ATD Tools ATD 37155 User manual

OPERATING INSTRUCTIONS
MANUEL D'INSTRUCTIONS
MANUAL DE INSTRUCCIONES
3.300.849
IMPORTANT OPERATING INSTRUCTIONS
SAVE THESE INSTRUCTIONS
MODEL
ATD
37155

2
INSTRUCTION MANUAL FOR WIRE WELDING MACHINES
IMPORTANT:
READ THIS MANUAL CAREFULLY BEFORE
INSTALLING, USING, OR SERVICING THE WELDING
MACHINE, PAYING SPECIAL ATTENTION TO SAFETY
RULES. CONTACT YOUR DISTRIBUTOR IF YOU DO
NOT FULLY UNDERSTAND THESE INSTRUCTIONS.
1 INSTALLATION
This machine must be used for welding only.It must not be
used to defrost pipes.
It is also essential to pay special attention to the chapter
on SAFETY PRECAUTIONS.
The symbols next to certain paragraphs indicate points
requiring extra attention, practical advice or simple infor-
mation.
This manual must be stored carefully in a place familiar to
everyone involved in using the machine. It must be con-
sulted whenever doubts arise and be kept for the entire
life-span of the machine; it will also be used for ordering
replacement parts.
1.1 PLACEMENT
Unpack the machine and place it in an adequately venti-
lated area, dust-free if possible, taking care not to block
the air intake and outlet from the cooling slots.
CAUTION: REDUCED AIR CIRCULATION causes over-
heating and could damage internal parts.
Keep at least 500 mm of free space around the machine.
Never place any filtering device over the air intake points
of this welding machine.
The warranty shall become void if any type of filtering
device is used.
Mount the parts supplied with the machine as shown in
the figure 1.
2 DESCRIPTION OF THE MACHINE
A) Switch
Turns the machine on and off, and also regulates the
welding voltage range.
B) Setting knob
This knob serves to adjust the welding wire speed.
C) Earth cable
D) Yellow LED
Lights only when the thermostat is tripped and
interrupts the machine operation.
E) Green LED
Indicates that the machine is turned on.
F) Welding torch
G) Handle
Must not be used to lift the machine.
3 GENERAL DESCRIPTIONS
3.1 SPECIFICATIONS
This welding machine allows welding of soft steel, stain-
less steel and aluminium.
3.2 EXPLANATION OFTECHNICAL SPECIFICATIONS
Fig. 1
Fig. 2

3
N° Serial number which must be stated when
asking for information or servicing related to
this machine.
IEC 60974-1 The welding machine is manufactured according
EN 50199 to these international standards.
Single-phase Transformer - Rectifier
MIG/MAG. Suitable for continuous wire welding
I2 max Unconventional welding current.
The value represents the maximum level that
can be obtained in welding.
Uo Secondary no-load voltage.
X The duty-cycle expresses the percentage of
10 minutes during which the welding machine
can operate at a determined current level
without overheating: e.g. X=60% at I2=100 A.
This means that the welding machine can
weld with a current I2 = 100A for 6 minutes out
of 10, i.e. 60%.
I2 Welding current
U2 Secondary voltage with welding current I
U1 Nominal supply voltage at the rated frequency.
I1 max. This is the maximum value of the absorbed
current.
I1 eff. This is the maximum value of the actual absor-
bed current.
Ip 21 Grade of protection of the case.
Grade 1 as a second number means that this
unit is not fit for working in the rain.
S Fit for working in high-risk areas.
3.3 DESCRIPTION OF PROTECTION
This device is protected by a normally closed thermostat
on the power transformer.
When the thermostat is tripped the machine stops weld-
ing, while the motor-driven fan continues to run and the
yellow LED lights.
After it has been tripped, wait a few minutes to allow the
generator to cool down.
4 INSTALLATION
The machine must be installed by skilled personnel. All
connections must be made in compliance with current reg-
ulations and in full respect of safety laws.
Make sure that the wire diameter corresponds to the one
indicated on the roller, and mount the wire reel.Make sure
that the welding wire passes through the groove in the
small roller 7.
