Thank you and congratulations on choosing Hobart.
Now you can get the job done and get it done right.
We know you don’t have time to do it any other way.
This Owner’s Manual is designed to help you get the
most out of your Hobart products. Please take time
to read the Safety precautions. They will help you
protect yourself against
potential hazards on the
worksite. We’ve made
installation and operation
quick and easy. With Hobart you can count on
years of reliable service with proper
maintenance. And if for some reason the unit
Hobart is registered to the
ISO 9001 Quality System
Standard.
needs repair, there’s a Troubleshooting section
that will help you figure out what the problem
is. The parts list will then help you to decide
which exact part you may need to fix the
problem. Warranty and service information for
your particular model are also provided.
Hobart Welders manufactures a full line
of welders and welding related equipment.
For information on other quality Hobart
products, contact your local Hobart distributor
to receive the latest full line catalog or
individual catalog sheets. To locate your nearest
distributor or service agency call 1-877-Hobart1.
Hobart offers a Technical
Manual which provides
more detailed service and
parts information for your
unit. T o obtain a Technical
Manual, contact your local
distributor. Your distributor
can also supply you with
Welding Process Manuals
such as SMAW, GTAW,
GMAW, and GMA W-P.
The following terms are
used interchangeably
throughout this manual:
TIG = GTA W
Stick = SMAW
WARNING
This product, when used
for welding or cutting,
produces fumes or
gases which contain
chemicals known to the
State of California to
cause birth defects and,
in some cases, cancer.
(California Health &
Safety Code Section
SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING
1-1.Symbol Usage
Means Warning! Watch Out! There are possible hazards
with this procedure! The possible hazards are shown in
the adjoining symbols.
som _nd_5/97
Y Marks a special safety message.
. Means “Note”; not safety related.
1-2.Arc Welding Hazards
Y The symbols shown below are used throughout this manual to
call attention to and identify possible hazards. When you see
the symbol, watch out, and follow the related instructions to
avoid the hazard. The safety information given below is only
a summary of the more complete safety information found in
the Safety Standards listed in Section NO TAG. Read and follow all Safety Standards.
Y Only qualified persons should install, operate, maintain, and
repair this unit.
Y During operation, keep everybody, especially children, away.
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
live when power is on. In semiautomatic or automatic wire welding, the
wire, wire reel, drive roll housing, and all metal parts touching the
welding wire are electrically live. Incorrectly installed or improperly
grounded equipment is a hazard.
D Do not touch live electrical parts.
D Wear dry, hole-free insulating gloves and body protection.
D Insulate yourself from work and ground using dry insulating mats
or covers big enough to prevent any physical contact with the work
or ground.
D Do not use AC output in damp areas, if movement is confined, or if
there is a danger of falling.
D Use AC output ONLY if required for the welding process.
D If AC output is required, use remote output control if present on
unit.
D Disconnect input power or stop engine before installing or
servicing this equipment. Lockout/tagout input power according to
OSHA 29 CFR 1910.147 (see Safety Standards).
D Properly install and ground this equipment according to its
Owner’s Manual and national, state, and local codes.
D Always verify the supply ground – check and be sure that input
power cord ground wire is properly connected to ground terminal in
disconnect box or that cord plug is connected to a properly
grounded receptacle outlet.
D When making input connections, attach proper grounding conduc-
tor first – double-check connections.
D Frequently inspect input power cord for damage or bare wiring –
replace cord immediately if damaged – bare wiring can kill.
D Turn off all equipment when not in use.
D Do not use worn, damaged, undersized, or poorly spliced cables.
D Do not drape cables over your body.
power circuit and machine internal circuits are also
This group of symbols means Warning! Watch Out! possible
ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.
Consult symbols and related instructions below for necessary actions
to avoid the hazards.
D If earth grounding of the workpiece is required, ground it directly
with a separate cable – do not use work clamp or work cable.
D Do not touch electrode if you are in contact with the work, ground,
or another electrode from a different machine.
D Use only well-maintained equipment. Repair or replace damaged
parts at once. Maintain unit according to manual.
D Wear a safety harness if working above floor level.
D Keep all panels and covers securely in place.
D Clamp work cable with good metal-to-metal contact to workpiece
or worktable as near the weld as practical.
D Insulate work clamp when not connected to workpiece to prevent
contact with any metal object.
D Do not connect more than one electrode or work cable to any
single weld output terminal.
SIGNIFICANT DC VOLTAGE exists after removal of
input power on inverters.
D Turn Off inverter, disconnect input power, and discharge input
capacitors according to instructions in Maintenance Section
before touching any parts.
FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health.
D Keep your head out of the fumes. Do not breathe the fumes.
D If inside, ventilate the area and/or use exhaust at the arc to remove
welding fumes and gases.
D If ventilation is poor, use an approved air-supplied respirator.
D Read the Material Safety Data Sheets (MSDSs) and the
manufacturer’s instructions for metals, consumables, coatings,
cleaners, and degreasers.
D Work in a confined space only if it is well ventilated, or while
wearing an air-supplied respirator. Always have a trained watchperson nearby. Welding fumes and gases can displace air and
lower th e o x y g e n l e v e l c a using injury or death. Be sure the breathing air is safe.
D Do not weld in locations near degreasing, cleaning, or spraying op-
erations. The heat and rays of the arc can react with vapors to form
highly toxic and irritating gases.
D Do not weld on coated metals, such as galvanized, lead, or
cadmium plated steel, unless the coating is removed from the weld
area, the area is well ventilated, and if necessary, while wearing an
air-supplied respirator. The coatings and any metals containing
these elements can give off toxic fumes if welded.
OM-222 Page 1
ARC RAYS can burn eyes and skin.
BUILDUP OF GAS can injure or kill.
Arc rays from the welding process produce intense
visible and invisible (ultraviolet and infrared) rays
that can burn eyes and skin. Sparks fly off from the
weld.
D Wear a welding helmet fitted with a proper shade of filter to protect
your face and eyes when welding or watching (see ANSI Z49.1
and Z87.1 listed in Safety Standards).
D Wear approved safety glasses with side shields under your
helmet.
D Use protective screens or barriers to protect others from flash and
glare; warn others not to watch the arc.
D Wear protective clothing made from durable, flame-resistant mate-
rial (leather and wool) and foot protection.
WELDING can cause fire or explosion.
Welding on closed containers, such as tanks,
drums, or pipes, can cause them to blow up. Sparks
can fly off from the welding arc. The flying sparks, hot
burns. Accidental contact of electrode to metal objects can cause
sparks, explosion, overheating, or fire. Check and be sure the area is
safe before doing any welding.
D Protect yourself and others from flying sparks and hot metal.
D Do not weld where flying sparks can strike flammable material.
D Remove all flammables within 35 ft (10.7 m) of the welding arc. If
this is not possible, tightly cover them with approved covers.
D Be alert that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas.
D Watch for fire, and keep a fire extinguisher nearby.
D Be aware that welding on a ceiling, floor, bulkhead, or partition can
cause fire on the hidden side.
D Do not weld on closed containers such as tanks, drums, or pipes,
unless they are properly prepared according to AWS F4.1 (see
Safety Standards).
