured meaning to gen-
erate an electrical arch for MIG/MAG, TIG, MMA weld-
ing accordingly.
ATTENTION: It cannot therefore be used as a de-
vice tor thaw pipes; any improper use automati-
cally voids the warranty and excludes the man-
ufacturer from any liability in case of damage to
persons and property.
chine must never be modified in any part except for
modifications planned and authorised by the manu-
facturer and carried out by persons authorised by the
manufacturer.
In particular, the distance of the arc from the work
piece and the stabilisation devices must be adjusted
and maintained according to the manufacturer's rec-
ommendations.
C) Welding cables
Welding cables must be kept as short as possible and
must be placed close to each other and passed on
the floor or as low as possible.
D) Work piece earthing
The earth connection of the work piece can reduce
electromagnetic emissions in some cases.
The operator must pay attention to avoid that the
earthing of the piece is not a source of danger for
people and damage to the equipment. Where nec-
essary, earthing must be carried out with a direct
connection between the work piece and the ground,
while in countries where this is not permitted, the
connection must be made using a capacitor in ac-
cordance with the regulations of the country.
E) Shielding
Cable and equipment shielding in the work area can
reduce interference. Shielding of the entire welding
or cutting installation can be considered for special
applications.
F) Equipotential connections
The equipotential connections of all metal compo-
nents in and near welding installations should be
considered.
In any case the metal components connected to the
piece to be welded will increase the risk for the op-
erator to receive an electric shock from the simulta-
neous contact with these metal components and the
electrode. The operator should be isolated from all
these metal components rendered equipotential.
Checks and inspections
Checks must be carried out by a qualified technician
or a qualified and authorised technician; they must
be visual and functional, with the aim of guarantee-
ing the safety of the machine.
They include:
• inspection of all supporting structures, which
must not show any signs of cracking, breakage,
damage, deformation, corrosion, wear or altera-
tion to the original characteristics;
• checking all mechanical parts;
12
1.995.229 EN - Rev. 1.1
NOVATIG 403 DC PULSE