Before connecting the power cable 23, make sure that the
power voltage corresponds to that of the welding machine,
then: a) for permanent connection to the power mains
without a plug, you must insert a main switch
having a suitable capacity in compliance with the
rated specifications.
b) for a plug-socket connection, use a plug having
a suitable capacity in compliance with the rated
specifications.In this case the plug must be used
to completely disconnect the machine from the
mains, after setting the switch 47 to “O” (off).
The yellow-green wire must be connected to the earth ter-
minal.Connect the earth clamp 37 to the part to be welded.
The welding circuit must not be deliberately placed in
direct or indirect contact with the protection wire except in
the workpiece.
If the workpiece is deliberately grounded using the protec-
tion wire, the connection must be as direct as possible,
using a wire at least as large as the welding current return
wire, and connected to the workpiece at the same point as
the return wire, using the return wire clamp or a second
grounding clamp placed next to it.
All precautions must be taken to avoid stray welding cur-
rents.
Turn the machine on using the switch 47.
Remove the tapered gas tip 44 by turning it clockwise.
Unscrew the contact tip 43.
Do not press the torch trigger until you have read the
instructions carefully.
It is important to make sure the machine is turned off
whenever changing the wire reel and wire roller, to prevent
the wire feed motor from starting accidentally.
Press the torch trigger 39 and release it only when the
welding wire comes out.
Welding wire can cause puncture wounds.
Never aim the torch at parts of the body, other people or
metals when loading the welding wire.
Screw the contact tip 43 back on, making sure that the
hole diameter corresponds to the wire used.
Slide the tapered gas welding tip 44 on, always turning
clockwise.
4.1 CONNECTING THE GAS HOSE
lThe gas cylinder must be equipped with a pressure
reducer and flow meter.
lIf the cylinder is placed on the cylinder holder of the
machine, it must be held in place by the chain provided
and be of an appropriate size to avoid jeopardizing the
stability of the machine.
lConnect the gas hose leaving the back of the machine
to the pressure reducer only after the cylinder is in place.
lOpen the gas cylinder and set the flow meter to approx-
imately 8-10 lt./min.
CAUTION: Make sure the gas used is compatible with the
material to be welded.
4.2 GENERAL NOTES
Before using this welding machine, carefully read the reg-
ulations CEI 26/9 or CENELEC HD 407 and CEI 26/11 or
CENELEC HD 433. Also make sure that the insulation on
cables, torch and earth cable is intact.
5 WELDING
5.1 WELDING MILD STEEL
5.1.1 With gas protection.
Either 75% ARGON + 25% CO2 or 100% CO2 may be
used for welding mild steel.
Connect the cables as shown in the figure 3.
Select the welding current by means of the rotary switchl
47.
Move the torch near the welding point and press the trig-
ger 39.
Adjust the potentiometerl knob 2 until the welding is done
with a constant, continuous noise.
If the speed is too fast, the wire tends to stick to the piece
and cause the torch to skip; if the speed is too low, the
wire melts in spaced drops or the arc does not remain lit.

4
When you have finished welding, turn off the machine and
close the gas cylinder.
For the correct welding angle see figure 5.
5.1.2 Without gas protection.
Connect the cables as shown in the figure 4.
Use only diam. 0.9 flux cored wire that complies with the
standard AWS AS.20 E71TII or E71 TGS, suitable for use
without gaseous protection.
Connect the earth cable clamp to the workpiece.
After connecting the cables, follow the instructions given in
paragraph 5.1.1.
NOTE: For compact, well-protected welds always work
from left to right and from top to bottom.
Remove all waste after each welding operation.
For the correct welding angle see figure 5.
5.2 WELDING ALUMINIUM
The welding machine must be prepared as for welding
mild steel with gas protection, but with the following differ-
ences:
- 100% ARGON as the protection gas for welding.
- A wire having a composition suited to the base material
to be welded.
For welding ALLUMAN: 3÷5% silicon wire
- For welding ANTICORODAL: 3÷5% silicon wire
- For welding PERALUMAN: 5% magnesium wire
- For welding ERGAL: 5% magnesium wire
Use grinding wheels and brushes specifically designed for
aluminium, and never use them on other materials.