D Connect work cable to the work as close to the welding area as
practical to prevent welding current from traveling long, possibly
unknown paths and causing electric shock and fire hazards.
D Do not use welder to thaw frozen pipes.
D Remove stick electrode from holder or cut off welding wire at
contact tip when not in use.
D Wear oil-free protective garments such as leather gloves, heavy
shirt, cuffless trousers, high shoes, and a cap.
D Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding.
workpiece, and hot equipment can cause fires and
FLYING METAL can injure eyes.
D Welding, chipping, wire brushing, and grinding
cause sparks and flying metal. As welds cool,
they can throw off slag.
D Wear approved safety glasses with side
shields even under your welding helmet.
D Shut off shielding gas supply when not in use.
D Always ventilate confined spaces or use
approved air-supplied respirator.
HOT PARTS can cause severe burns.
D Do not touch hot parts bare handed.
D Allow cooling period before working on gun or
torch.
MAGNETIC FIELDS can affect pacemakers.
D Pacemaker wearers keep away.
D Wearers should consult their doctor before
going near arc welding, gouging, or spot
welding operations.
NOISE can damage hearing.
Noise from some processes or equipment can
damage hearing.
D Wear approved ear protection if noise level is
high.
CYLINDERS can explode if damaged.
Shielding gas cylinders contain gas under high
pressure. If damaged, a cylinder can explode. Since
gas cylinders are normally part of the welding
process, be sure to treat them carefully.
D Protect compressed gas cylinders from excessive heat, mechani-
cal shocks, slag, open flames, sparks, and arcs.
D Install cylinders in an upright position by securing to a stationary
support or cylinder rack to prevent falling or tipping.
D Keep cylinders away from any welding or other electrical circuits.
D Never drape a welding torch over a gas cylinder.
D Never allow a welding electrode to touch any cylinder.
D Never weld on a pressurized cylinder – explosion will result.
D Use only correct shielding gas cylinders, regulators, hoses, and fit-
tings designed for the specific application; maintain them and
associated parts in good condition.
D Turn face away from valve outlet when opening cylinder valve.
D Keep protective cap in place over valve except when cylinder is in
use or connected for use.
D Read and follow instructions on compressed gas cylinders,
associated equipment, and CGA publication P-1 listed in Safety
Standards.
OM-222 Page 2
1-3.Additional Symbols for Installation, Operation, and Maintenance
FIRE OR EXPLOSION hazard.
D Do not install or place unit on, over, or near
combustible surfaces.
D Do not install unit near flammables.
D Do not overload building wiring – be sure power supply system is
properly sized, rated, and protected to handle this unit.
FALLING UNIT can cause injury.
D Use lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.
D Use equipment of adequate capacity to lift and
support unit.
D If using lift forks to move unit, be sure forks are
long enough to extend beyond opposite side of
unit.
OVERUSE can cause OVERHEATING
D Allow cooling period; follow rated duty cycle.
D Reduce current or reduce duty cycle before
starting to weld again.
D Do not block or filter airflow to unit.
STATIC (ESD) can damage PC boards.
MOVING PARTS can cause injury.
D Keep away from moving parts such as fans.
D Keep all doors, panels, covers, and guards
closed and securely in place.
H.F. RADIATION can cause interference.
D High-frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communications equipment.
D Have only qualified persons familiar with
electronic equipment perform this installation.
D The user is responsible for having a qualified electrician prompt-
ly correct any interference problem resulting from the installation.
D If notified by the FCC about interference, stop using the
equipment at once.
D Have the installation regularly checked and maintained.
D Keep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.
D Put on grounded wrist strap BEFORE handling
boards or parts.
D Use proper static-proof bags and boxes to
store, move, or ship PC boards.
MOVING PARTS can cause injury.
D Keep away from moving parts.
D Keep away from pinch points such as drive
rolls.
WELDING WIRE can cause injury.
D Do not press gun trigger until instructed to do
so.
D Do not point gun toward any part of the body,
other people, or any metal when threading
welding wire.
1-4.Principal Safety Standards
Safety in Welding and Cutting, ANSI Standard Z49.1, from American
Welding Society, 550 N.W. LeJeune Rd, Miami FL 33126
Safety and Health Standards, OSHA 29 CFR 1910, from Superintendent of Documents, U.S. Government Printing Office, Washington, D.C.
20402.
Recommended Safe Practices for the Preparation for Welding and Cutting of Containers That Have Held Hazardous Substances, American
Welding Society Standard AWS F4.1, from American W elding Society,
550 N.W. LeJeune Rd, Miami, FL 33126
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
ARC WELDING can cause interference.
D Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
D Be sure all equipment in the welding area is
electromagnetically compatible.
D To reduce possible interference, keep weld cables as short as
possible, close together, and down low, such as on the floor.
D Locate welding operation 100 meters from any sensitive elec-
tronic equipment.
D Be sure this welding machine is installed and grounded
according t o this manual.
D If interference still occurs, the user must take extra measures
such as moving the welding machine, using shielded cables,
using line filters, or shielding the work area.
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 1235 Jefferson Davis Highway,
Suite 501, Arlington, VA 22202.
Code for Safety in Welding and Cutting, CSA Standard W117.2, from
Canadian Standards Association, Standards Sales, 178 Rexdale
Boulevard, Rexdale, Ontario, Canada M9W 1R3.
Safe Practices For Occupation And Educational Eye And FaceProtection, ANSI Standard Z87.1, from American National Standards
Institute, 1430 Broadway, New York, NY 10018.
Cutting And Welding Processes, NFPA Standard 51B, from National
Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
OM-222 Page 3
1-5.EMF Information
Considerations About Welding And The Effects Of Low Frequency
Electric And Ma g n e t i c F i e l d s
Welding current, as it flows through welding cables, will cause electromagnetic fields. There has been and still is some concern about such
fields. However, after examining more than 500 studies spanning 17
years of research, a special blue ribbon committee of the National
Research Council concluded that: “The body of evidence, in the
committee’s judgment, has not demonstrated that exposure to power-
frequency electric and magnetic fields is a human-health hazard.”
However, studies are still going forth and evidence continues to be
examined. Until the final conclusions of the research are reached, you
may wish to minimize your exposure to electromagnetic fields when
welding or cutting.
To reduce magnetic fields in the workplace, use the following
procedures:
1. Keep cables close together by twisting or taping them.
2. Arrange cables to one side and away from the operator.
3. Do not coil or drape cables around your body.
4. Keep welding power source and cables as far away from operator as practical.
5. Connect work clamp to workpiece as close to the weld as possible.
About Pacemakers:
Pacemaker wearers consult your doctor first. If cleared by your doctor,
then following the above procedures is recommended.
OM-222 Page 4
SECTION 1 – CONSIGNES DE SECURITE – LIRE A VANT UTILISATION
som _nd_Fre 4/97
1-1.Signification des symboles
Signifie Mise en garde ! Soyez vigilant ! Cette procédure
présente des risques de danger ! Ceux-ci sont identifiés
par des symboles adjacents aux directives.
Ce groupe de symboles signifie Mise en garde ! Soyez vigilant ! Il y a des
Y Identifie un message de sécurité particulier.
