Hobart Welding Products CYBERSTICK OM-314 User Manual

OM-314 029 861V

November 1999

Processes

Stick (SMAW) Welding

Description

Arc Welding Power Source



Cyberstick 250 AC/DC

From Hobart to You

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.

Working as hard as you
do – every power source
from Hobart is backed by
the best warranty in the
business.

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.

TABLE OF CONTENTS

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

25249.5 et seq.)

SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1. . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1. Symbol Usage 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2. Arc Welding Hazards 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3. Additional Symbols For Installation, Operation, And Maintenance 3. . . . . . . . . . . . . . . . . . . . .

1-4. Principal Safety Standards 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. EMF Information 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION 5. . . . . . . . . . . . . . . . . . . . .

1-1. Signification des symboles 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2. Dangers relatifs au soudage à l’arc 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement

et la maintenance 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4. Principales normes de sécurité 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5. Information sur les champs électromagnétiques 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 – INSTALLATION 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1. Specifications 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2. Duty Cycle And Overheating 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3. Volt-Ampere Curves 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4. Dimensions And Weights 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5. Selecting A Location 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6. Weld Cable Sizes 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7. Connecting To Weld Output Terminals 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8. Electrical Service Guide 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-9. Placing Jumper Links And Connecting Input Power 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 – OPERATION 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1. Controls 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 – MAINTENANCE & TROUBLESHOOTING 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1. Routine Maintenance 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2. Troubleshooting 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 – ELECTRICAL DIAGRAMS 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 6 – PARTS LIST 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPTIONS AND ACCESSORIES
WARRANTY

OM-314V

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_4/98

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 1-4. 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.

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 oxygen level causing 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-314 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-314 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 Face
Protection, 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-314 Page 3

1-5. EMF Information

Considerations About Welding And The Effects Of Low Frequency
Electric And Ma g netic Fields

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-314 Page 4

SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT

UTILISATION

som _nd_fre 4/98

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.

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 sécurité énumérées
à la section 1-4. 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.

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 raccordée
à 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.

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

Ce groupe de symboles signifie Mise en garde ! Soyez vigilant ! Il y a des
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.

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-314 Page 5