REMEMBER that cleanliness is quality!
The wire reels must be stored in nylon bags with dehu-
midifying packets.
For the correct welding angle see figure 5.
5.3 WELDING STAINLESS STEEL
The welding machine must be prepared as for welding
mild steel with gas protection, but with the following differ-
ences:
- Reel of stainless steel wire compatible with the compo-
sition of the material to be welded.
- Cylinder containing 98% ARGON + 2% 02 (recommend-
ed composition)
The recommended torch angle and welding direction are
shown in figure 5.
6 MAINTENANCE AND CHECKS
6.1 GENERAL NOTES
lTurn off the welding machine and unplug the power cord
from the socket before each checking and maintenance
operation.
lMoving parts can cause serious lesions
lKeep away from moving parts.
lINCANDESCENT SURFACES can cause serious burns.
lLet the unit cool before servicing.
lPeriodically remove any dust or foreign matter that may
have deposited on the transformer or diodes; to do so, use
a jet of clean, dry air.
lWhen replacing the wire roller, make sure the groove is
aligned with the wire and corresponds to the diameter of
the wire used.
lAlways keep the interior of the gas nozzle clean to avoid
metal bridges created by welding dross between the gas
nozzle and the contact tip.Make sure the outlet hole of the
contact tip has not expanded excessively; if so, replace.
lStrictly avoid striking the torch or allowing it to suffer vio-
lent impact.
6.2 REPAIRING THE WELDING MACHINE
Experience has shown that many accidents are caused by
repairs performed incorrectly. That is why it is just as
important to check a repaired welding machine carefully
and completely as it is for a new welding machine.
In addition, this protects the manufacturer from being held
liable for defects when the true fault lies elsewhere.
Fig. 5
Fig. 3
Fig. 4

5
6.2.1 Instructions for performing repairs
lAfter rewinding the transformer or inductance, the weld-
ing machine must pass the applied voltage tests as indi-
cated in table 2 of paragraph 6.1.3 of the standard EN
60974.1 (CEI 26.13). Compliance must be verified as
specified in 6.1.3.
lIf no rewinding has been done, a welding machine that
has been cleaned and/or revised must pass an applied
voltage test with test voltage values equal to 50% of the
values given in table 2 of paragraph 6.1.3. Compliance
must be verified as specified in 6.1.3.
lAfter rewinding and/or replacing parts, the no-load volt-
age must not exceed the values given in paragraph 10.1
of EN 60974.1.
lIf the repairs have not been performed by the manufac-
turer, repaired welding machines in which some compo-
nents have been replaced or altered must be marked in
such a way that the person who performed the repairs is
clearly identifiable.
lAfter making repairs, take care to re-order the wiring so
that there is certain insulation between the primary side
and the secondary side of the machine. Prevent the wires
from coming into contact with moving parts or parts that
heat up during operation. Replace all clamps as on the
original machine to prevent a connection from occurring
between the primary and secondary side if a conductor
accidentally breaks or disconnects.
6.3 TROUBLESHOOTING GUIDE
7 SAFETY PRECAUTIONS
7.1 FIRE
lAvoid causing fire because of sparks,
slag, hot metal or pieces.
lMake sure that suitable fire-fighting equip-
ment is available close to welding area.
lRemove all flammable and combustible material from
the welding area and its surrounding (32 ft minimum).
lDo not weld containers of combustible or flammable
material, even when empty. These must be carefully
cleaned before being welded.
lAllow the welded material to cool down before touching it or
putting it in contact with combustible or flammable material.
lDo not weld parts with hollow spaces, containing flam-
mables.
lDo not work under conditions with high concentrations of
combustible vapours, gases, or flammable dust.
lAlways check the work area half an hour after welding
so as to make sure that no fire has started.
lDo not keep any combustible material such as lighters or
matches in your pockets.