. Signifie NOTA ; n’est pas relatif à la sécurité.
1-2.Dangers relatifs au soudage à l’arc
Y Les symboles présentés ci-après sont utilisés tout au long du
présent manuel pour attirer votre attention et identifier les risques
de danger. Lorsque vous voyez un symbole, soyez vigilant et
suivez les directives mentionnées afin d’éviter tout danger. Les
consignes de sécurité présentées ci-après ne font que résumer
l’information contenue dans les normes de sécuritéénumérées
à la section 1-5. Veuillez lire et respecter toutes ces normes de
sécurité.
Y L’installation, l’utilisation, l’entretien et les réparations ne doi-
vent être confiés qu’à des personnes qualifiées.
Y Au cours de l’utilisation, tenir toute personne à l’écart et plus par-
ticulièrement les enfants.
UN CHOC ÉLECTRIQUE peut tuer.
risques de danger reliés aux CHOCS ÉLECTRIQUES, aux PIÈCES EN
MOUVEMENT et aux PIÈCES CHAUDES. Reportez-vous aux symboles
et aux directives ci-dessous afin de connaître les mesures à prendre pour
éviter tout danger.
D N’utiliser qu’un matériel en bon état. Réparer ou remplacer sur-le-
champ les pièces endommagées. Entretenir l’appareil conformément
à ce manuel.
D Porter un harnais de sécurité quand on travaille en hauteur.
D Maintenir solidement en place tous les panneaux et capots.
D Fixer le câble de retour de façon à obtenir un bon contact métal-métal
avec la pièce à souder ou la table de travail, le plus près possible de l a
soudure.
D Isoler la pince de masse quand pas mis à la pièce pour éviter le contact
avec tout objet métallique.
Un simple contact avec des pièces électriques peut
provoquer une électrocution ou des blessures graves.
L’électrode et le circuit de soudage sont sous tension
dès que l’appareil est sur ON. Le circuit d’entrée et les
tension à ce moment-là. En soudage semi-automatique ou automatique,
le fil, le dévidoir, le logement des galets d’entraînement et les pièces
métalliques en contact avec le fil de soudage sont sous tension. Des
matériels mal installés ou mal mis à la terre présentent un danger.
D Ne jamais toucher les pièces électriques sous tension.
D Porter des gants et des vêtements de protection secs ne comportant
pas de trous.
D S’isoler de la pièce et de la terre au moyen de tapis ou d’autres
moyens isolants suffisamment grands pour empêcher le contact physique éventuel avec la pièce ou la terre.
D Ne pas se servir de source électrique àcourant électrique dans les zones
humides, dans les endroits confinés ou là où on risque de tomber.
D Se servir d’une source électrique àcourant électrique UNIQUEMENT si le
procédé de soudage le demande.
D Si l’utilisation d’une source électrique àcourant électrique s’avère néces-
saire, se servir de la fonction de télécommande si l’appareil en est équipé.
D Couper l’alimentation ou arrêter le moteur avant de procéder à l’instal-
lation, à la réparation ou à l’entretien de l’appareil. Déverrouiller
l’alimentation selon la norme OSHA 29 CFR 1910.147 (voir normes de
sécurité).
D Installer et mettre à la terre correctement cet appareil conformément à
son manuel d’utilisation et aux codes nationaux, provinciaux et
municipaux.
D Toujours v érifier la terre du cordon d’alimentation – Vérifier et s’assu-
rer que le fil de terre du cordon d’alimentation est bien raccordé à la
borne de terre du sectionneur ou que la fiche du cordon est raccordéeà une prise correctement mise à la terre.
D En effectuant les raccordements d’entrée fixer d’abord le conducteur
de mise à la terre approprié et contre-vérifier les connexions.
D Vérifier fréquemment le cordon d’alimentation pour voir s’il n’est pas
endommagé ou dénudé – remplacer le cordon immédiatement s’il est
endommagé– un câble dénudé peut provoquer une électrocution.
D Mettre l’appareil hors tension quand on ne l’utilise pas.
D Ne pas utiliser des câbles usés, endommagés, de grosseur insuffi-
sante ou mal épissés.
D Ne pas enrouler les câbles autour du corps.
D Si la pièce soudée doit être mise à la terre, le faire directement avec un
câble distinct – ne pas utiliser le connecteur de pièce ou le câble de
retour.
D Ne pas toucher l’électrode quand on est en contact avec la pièce, la
terre ou une électrode provenant d’une autre machine.
circuits internes de l’appareil sont également sous
Il y a DU COURANT CONTINU IMPORT ANT dans les
convertisseurs après la suppression de l’alimenta-
tion électrique.
D Arrêter les convertisseurs, débrancher le courant électrique, et dé-
charger les condensateurs d’alimentation selon les instructions
indiquées dans la partie entretien avant de toucher les pièces.
LES FUMÉES ET LES GAZ peuvent
être dangereux.
Le soudage génère des fumées et des gaz. Leur
inhalation peut être dangereux pour votre santé.
D Eloigner votre tête des fumées. Ne pas respirer
D A l’intérieur, ventiler la zone et/ou utiliser un échappement au niveau
de l’arc pour l’évacuation des fumées et des gaz de soudage.
D Si la ventilation est insuffisante, utiliser un respirateur à alimenta-
tion d’air homologué.
D Lire les spécifications de sécurité des matériaux (MSDSs) et les
instructions du fabricant concernant les métaux, les consommables, les revêtements, les nettoyants et les dégraisseurs.
D Travailler dans un espace fermé seulement s’il est bien ventilé ou en
portant un respirateur à alimentation d’air. Demander toujours à un
surveillant dûment formé de se tenir à proximité. Des fumées et des
gaz de soudage peuvent déplacer l’air et abaisser le niveau d’oxygène provoquant des blessures ou des accidents mortels. S’assurer que l’air de respiration ne présente aucun danger.
D Ne pas souder dans des endroits situés à proximité d’opérations de
dégraissage, de nettoyage ou de pulvérisation. La chaleur et les
rayons de l ’arc peuvent réagir en présence de vapeurs et former des
gaz hautement toxiques et irritants.
D Ne pas souder des métaux munis d’un revêtement, tels que l’acier
galvanisé, plaqué en plomb ou au cadmium à moins que le revêtement n’ait été enlevé dans la zone de soudure, que l’endroit soit bien
ventilé, et si nécessaire, en portant un respirateur à alimentation
d’air. Les revêtements et tous les métaux renfermant ces éléments
peuvent dégager des fumées toxiques en cas de soudage.
les fumées.
OM-222 Page 5
LES RAYONS DE L ’ARC peuvent pro-
voquer des brûlures dans les yeux et
sur la peau.
Le rayonnement de l’arc du procédé de soudage
génère des rayons visibles et invisibles intenses
des brûlures dans les yeux et sur la peau. Des étincelles sont projetées
pendant le soudage.
D Porter un casque de soudage muni d’un écran de filtre approprié pour
protéger votre visage et vos yeux pendant le soudage ou pour regarder (voir ANSI Z49.1 et Z87.1 énuméré dans les normes de sécurité).