7.2 BURNS
lWear fire-proof clothing all over your body in order to pro-
tect your skin against burns caused by ultraviolet radiation
given off by the arc, and from weld metal sparks and slag.
lWear protective clothing-gauntlet gloves designed for
use in welding, hat and high safety-toe shoes.Button shirt
collar and pocket flaps, and wear cuff-less trousers to
avoid entry of sparks and slag.
lWear helmet with safety goggles and glasses with side
shields underneath, appropriate filter lenses or plates (pro-
tected by clear cover glass).This is a MUST for welding to
protect the eyes from radiant energy and flying metal.
Replace cover glass when broken, pitted, or spattered.
lAvoid oil or greasy clothing. A spark may ignite them.
Hot metal such as electrode stubs and workpieces should
never be handled without gloves.
lFirst-aid facilities and a qualified first-aid person should
be available for each shift unless medical facilities are
close by for immediate treatment of flash burns of the eyes
and skin burns.
lEar plugs should be worn when working on overhead or
in a confined space.A hard hat should be worn when oth-
ers work overhead.
lFlammable hair preparations should not be used by per-
sons intending to weld or cut.
7.3 FUMES
Welding operations give off harmful fumes and
metal dusts which may be hazardous to your
health, therefore:
lWork in a well-ventilated area.
lKeep your head out of fumes.
lIn closed areas, use suitable exhaust fans.
lIf ventilation is not enough, use breathing sets approved
for this procedure.
lClean the material to be welded of any solvents or halo-
gen degreasers giving rise to toxic gases. Some clorine
solvents may decompose with the radiation emitted by the
arc, and create phosgene gas.
lDo not weld plated metals or those containing lead,
ROUBLE
The welding machi-
ne supplies limited
current
Welding with a lot
of metal spatter
The wire jams or
entangles between
the drive rolls and
the torch infeed wire
guide
No wire feed or irre-
gular wire feed
Porosity in the wel-
ding seam
PROBABLE CAUSE
Line fuse blown
Burnt out diode or diodes
Burnt out electronic board
Loosened torch or earth
connections or any other
electrical power connec-
tions
Voltage adjustment switch
has a loose contact
Improper adjustment of
welding parameters
Insufficient grounding
Contact tip with wrong dia-
meter
Misalignment of the drive
roll groove
Obstructed or clogged
liner
Drive roll with too large a
groove
Obstructed or clogged
liner
Wire holding roller not
completely tightened
Clogged contact tip
Insufficient shielding gas
Excess oxidation of the
edges to be welded
Gas nozzle partially or
completely clogged by
spatter
REMEDY
Replace line fuse
Replace
Replace
Tighten all connections
Replace the switch
Select the correct parame-
ters through the welding-
voltage switch and the
wire-speed adjustment
potentiometer
Check grounding connec-
tions
Replace
Realign
Remove and clean
Replace the drive roll
Remove and clean
Tighten all the way
Replace
Increase gas delivery
Thoroughly clean the
edges with a metal brush
Remove and clean or
replace being careful not
to clog the gas outlets

6
graphite, cadmium, zink, chrome, mercury or beryllium,
unless you have the proper breathing set.
lThe electric arc creates ozone. A long exposure to high
concentrations may cause headaches, nasal, throat and
eye irritation as well as serious congestions and chest
pains.
IMPORTANT: DO NOT USE OXYGEN FOR VENTILA-
TION.
lGas leaks in a confined space should be avoided.
Leaked gas in large quantities can change oxygen con-
centration dangerously. Do not bring gas cylinders into a
confined space.
lDO NOT WELD where solvent vapors can be drawn into
the welding atmosphere or where the radiant energy can
penetrate to atmospheres containing even minute
amounts of trichloroethylene or perchloroethylene.
7.4 EXPLOSIONS
Do not weld above or near containers under pres-
sure.
lDo not weld in environments containing explo-
sive dusts, gases or vapours.