D Porter des protections approuvés pour les oreilles si le niveau sondre est
trop élevé.
D Utiliser des écrans ou des barrières pour protéger des tiers de l’éclair
et de l’éblouissement; demander aux autres personnes de ne pas regarder l’arc.
D Porter des vêtements de protection constitué dans une matière dura-
ble, résistant au feu (cuir ou laine) et une protection des pieds.
(ultraviolets et infrarouges) susceptibles de provoquer
LES ACCUMULATIONS DE GAZ risquent de provoquer des blessures ou
même la mort.
D Fermer l’alimentation du gaz protecteur en cas de
non utilisation.
D Veiller toujours à bien aérer les espaces confinés ou se servir d’un respi-
rateur d’adduction d’air homologué.
DES PIÈCES CHAUDES peuvent provoquer des brûlures graves.
D Ne pas toucher des parties chaudes à mains nues
D Prévoir une période de refroidissement avant
d’utiliser le pistolet ou la torche.
LE SOUDAGE peut provoquer un
incendie ou une explosion.
Le soudage effectué sur des conteneurs fermés tels
que des réservoirs, tambours ou des conduites peut
provoquer leur éclatement. Des étincelles peuvent être
les, des pièces chaudes et des équipements chauds peut provoquer des
incendies et des brûlures. Le contact accidentel de l’électrode avec des
objets métalliques peut provoquer des étincelles, une explosion, un
surchauffement o u u n incendie. A vant de commencer le soudage, vérifier
et s’assurer que l’endroit ne présente pas de danger.
D Se protéger et d’autres personnes de la projection d’étincelles et de
métal chaud.
D Ne pas souder dans un endroit là où des étincelles peuvent tomber sur
des substances inflammables.
D Déplacer toutes les substances inflammables à une distance de 10,7
m de l’arc de soudage. En cas d’impossibilité les recouvrir soigneusement avec des protections homologués.
D Des étincelles et des matériaux chauds du soudage peuvent facile-
ment passer dans d’autres zones en traversant de petites fissures et
des ouvertures.
D Surveiller tout déclenchement d’incendie et tenir un extincteur à proxi-
mité.
D Le soudage effectué sur un plafond, plancher, paroi ou séparation
peut déclencher un incendie de l’autre côté.
D Ne pas effectuer le soudage sur des conteneurs fermés tels que des
réservoirs, tambours, ou conduites, à moins qu’ils n’aient été préparés correctement conformément à AWS F4.1 (voir les normes de
sécurité).
D Brancher le câble sur la pièce le plus près possible de la zone de sou-
dage pour éviter le transport du courant sur une longue distance par
des chemins inconnus éventuels en provoquant des risques d’élec-
trocution et d’incendie.
D Ne pas utiliser le poste de soudage pour dégeler des conduites ge-
lées.
D En cas de non utilisation, enlever la baguette d’électrode du porte-
électrode ou couper le fil à la pointe de contact.
D Porter des vêtements de protection dépourvus d’huile tels que des
gants en cuir, une chemise en matériau lourd, des pantalons sans re-
vers, des chaussures hautes et un couvre chef.
D Avant de souder, retirer toute substance combustible de vos poches
telles qu’un allumeur au butane ou des allumettes.
projetées de l’arc de soudure. La projection d’étincel-
DES PARTICULES VOLANTES
peuvent blesser les yeux.
D Le soudage, l’écaillement, le passage de la pièce
à la brosse en fil de fer, et le meulage génèrent
lantes. Pendant la période de refroidissement des soudures, elles ris-
quent de projeter du laitier.
D Porter des lunettes de sécurité avec écrans latéraux ou un écran facial.
des étincelles et des particules métalliques vo-
LES CHAMPS MAGNÉTIQUES peuvent
affecter les stimulateurs cardiaques.
D Porteurs de stimulateur cardiaque, restez à distance.
D Les porteurs d’un stimulateur cardiaque doivent
d’abord consulter leur médecin avant de s’approcher
des opérations de soudage à l’arc, de gougeage ou
de soudage par points.
LE BRUIT peut affecter l’ouïe.
Le bruit des processus et des équipements peut affecter
l’ouïe.
D Porter des protections approuvés pour les oreilles si
le niveau sondre est trop élevé.
Si des BOUTEILLES sont endommagées, elles pourront exploser.
Des bouteilles de gaz protecteur contiennent du gaz
sous haute pression. Si une bouteille est endommagée, elle peut exploser. Du fait que les bouteilles de gaz
manipuler avec précaution.
D Protéger les bouteilles de gaz comprimé d’une chaleur excessive,
des chocs mécaniques, du laitier, des flammes ouvertes, des étin-
celles et des arcs.
D Placer les bouteilles debout en les fixant dans un support stationnai-
re ou dans un porte-bouteilles pour les empêcher de tomber ou de
se renverser.
D Tenir les bouteilles éloignées des circuits d e soudage ou autres cir-
cuits électriques.
D Ne jamais placer une torche de soudage sur une bouteille à gaz.
D Une électrode de soudage ne doit jamais entrer en contact avec une
bouteille.
D Ne jamais souder une bouteille pressurisée – risque d’explosion.
D Utiliser seulement des bouteilles de gaz protecteur, régulateurs,
tuyaux et raccords convenables pour cette application spécifique;
les maintenir ainsi que les éléments associés en bon état.
D Ne pas tenir la tête en face de la sortie en ouvrant la soupape de la
bouteille.
D Maintenir le chapeau de protection sur la soupape, sauf en cas d’uti-
lisation ou de branchement de la bouteille.
D Lire et suivre les instructions concernant les bouteilles de gaz com-
primé, les équipements associés et les publications P-1 CGA énumérées dans les normes de sécurité.
font normalement partie du procédé de soudage, les
OM-222 Page 6
1-3.Dangers supplémentaires en relation avec l’installation, le fonctionnement
et la maintenance
Risque D’INCENDIE OU
D’EXPLOSION.
D Ne pas placer l’appareil sur, au-dessus ou à proxi-
mité de surfaces infllammables.
D Ne pas installer l’appareil à proximité de produits inflammables
D Ne pas surcharger l’installation électrique – s”assurer que l’alimen-
tation est correctement dimensionné et protégé avant de mettre
l’appareil en service.
LA CHUTE DE L’APPAREIL peut
blesser.
D Utiliser l’anneau de levage uniquement pour sou-
lever l’appareil, NON PAS les chariot, les bouteilles de gaz ou tout autre accessoire.
D Utiliser un engin d’une capacité appropriée pour
D En utilisant des fourches de levage pour déplacer l’unité, s’assurer
que les fourches sont suffisamment longues pour dépasser du côté
opposé de l’appareil.
soulever l’appareil.
L’EMPLOI EXCESSIF peut
SURCHAUFFER L’ÉQUIPEMENT.
D Prévoir une période de refroidissement, respec-
ter le cycle opératoire nominal.
D Réduire le courant ou le cycle opératoire avant de
D Ne pas obstruer les passages d’air du poste.
recommancer le soudage.
DES ORGANES MOBILES peuvent
provoquer des blessures.
D Rester à l’écart des organes mobiles comme le
ventilateur.