This welding machine uses inert gases such as CO2,
ARGON, or a mixture of ARGON + CO2 for the protection
of the arc, thus you should take special precautions:
A) CYLINDERS
lDo not directly connect cylinder to the machine gas hose
without a pressure regulator.
lHandle or use pressure cylinders in conformity with the
existing rules.
lDo not use leaking or damaged cylinders.
lDo not use cylinders which are not well secured.
lDo not carry cylinders without the protection of the
installed valve.
lDo not use cylinders whose content has not been clear-
ly identified.
lNever lubricate cylinder valves with oil or grease.
lDo not put the cylinder in electrical contact with the arc.
lDo not expose cylinders to excessive heat, sparks,
molten slags or flame.
lDo not tamper with the cylinder valves.
lDo not try to loosen tight valves by means of hammers,
keys, or any other object.
lNEVER DEFACE or alter name, number, or other mark-
ings on a cylinder. It is illegal and hazardous.
lDo not lift cylinders off the ground by their valves or
caps, or by chains, slings or magnets.
lNever try to mix any gases in a cylinder.
lNever refill any cylinder.
lCylinder fittings should never be modified or exchanged.
B) PRESSURE REGULATORS
l Keep pressure regulators in good condition. Damaged
regulators may cause damages or accidents, they should
only be repaired by skilled personnel.
l Do not use regulators for gases other than those for
which they are manufactured.
l Never use a leaking or damaged regulator.
l Never lubricate regulators with oil or grease.
C) HOSES
lReplace hoses which appear damaged.
lKeep hoses unwound in order to avoid bending.
lKeep the excess hose wound and out of the working
area in order to avoid any damage.
7.5 RADIATIONS
Ultra-violet radiation created by the arc may dam-
age your eyes and burn your skin.Therefore:
lWear proper clothing and helmet.
lDo not use contact lenses!! The intense heat coming
from the arc may cause them to stick to the cornea.
lUse masks with grade DIN 10 or DIN 11 safety lenses at
the least.
lProtect people in the surrounding welding area.
Remember: the arc may dazzle or damage the eyes. It is
considered dangerous up to a distance of 15 meters (50
feet). Never look at the arc with the naked eye.
lPrepare the welding area so as to reduce reflection and
transmission of ultra-violet radiation. Paint walls and
exposed surfaces in black to reduce reflection, install
sheathings or curtains to reduce ultra-violet transmis-
sions.
lReplace mask lenses whenever damaged or broken.
7.6 ELECTRIC SHOCK
Electric shock can kill.
All electric shocks are potentially fatal.
l Do not touch live parts.
lInsulate yourself from the piece to be cut and from the
ground by wearing insulated gloves and clothing.
lKeep garments (gloves, shoes, hats, clothing) and body
dry.
lDo not work in humid or wet areas.
lAvoid touching the piece to be welded.
lShould you work close to or in a dangerous area, use all
possible precautions.
lIf you should feel even the slightest electric shock sen-
sation, stop welding immediately. Do not use the machine
until the problem is identified and solved.
lAlways fit an automatic wall switch with adequate power,
possibly close to the machine, allowing you to immediate-
ly switch the machine off in case of an emergency.
lFrequently inspect the power supply cable.
lDisconnect power supply cable from mains before
replacing cables or before removing unit covers.
lDo not use the unit without protection covers.
lAlways replace any damaged parts of the unit, with orig-
inal material.
lNever disconnect unit safety devices.
lMake sure that the power supply line is equipped with an
efficient earth plug.
lMake sure that the work bench and the workpiece are
connected to an efficient earth plug.
lAny maintenance should only be carried out by qualified
personnel aware of the risks due to dangerous voltages
necessary for the operation of the unit.
7.7 PACE MAKER
lMagnetic fields from high currents can affect pacemak-
er operation. Persons wearing electronic life support
equipment (pacemaker) should consult their doctor before
going near arc welding, gouging or spot welding opera-
tions.
7.8 CAUTION! WELDING WIRE CAN CAUSE PUNCTU

7
RE WOUNDS.
lDo not press gun trigger until instructed to do so.
lDo not point gun toward any part of the body, other peo-
ple, or any metal when threading welding wire.
7.9. MOVING PARTS CAN CAUSE INJURY.
Moving parts, such as fans, can cut fingers and hands and
catch loose clothing.
lKeep all doors, panels, covers, and guards closed and
securely in place.
lHave only qualified people remove guards or covers for
maintenance and troubleshooting as necessary.
lKeep hands, hair, loose clothing, and tools away from
moving parts.
lReinstall panels or guards and close doors when ser-
vicing is finished and before starting the machine.
7.10 NOISE
These power source alone do not produce noise
levels exceeding 80 dB. The welding procedure,
however, may produce noise levels in excess of
80 dB. in which case the machine operator must take the
necessary safety precautions as prescribed by the nation-
al safety regulation.

8
2 DESCRIPTION DE LA MACHINE
A) Interrupteur.
Il sert pour mettre en marche ou arrêter la machine
ainsi que pour régler les valeurs de la tension de sou-
dure.
B) Bouton de réglage.
A l’aide de ce bouton, il est possible de régler la vites-
se du fil de soudure.
C) Câble de masse.
D) Led jaune.
Elle s’allume uniquement lorsque le thermostat inter-
rompt le fonctionnement du poste à souder.
E) Led verte.
Elle indique la mise en marche de la machine.
F) Torche de soudure.
G) Poignée.
Elle ne doit pas être utilisée pour le levage.
3. DESCRIPTIONS GENERALES
3.1 SPECIFICATIONS
Ce poste à souder permet la soudure d’acier doux, acier
inoxydable et aluminium.
3.2. EXPLICATION DES DONNEESTECHNIQUES
N° Numéro de matricule qui doit toujours être
indiqué pour toute demande relative à ce
poste à souder.
IEC 60974-1 Le poste à souder est construit selon ces
EN 50199 normes internationales
Transformateur - Redresseur monophasé
MIG/MAG. Indiqué pour la soudure à fil continu.
IMPORTANT:
AVANT D’INSTALLER, EMPLOYER, OU BIEN COMMEN-
CER TOUT ENTRETIEN AU POSTE A SOUDER, IL
FAUT LIRE LE CONTENU DE CE MANUEL EN FAISANT
PARTICULIERE ATTENTION AUX NORMES DE SECU-
RITE. CONTACTEZ VOTRE DISTRIBUTEUR SI VOUS
N’AVEZ PAS COMPLETEMENT COMPRIS CES
INSTRUCTIONS.
1. INTRODUCTION
Cette machine ne doit être employée que pour des opéra-
tions de soudure et ne doit pas être utilisée pour décon-
geler les tuyaux.Il est cependant indispensable de donner
toute l’attention possible au chapitre concernant les PRE-
CAUTIONS DE SECURITE.
Les symboles placés à proximité des paragraphes aux-
quels se réfèrent ont le but de mettre en évidence des
situations d’attention maximum, des conseils pratiques ou
bien quelques simples renseignements.
Ce manuel doit être gardé avec soin, dans un lieu connu
par les différentes personnes intéressées. Il devra être
consulté chaque fois qu’on a des doutes; il devra suivre la
vie opérationnelle de la machine et sera utilisé pour émet-
tre les commandes d’achat des pièces de rechange.
1.1 MISE EN PLACE
Enlever la machine de son emballage et la placer dans un
endroit ayant une ventilation appropriée, si possible sans
poussières, en faisant attention à ne pas obturer l’entrée
et la sortie de l’air dans les grilles de refroidissement.
ATTENTION: UNE CIRCULATION REDUITE DE L’AIR
cause la surchauffe et de possibles endommagements
des parties intérieures.
Laisser au moins 500 mm d’espace libre tout autour de la
machine.
Ne placer aucun dispositif de filtration sur les passages
d’entrée de l’air de ce poste à souder.
La garantie devient nulle lorsqu’on utilise un dispositif de
filtration de n’importe quel type.
Monter les pièces fournies avec la machine comme indi-
qué en figure 1.
MANUEL D’INSTRUCTIONS POUR POSTES A SOUDER A FIL
Fig. 1
Fig. 2

9
la tension de réseau correspond à celle du poste à souder.
En suite:a) En cas de branchement permanent au
système d’alimentation sans fiche, il faut prévoir
un interrupteur général de capacité adéquate
par rapport aux données de la plaque.
b) En cas de branchement avec fiche, utiliser
une fiche de capacité adéquate par rapport aux
données de la plaque.Dans ce cas la fiche doit
être utilisée pour débrancher complètement la
machine du réseau, après avoir positionné
l’interrupteur 47 sur «O».