D Maintenir fermés et fixement en place les portes,
panneaux, recouvrements et dispositifs de
protection.
LE RAYONNEMENT HAUTE FRÉ-
QUENCE (H.F.) risque de provoquer
des interférences.
D Le rayonnement haute frequence peut provoquer
des interférences avec les équipements de radio–navigation e t d e communication, les services
D Demander seulement à des personnes qualifiées familiarisées
avec des équipements électroniques de faire fonctionner l’installa-
tion.
D L’utilisateur est tenu de faire corriger rapidement par un électricien
qualifié les interférences résultant de l’installation.
D Si le FCC signale des interférences, arrêter immédiatement l’appa-
reil.
D Effectuer régulièrement le contrôle et l’entretien de l’installation.
D Maintenir soigneusement fermés les portes et les panneaux des
sources de haute fréquence, maintenir les éclateurs à une distance
correcte et utiliser une terre et et un blindage pour réduire les interfé-
rences éventuelles.
de sécurité et les ordinateurs.
LE SOUDAGE À L’ARC risque de
provoquer des interférences.
LES CHARGES ÉLECTROSTATI-
QUES peuvent endommager les circuits imprimés.
D Établir la connexion avec la barrette de terre
avant de manipuler des cartes ou des pièces.
D Utiliser des pochettes et des boîtes antistatiques
pour stocker, déplacer ou expédier des cartes de
circuits imprimes.
DES ORGANES MOBILES peuvent
provoquer des blessures.
D Ne pas s’approcher des organes mobiles.
D Ne pas s’approcher des points de coincement
tels que des rouleaux de commande.
LES FILS DE SOUDAGE peuvent provoquer des blessures.
D Ne pas appuyer sur la gachette avant d’en avoir
reçu l’instruction.
D Ne pas diriger le pistolet vers soi, d’autres person-
nes ou toute pièce mécanique en engageant le fil
de soudage.
D L’énergie électromagnétique risque de provoquer
des interférences pour l’équipement électronique
sensible tel que les ordinateurs et l’équipement
D Veiller à ce que tout l’équipement de la zone de soudage soit com-
patible électromagnétiquement.
D Pour réduire la possibilité d’interférence, maintenir les câbles de
soudage aussi courts que possible, les grouper, et les poser aussi
bas que possible (ex. par terre).
D Veiller à souder à une distance de 100 mètres de tout équipement
électronique sensible.
D Veiller à ce que ce poste de soudage soit posé et mis à la terre
conformément à ce mode d’emploi.
D En cas d’interférences après avoir pris les mesures précédentes, il
incombe à l’utilisateur de prendre des mesures supplémentaires tel-
les que le déplacement du poste, l’utilisation de câbles blindés, l’utilisation de filtres de ligne ou la pose de protecteurs dans la zone de
travail.
commandé par ordinateur tel que les robots.
LES CHAMPS MAGNÉTIQUES peuvent
affecter les stimulateurs cardiaques.
D Porteurs de stimulateur cardiaque, restez à dis-
tance.
D Les porteurs d’un stimulateur cardiaque doivent
d’abord consulter leur médecin avant de s’appro-
cher des opérations de soudage à l’arc, de gou-
geage ou de soudage par points.
OM-222 Page 7
1-4.Principales normes de sécurité
Safety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel-
ding Society, 550 N.W. Lejeune Rd, Miami FL 33126
Safety and Health Sandards, OSHA 29 CFR 1910, du Superintendent
of Documents, U.S. Government Printing Office, Washington, D.C.
20402.
Recommended Safe Practice for the Preparation for Welding and Cutting of Containers That Have Held Hazardous Substances, norme A WS
F4.1, de l ’American Welding Society, 550 N.W. Lejeune Rd, Miami FL
33126
National Electrical Code, NFPA Standard 70, de la National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
de la Compressed Gas Association, 1235 Jefferson Davis Highway,
Suite 501, Arlington, VA 22202.
Règles de s écurité en soudage, coupage et procédés connexes, norme
CSA W117.2, de l’Association canadienne de normalisation, vente de
normes, 178 Rexdale Boulevard, Rexdale (Ontario) Canada M9W 1R3.
Safe Pra ctices For Occupation And Educational Eye And Face Protection, norme ANSI Z87.1, de l’American National Standards Institute,
1430 Broadway, New York, NY 10018.
Cutting and Welding Processes, norme NFPA 51B, de la National Fire
Protection Association, Batterymarch Park, Quincy, MA 02269.
1-5.Information sur les champs électromagnétiques
Données sur le soudage électrique et sur les ef fets, pour l ’organisme,
des champs magnétiques basse fréquence
L’extrait suivant est tiré des conclusions générales du document intitulé
Biological Effects of Power Frequency Electric & Magnetic Fields –
Background Paper, OTA–BP–E–53 (Washington DC : U.S. Government Printing Office, mai 1989), publié par le Office of Technology
Assessment du Congrès américain : «... il existe maintenant d’abondantes données scientifiques compilées à la suite d’expériences sur la
cellule ou d’études sur des animaux et des humains, qui montrent clairement que les champs électromagnétiques basse fréquence peuvent
avoir des effets sur l’organisme et même y produire des transformations. Même s’il s’agit de travaux de très grande qualité, les résultats
sont complexes. Cette démarche scientifique ne nous permet pas
d’établir un tableau d’ensemble cohérent. Pire encore, elle ne nous permet pas de tirer des conclusions finales concernant les risques
éventuels, n i d ’offrir des conseils sur les mesures à prendre pour réduire sinon éliminer les risques éventuels». (Traduction libre)
Afin de réduire les champs électromagnétiques dans l’environnement
de travail, respecter les consignes suivantes :
1Garder les câbles ensembles en les torsadant ou en les
attachant avec du ruban adhésif.
2Mettre tous les câbles du côté opposé de l’opérateur.
3Ne pas courber pas et ne pas entourer pas les câbles autour de
vous.
4Garder le poste de soudage et les câbles le plus loin possible de
vous.
5Relier la pince de masse le plus près possible de la zone de
soudure.
Consignes relatives aux stimulateurs cardiaques :
Les consignes mentionnées précédemment font partie de celles destinées aux personnes ayant recours à un stimulateur cardiaque. Veuillez
consulter votre médecin pour obtenir plus de détails.
OM-222 Page 8
SECTION 2 – DEFINITIONS
2-1.General Precautionary Label
1/96
11.11.2
2
33.13.23.3
44.1
56
2.1
+
2.2
+
2.3
+
+
1.3
Warning! Watch Out! There are
possible hazards as shown by the
symbols.
1Electric shock from welding
electrode or wiring can kill.
1.1 Wear dry insulating gloves.
Do not touch electrode with
bare hand. Do not wear wet or
damaged gloves.
1.2 Protect yourself from electric
shock by insulating yourself
from work and ground.
1.3 Disconnect input plug or
power before working on
machine.
2Breathing welding fumes can
be hazardous to your health.
2.1 Keep your head out of the
fumes.
2.2 Use forced ventilation or local
exhaust to remove the fumes.
2.3 Use ventilating fan to remove
fumes.
3Welding sparks can cause
explosion or fire.
3.1 Keep flammables away from
welding. Do not weld near
flammables.
3.2 Welding sparks can cause
fires. Have a fire extinguisher
nearby, and have a
watchperson ready to use it.
3.3 Do not weld on drums or any
closed containers.
4Arc rays can burn eyes and
injure skin.
4.1 Wear hat and safety glasses.
Use ear protection and button
shirt collar. Use welding
helmet with correct shade of
filter. Wear complete body
protection.
5Become trained and read the
instructions before working on
the machine or welding.
6Do not remove or paint over
(cover) the label.
S-176 254-A
OM-222 Page 9
2-2.Input Connection Label
1234
1
?
?
56 879
2
V
A
1Warning! Watch Out! There
are possible hazards as
shown by the symbols.
2Electric shock from wiring can
kill.
3Disconnect input plug or
power before working on
machine.
4Read the Owner’s Manual
before working on this
machine.
5Consult rating label for input
?
V
3
5
3
4
S-179 290
power requirements, and
check power available at the
job site – they must match.
6Read Owner’s Manual and
inside labels for connection
points and procedures.
7Move jumper links as shown
on inside label to match
voltage at job site.
8Having a loop of extra length,
connect grounding conductor
first.
9Connect line input conductors
as shown on inside label –
double-check all connections,
jumper link positions, and
input voltage before applying
power.
1/96
2-3.Electric Shock And Airflow Label
123
2-4.Nameplate Safety Symbols
1
234
1
56
S-179 563
1Warning! Watch Out! There
are possible hazards as
shown by the symbols.
2Electric shock from wiring and
exposed weld terminals can
kill.
3Close door before turning on
unit.
1/96
1Warning! Watch Out! There
are possible hazards as
shown by the symbols.
2Electric shock from welding
electrode or wiring can kill.
3Sparks from arcing electrode
can cause explosion or fire –
disconnect cable for process
not in use.
4Read Owner’s Manual for
connection procedures.
5Electric shock from wiring can
kill.
6Disconnect input power
before working on unit or
making terminal strip
connections.
OM-222 Page 10
Nameplate D-179 389
2-5.Manufacturer’s Rating Labels For CE Products
. Match label to one on
unit. See Section 3-4.
OM-222 Page 11
2-6.Symbols And Definitions
Note
A
U
0
I
1
IP
Some symbols are found only on CE products.
Amperes
Temperature
OutputCircuit BreakerRemote
Protective Earth
(Ground)
OnOff
Rated No Load
Voltage (A verage)
Primary Current
Degree Of
Protection
U
I
Amperage Control/
Panel
Do Not Switch
While Welding
PositiveNegativeInput
Hz
Primary Voltage
1
Rated Welding
2
Current
Three-Phase
U
X
S
2
1
Gas Tungsten Arc
Welding (GT AW)
Arc Force (DIG)Percent
V
HertzDirect Current
Conventional Load
Voltage
Duty Cycle
KVAWork Connection
Shielded Metal Arc
Welding (SMAW)
Volts
Line Connection
Three-Phase
Transformer
Rectifier
Wire Feeder
Electrode
Connection
OM-222 Page 12
3-1.Specifications
SECTION 3 – INSTALLATION
Model
Model
300
Amp
450
Amp
650
Amp
*While idling
( ) Indicates specification differences for CE models
Rated
Welding
Welding
Output
300 A @
32 V olts
DC, 60%
Duty Cycle
450 A @
38 V olts
DC, 60%
Duty Cycle
650 A @
44 V olts
DC, 60%
Duty Cycle
Amp
Range DC
15 – 395
20 – 590
50 – 850
Maximum
Open-
Circuit
Voltage DC
72
(70)
72
(70)
72
(70)
Rating
3-2.Duty Cycle And Overheating
IP
200 V230 V380 V400 V440 V460 V575 VKVAKW
21M
21M
21M––
70
4.0*61 3.6*35 1.1*33 1.1*31 1.0*31 3.1*25 1.5*
102
3.5*89 3.1*54 1.5*51 1.4*47 1.2*45 1.5*36 1.2*
Amperes Input at Rated Load Output, 50 or 60 Hz,
Three-Phase
124
5.2*75 1.7*71 1.6*65 1.5*62 2.6*50 2.1*
Duty Cycle is percentage of 10 mi n utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
Y Exceeding duty cycle can
damage unit and void
warranty.
24.5
1.3*
35.5
1.2*
49.4
2.1*36 0.58*
13.8
0.67*
23.3
0.51*
Overheating
Example: 60% Duty Cycle =
6 Minutes Welding4 Minutes Resting
0
15
Minutes
A
OR
Reduce Duty Cycle
duty1 4/95 / Ref. SA-168 919
OM-222 Page 13
3-3.Volt-Ampere Curves
A. 300 Amp Model
B. 450 Amp Model
Volt-ampere curves show minimum and maximum voltage and
amperage output capabilities of
unit. Curves of other settings fall between curves shown.
3-9.Remote 14 Receptacle And Terminal Strip 1T Information
SocketTerminalInformation
AA24 volts ac. Protected by circuit breaker CB2.
24 VOLTS AC
REMOTE OUTPUT CONTROL
115 VOLTS AC
GND
REMOTE POWER ON/OFF
REMOTE VOLTAGE SENSING
BBContact closure to A completes 24 volts ac contactor control circuit.
CCCommand reference; 0 to +10 volts dc.
DDRemote control circuit common.
EE0 to +10 volts dc input command signal from remote control.
F*Current feedback; 0 to +10 volts dc, 1 volt per 100 amperes.
H*Voltage feedback; 0 to +10 volts dc, 1 volt per 10 arc volts.
60 Hertz Models300 Amp Model450 Amp Model650 Amp Model
Input Voltage200230460575200230460575230460575
Input Amperes At Rated Output706131251028945361246250
Max Recommended Standard Fuse
Rating In Amperes
Time-Delay
Normal Operating 311090453515012570501759070
Min Input Conductor Size In AWG/
Kcmil
Max Recommended Input Conductor
Length In Feet (Meters)
Min Grounding Conductor Size In
AWG/Kcmil
Reference: 1999 National Electrical Code (NEC)
1 Consult factory for circuit breaker applications.
2 “Time-Delay” fuses are UL class “RK5” .
3 “Normal Operating” (general purpose - no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and
above).
Input Voltage380400440380400440380400440
Input Amperes At Rated Output353331545147757165
Max Recommended Standard Fuse Rating In
Amperes
Time-Delay
1
1
50 Hertz Models
2
8070353012511050451507060
68101244810388
149
(45)
131
(40)
68101266810688
2
356
(108)
300 Amp Model
404035606050908080
342
(104)
136
(41)
180
(55)
450 Amp Model650 Amp Model
319
(97)
335
(102)
144
(44)
210
(64)
328
(100)
Normal Operating 3605050808070125110100
Min Input Conductor Size In AWG/Kcmil101010888666
Max Recommended Input Conductor Length
In Feet (Meters)
Min Grounding Conductor Size In AWG/Kcmil101010888668
Reference: 1999 National Electrical Code (NEC)
1 Consult factory for circuit breaker applications.
2 “Time-Delay” fuses are UL class “RK5” .