Le conducteur vert/jaune doit être raccordé à la borne de
terre. Raccorder la borne du câble de masse 37 à la pièce
à souder.
Le circuit de soudure ne doit pas être placé délibérément au
contact direct ou indirect avec le conducteur de protection,
sauf dans la pièce à souder.
Si la pièce à usiner est raccordée délibérément à la terre à
travers le conducteur de protection, le raccordement doit
être le plus direct possible et exécuté au moyen d’un con-
ducteur de section au moins égale à celle du conducteur de
retour du courant de soudure et raccordé à la pièce à usi-
ner en utilisant la borne du conducteur de retour ou bien
une deuxième borne de masse placée immédiatement à
proximité.Toute précaution possible doit être prise afin
d’éviter des courants errants de soudure.
Mettre la machine en marche à l’aide de l’interrupteur 47.
Extraire la buse gaz conique 44 en la tournant en sens
horaire.Dévisser la buse porte-courant 43.
Ne pas appuyer sur le bouton de la torche avant d’avoir
lu soigneusement le mode d’emploi.
Il est important de s’assurer que la machine est arrêtée
chaque fois qu’on remplace la bobine du fil et le rouleau
entraîne-fil afin d’éviter que le motoréducteur démarre acci-
dentellement.
Appuyer sur le bouton de la torche 39 et le laisser unique-
ment à la sortie du fil.
Le fil de soudure peut causer des blessures perforées.
Ne pas pointer la torche vers des parties du corps, d’autres
gens ou biens des métaux lors du montage du fil de sou-
dure.
Revisser la buse porte-courant 43 en s’assurant que le
diamètre du trou est égal au fil employé.
Introduire la buse gaz conique de soudure 44 en la tournant
toujours en sens horaire.
4.1 RACCORDEMENT DU TUYAU DU GAZ
lLa bouteille de gaz doit être équipée d’un détendeur de
pression et d’un débitmètre.
lSi la bouteille est positionnée sur la plate-forme de la
machine, elle doit être fixée à l’aide de la chaîne prévue et
avoir des dimensions telles à ne pas compromettre la sta-
bilité de la machine.
lPositionner tout d’abord la bouteille et en suite exécuter le
raccordement du tuyau du gaz sortant de la partie arrière
de la machine au détendeur de pression.
lOuvrir la bouteille de gaz et régler le débitmètre à 8/10
litres/min. environ.
ATTENTION: Contrôler que le gaz employé est compatible
avec le matériel à souder.
I2 max Courant de soudure non conventionnel.
Le valeur représent la limite maximale pouvant
être obtenue en soudure.
Uo Tension à vide secondaire.
X Le facteur de marche exprime le pourcentage
de 10 minutes au cours desquelles le poste à
souder peut travailler avec un courant fixé
sans provoquer des surchauffages.
Par exemple: X = 60% a I2 = 100 A.
Cela signifie que le poste à souder peut
souder avec un courant I2 = 100A pendant 6
minutes sur 10, c’est-à-dire 60%.
I2 Courant de soudage.
U2 Tension secondaire avec courant de soudage I2.
U1 Tension nominale d’alimentation à la fréquence
décrite.
I1 max. C'est la valeur maximale du courant absorbé.
I1 eff. C'est la valeur maximale du courant
effectif absorbé.
IP21 Degré de protection de la carcasse.
Degré 1 comme deuxième chiffre signifie que
cet appareil ne peut pas être utilisé
sous la pluie.
S Indiqué pour travailler dans des locaux
soumis à un risque accru.
3.3. DESCRIPTION DE LA PROTECTION
Cette machine est protégée par un thermostat normale-
ment fermé positionné sur le transformateur de puissance.
Lors de l’entrée en fonction du thermostat, la machine
cesse de souder tandis que le ventilateur à moteur continue
à fonctionner et la led jaune s’allume.
Après l’entrée en fonction, attendre quelques minutes de
façon à permettre le refroidissement du générateur.