3 “Normal Operating” (general purpose - no intentional delay) fuses are UL class “K5” (up to and including 60 amp), and UL class “H” ( 65 amp and
above).
243
(74)
269
(82)
326
(99)
218
(66)
241
(73)
292
(89)
219
(67)
242
(74)
293
(89)
OM-222 Page 19
3-12. Placing Jumper Links
Check input voltage available at
site.
1Jumper Link Label
Check label – only one is on unit.
2Jumper Links
Move jumper links to match input
voltage.
Close access door, or go on to
Section 3-13.
1
220 VOLTS
(FACTORY OPTION)
Tools Needed:
3/8 in
200 VOLTS
230 VOLTS
3/8 in
230 VOLTS460 VOLTS
Ref. S-174 976-A
575 VOLTS460 VOLTS
Ref. S-174 973-A
380 VOLTS400 VOLTS440 VOLTS
Ref. S-174 975-A
2
Do not overtighten
jumper link nuts.
Ref. ST-800 103-A
OM-222 Page 20
3-13. Connecting Input Power
Connect GND/PE
Conductor First.
2
L1 (U)
L2 (V)
L3 (W)
1Input And Grounding
Conductors
See Section 3-11.
2Line Disconnect Device
See Section 3-11.
3Reed Switch (Ground
Current Sensor) (Optional)
4Grounding Conductor
If unit is equipped with optional
ground current sensor, route
grounding conductor through reed
switch two times and connect to
ground terminal.
Close access door.
1
4
Tools Needed:
3/8 in
3/8 in
IMPORTANT
3
Input Contactor
L1 (U)
L2 (V)
L3 (W)
3
GND/
Connect GND/PE
PE
Conductor First.
ST-800 103-B / Ref. ST-801 116
OM-222 Page 21
SECTION 4 – OPERATION
4-1.Controls (Non CE Models)
300 Amp Model Shown
12
1Polarity Selector Switch (Optional On 50
Hz Models)
To change polarity on models not equipped
with a Polarity Selector switch, reverse work
and electrode cables at the weld output terminals (see Section 3-8).
Y Turn Off Power before reversing
cables.
2Arc Force (Dig) Control
Control increases SMAW short-circuit amper-
age which allows the operator to use a very
3
89
short arc length without sticking the electrode.
Set control at 0 for normal welding amperage.
Turn clockwise to increase short-circuit
amperage.
3Hot Start Switch
Turn switch On for SMAW and Off for GTAW
welding.
4Amperage Adjustment Control
5Digital Meters (Optional)
6Power Switch With Indicator Light
7High Temperature Shutdown Light
4
8Remote Amperage Control Switch
For front panel control, place switch in Panel
position. For remote control, place switch in
Remote position, and connect remote device
(see Section 3-10).
9Output Switch (Contactor)
For front panel control of output, place switch
in Panel position. For remote control of output,
place switch in Remote position, and connect
remote device (see Section 3-10).
Y Turn Off power before connecting re-
mote device.
5
7
6
Ref. ST-165 596-D
OM-222 Page 22
4-2.Controls (CE Models)
300 Amp Model Shown
1
1Polarity Selector Switch (Optional On 50
Hz Models)
To change polarity on models not equipped
with a Polarity Selector switch, reverse work
and electrode cables at the weld output terminals (see Section 3-8).
Y Turn Off Power before reversing
cables.
2Arc Force (Dig) Control
Control increases SMAW short-circuit amper-
age which allows the operator to use a very
2
short arc length without sticking the electrode.
Set control at 0 for normal welding amperage.
Turn clockwise to increase short-circuit
amperage.
3Hot Start Switch
Turn switch On for SMAW and Off for GTAW
welding.
4Amperage Adjustment Control
5Digital Meters (Optional)
6Power Switch With Indicator Light
7High Temperature Shutdown Light
35
89
4
67
Ref. ST-173 450-B
8Remote Amperage Control Switch
For front panel control, place switch in Panel
position. For remote control, place switch in
Remote position, and connect remote device
(see Section 3-10).
9Output Switch (Contactor)
For front panel control of output, place switch
in Panel position. For remote control of output,
place switch in Remote position, and connect
remote device (see Section 3-10).
Y Turn Off power before connecting re-
mote device.
SECTION 5 – MAINTENANCE AND TROUBLESHOOTING
5-1.Routine Maintenance
Y Disconnect power before maintaining.
3 Months
Replace
unreadable
labels.
6 Months
Blow out or
vacuum inside.
During heavy
service, clean monthly.
Repair or
replace
cracked
weld cable.
OR
Clean and
tighten weld
terminals.
OM-222 Page 23
5-2.Fuse F1
Tools Needed:
3/8 in
5-3.Troubleshooting
TroubleRemedy
No weld output; unit completely inoperative.
1
Place line disconnect switch in On position (see Section 3-13).
Y Turn Off power before open-
ing rear access door.
1Fuse F1 (See Parts List For
Rating)
Fuse F1 protects control transformer from overload. If F1 opens, weld
output and fan motor stops. Replace F1.
Ref. ST-800 101-C
Check fuse F1, and replace if necessary (see Section 5-2).
Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 3-13).
Check for proper input power connections (see Section 3-13).
Check for proper jumper link position (see Section 3-12).
No weld output; Power switch pilot light
on; fan on.
Unit provides only maximum or minimum weld output.
Erratic or improper weld output.Use proper size and type of weld cable (see Section 3-8).
No 115 volts ac output at duplex receptacle, Remote 14 receptacle, or terminal strip 1T.
No 24 volts ac output at Remote 14 receptacle, or terminal strip 1T.
If using remote control, place Output (Contactor) switch in Remote 14 position, and connect remote
control (see Sections 3-9 and 3-10). If remote is not being used, place switch in On position.
Check, repair, or replace remote control.
Unit overheated. Allow unit to cool with fan On (see Section 3-2).
Have Factory Authorized Service Agent check control board PC1.
Have Factory Authorized Service Agent check control board PC1 and hall device HD1.
Clean and tighten all weld connections.
Check position of Polarity selector switch (see Section 4-1).
Have Factory Authorized Service Agent check control board PC1 and hall device HD1.
Reset circuit breaker CB1 (see Section 3-7).
Reset circuit breaker CB2 (see Section 3-7).
Fan not operating. NOTE: fan only
runs when cooling is necessary.
OM-222 Page 24
Check for and remove anything blocking fan movement.
Have Factory Authorized Service Agent check fan motor.
SECTION 6 – ELECTRICAL DIAGRAM
For Primary Circuit Diagram Portion, refer to Circuit Diagram
located inside wrapper of welding power source.
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
*Recommended Spare Parts.
♦Part of Option 042 983 Ground Current Sensor
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
OM-222 Page 28
Quantity
Item
No.
Dia.
Mkgs.
Part
No.
Description
Model
302452652
Figure 7-2. Panel, Front w/Components (Fig 7-1 Item 28)
♦Standard w/60 Hz/Optional w/50 Hz
♦♦Part of Option 042 983 Ground Current Sensor
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
♦♦♦Optional
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested
Replacement Parts. Model and serial number required when ordering parts from your local distributor.