4 MISE EN OEUVRE
L’installation de la machine doit être exécutée par personnel
expert.Tous les raccordements doivent être exécutés selon
les normes en vigueur et dans le respect total de la régle-
mentation en matière de prévention des accidents.
Contrôler que le diamètre du fil correspond au diamètre
indiqué sur le rouleau et monter la bobine du fil. S’assurer
que le fil de soudure passe à l’intérieur de la gorge du rou-
leau 7.
Avant de raccorder le cordon d’alimentation 23, s’assurer que

10
avec la norme AWS AS.20 E71 TII ou bien E71 TGS, apte
à l’emploi sans protection de gaz.
Raccorder la pince du câble de masse à la pièce à souder.
Après avoir raccordé les câbles suivre les mêmes instruc-
tions décrites au paragraphe 5.1.1.
N.B. Afin d’obtenir des soudures raccordées et bien
protégées, procéder toujours de gauche à droite et du haut
vers le bas.
A la fin de chaque soudure, enlever les déchets.
Pour la correcte inclinaison de soudure, voir figure 5.
5.2 SOUDURE DE L’ALUMINIUM
Le poste à souder doit être prédisposé comme pour la sou-
dure de l’acier doux avec protection de gaz, en appliquant
les variations suivantes:
- ARGON 100 % en tant que gaz de protection pour la sou-
dure.
- Un fil d’apport de composition adéquate au matériel
de base à souder.
- Pour souder ALUMAN fil 35 % silicium.
- Pour souder ANTICORODAL fil 35 % silicium.
- Pour souder PERALUMAN fil 5% magnésium.
- Pour souder ERGAL fil 5 % magnésium.
Utiliser des meules et des brosseuses spécifiques pour l’a-
luminium sans jamais les utiliser sur d’autres matériels.
SE RAPPELER que propreté veut dire qualité!
Les bobines de fil doivent être gardées à l’intérieur de
sachets en nylon avec un déshumidificateur.
Pour la correcte inclinaison de soudure, voir figure 5.
5.3 SOUDURE DE L’ACIER INOXYDABLE
Le poste à souder doit être prédisposé comme pour la sou-
dure de l’acier doux avec protection de gaz, en appliquant
les variations suivantes:
- Bobine de fil d’acier inoxydable compatible avec la com-
position de l’acier à souder.
- Bouteille contenant de l’ARGON 98 % + O2 2% (com-
position conseillée).
L’inclinaison de la torche et la direction de soudure conseil-
lées sont illustrées dans la figure 5.
6 ENTRETIEN ET CONTROLES
L’entretien doit être exécuté par personnel qualifié.
4.2 NOTES GENERALES
Avant d’utiliser ce poste à souder, lire soigneusement les
normes CEI 26/9 ou bien CENELEC HD 407 et CEI 26/11
ou bien CENELEC HD 433.En outre vérifier l’intégrité de l’i-
solement des câbles, de la torche et du câble masse.
5 SOUDURE
5.1 SOUDURE DE L’ACIER DOUX.
5.1.1 Avec protection de gaz.
Pour les soudures d’acier doux on peut utiliser de l’ARGON
75% + CO2 25% ou bien CO2 100%.
Raccorder les câbles comme d’après la figure 3.
Choisir la tension de soudure au moyen du bouton du com-
mutateur rotatif 47.
Se rapprocher au point de soudure et appuyer sur le bou-
ton de la torche 39.
Tourner le bouton du potentiomètre 2 jusqu’à obtenir une
soudure avec un bruit constant et continu.
Avec une vitesse trop élevée le fil tend à trébucher en fai-
sant rebondir la torche; avec une vitesse trop réduite le fil
fond à gouttes irrégulières ou bien l’arc ne demeure pas
allumé.
Après avoir exécuté la soudure, arrêter la machine et fer-
mer la bouteille de gaz.
Pour la correcte inclinaison de soudure, voir figure 5.
5.1.2 Sans protection de gaz.
Raccorder les câbles comme d’après la figure 4.
On ne doit utiliser que du fil avec âme 0,9 en conformité
Fig. 4
Fig. 5
Fig. 3