OM-222 Page 32
Warranty Questions?
Call
1-877-HOBART1
for your local
Hobart distributor.
Service
Y ou always get the fast,
reliable response you
need. Most replacement
parts can be in your
hands in 24 hours.
Support
Need fast answers to the
tough welding questions?
Contact your distributor or
call 1-800-332-3281. The
expertise of the distributor
and Hobart is there to
help you, every step of
the way.
Effective January 1, 2000
(Equipment with a serial number preface of “LA” or newer)
This limited warranty supersedes all previous Hobart warranties and is exclusive with no other
LIMITED WARRANTY – Subject to the terms and conditions
below, Hobart Welding Products., Troy, Ohio, warrants to its
original ret a i l p urchaser that new Hobart equipment sold after
the effective date of this limited warranty is free of defects in
material and workmanship at the time it is shipped by Hobart.
THIS WARRANTY IS EXPRESSL Y IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.
Within the warranty periods listed below, Hobart will repair or
replace any warranted parts or components that fail due to
such defects in material or workmanship. Hobart must be
notified in writing within thirty (30) days of such defect or
failure, at which time Hobart will provide instructions on the
warranty claim procedures to be followed.
Hobart shall honor warranty claims on warranted equipment
listed below in the event of such a failure within the warranty
time periods. All warranty time periods start on the date that
the equipment was delivered to the original retail purchaser, or
one year after the equipment is sent to a North American
distributor or eighteen months after the equipment is sent to an
International distributor.
1. 5 Years Parts – 3 Years Labor
* Original main power rectifiers
* Inverters (input and output rectifiers only)
2. 3 Years — Parts and Labor
* Transformer/Rectifier Power Sources
* Plasma Arc Cutting Power Sources
* Semi-Automatic and Automatic Wire Feeders
* Inverter Power Supplies
* Intellitig
* Engine Driven Welding Generators
(NOTE: Engines are warranted separately by
the engine manufacturer.)
3. 1 Year — Parts and Labor
* DS-2 Wire Feeder
* Motor Driven Guns (w/exception of Spoolmate
185 & Spoolmate 250)
* Process Controllers
* Positioners and Controllers
* Automatic Motion Devices
* RFCS Foot Controls
* Induction Heating Power Sources
* Water Coolant Systems
* HF Units
* Grids
* Maxstar 140
* Spot Welders
* Load Banks
* Hobart Cyclomatic Equipment
* Running Gear/Trailers
* Plasma Cutting Torches (except APT & SAF
Models)
* Field Options
(NOTE: Field options are covered under True
Bluefor the remaining warranty period of the
product they are installed in, or for a minimum of
one year — whichever is greater.)
4. 6 Months — Batteries
5. 90 Days — Parts
* MIG Guns/TIG Torches
* Induction Heating Coils and Blankets
cutting nozzles, contactors, brushes, slip rings,
relays or parts that fail due to normal wear.
2. Items furnished by Hobart, but manufactured by others,
such as engines or trade accessories. These items are
covered by the manufacturer’s warranty, if any.
3. Equipment that has been modified by any party other
than Hobart, or equipment that has been improperly
installed, improperly operated or misused based upon
industry standards, or equipment which has not had
reasonable and necessary maintenance, or equipment
which has been used for operation outside of the
specifications for the equipment.
HOBART PRODUCTS ARE INTENDED FOR PURCHASE
AND USE BY COMMERCIAL/INDUSTRIAL USERS AND
PERSONS TRAINED AND EXPERIENCED IN THE USE
AND MAINTENANCE OF WELDING EQUIPMENT.
In the event of a warranty claim covered by this warranty, the
exclusive remedies shall be, at Hobart’s option: (1) repair; or
(2) replacement; or, where authorized in writing by Hobart in
appropriate cases, (3) the reasonable cost of repair or
replacement at an authorized Hobart service station; or (4)
payment of or credit for the purchase price (less reasonable
depreciation bas e d u p o n actual use ) upon return of the goods
at customer’s risk and expense. Hobart’s option of repair or
replacement will be F.O.B., Factory at Appleton, Wisconsin, or
F.O.B. at a Hobart authorized service facility as determined by
Hobart. Therefore no compensation or reimbursement for
transportation costs of any kind will be allowed.
TO THE EXTENT PERMITTED BY LAW, THE REMEDIES
PROVIDED HEREIN ARE THE SOLE AND EXCLUSIVE
REMEDIES. IN NO EVENT SHALL HOBART BE LIABLE
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING LOSS OF
PROFIT), WHETHER BASED ON CONTRACT, TORT OR
ANY OTHER LEGAL THEORY.
ANY EXPRESS WARRANTY NOT PROVIDED HEREIN
AND ANY IMPLIED WARRANTY, GUARANTY OR
REPRESENTATION AS TO PERFORMANCE, AND ANY
REMEDY FOR BREACH OF CONTRACT TORT OR ANY
OTHER LEGAL THEORY WHICH, BUT FOR THIS
PROVISION, MIGHT ARISE BY IMPLICATION,
OPERATION OF LAW, CUSTOM OF TRADE OR COURSE
OF DEALING, INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE, WITH RESPECT TO ANY AND ALL
EQUIPMENT FURNISHED BY HOBART IS EXCLUDED
AND DISCLAIMED BY HOBART.
Some states in the U.S.A. do not allow limitations of how long
an implied warranty lasts, or the exclusion of incidental,
indirect, special or consequential damages, so the above
limitation or exclusion may not apply to you. This warranty
provides specific legal rights, and other rights may be
available, but may vary from state to state.
In Canada, legislation in some provinces provides for certain
additional warranties or remedies other than as stated herein,
and to the extent that they may not be waived, the limitations
and exclusions set out above may not apply. This Limited
Warranty provides specific legal rights, and other rights may
be available, but may vary from province to province.
hobart standard 7/00
Owner’s Record
Please complete and retain with your personal records.
Model NameSerial/Style Number
Purchase Date(Date which equipment was delivered to original customer.)
Distributor
Address
City
StateZip
Resources Available
Always provide Model Name and Serial/Style Number.
To locate a Distributor,
retail or service location:
Call 1-877-Hobart1 or visit our website at
www.HobartWelders.com
For technical assistance:
Call 1-800-332-3281
Contact the Delivering Carrier for:
For assistance in filing or settling claims,
contact your distributor and/or equipment
manufacturer’s Transportation Department.
Contact your Distributor for:
Welding Supplies and Consumables
Options and Accessories
Personal Safety Equipment
Service and Repair
Replacement Parts
Training (Schools, Videos, Books)
Technical Manuals (Servicing Information
and Parts)
Circuit Diagrams
Welding Process Handbooks
File a claim for loss or damage during
shipment.
Hobart Welding Products
An Ill inoi s Tool Works Company
600 West Main Street
Troy, OH 45373 USA
For Technical Assistance:
Call1-800-332-3281
For Literature Or Nearest Dealer:
Call 1-877-Hobart1
PRINTED IN USA 2000 Hobart Welding Products. 1/00
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