Thank you and congratulations on choosing Miller. 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.
That’s why when Niels Miller first started building arc welders in 1929,
he made sure his products offered long-lasting value and superior
quality. Like you, his customers couldn’t afford anything less. Miller
products had to be more than the best they could be. They had to be the
best you could buy.
Today, the people that build and sell Miller products continue the
tradition. They’re just as committed to providing equipment and service
that meets the high standards of quality and value established in 1929.
This Owner’s Manual is designed to help you get the most out of your
Miller 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 Miller you can count on years
of reliable service with proper maintenance.
And if for some reason the unit needs repair,
there’s a Troubleshooting section that will
help you figure out what the problem is. The
Miller is the first welding
equipment manufacturer in
the U.S.A. to be registered to
the ISO 9001:2000 Quality
System Standard.
parts list will then help you to decide the
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
Miller is backed by the most
hassle-free warranty in the
business.
Miller Electric manufactures a full line
of welders and welding related equipment.
For information on other quality Miller
products, contact your local Miller distributor to receive the latest full
line catalog or individual specification sheets. To locate your nearest
distributor or service agency call 1-800-4-A-Miller, or visit us at
www.MillerWelds.com on the web.
SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING
Warning: Protect yourself and others from injury — read and follow these precautions.
1-1.Symbol Usage
Means Warning! Watch Out! There are possible hazards
with this procedure! The possible hazards are shown in
the adjoining symbols.
rom _nd_3/05
Marks a special safety message.
Means “Note”; not safety related.
1-2.Arc Welding Hazards
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 1-7. Read and follow all Safety Standards.
Only qualified persons should install, operate, maintain, and re-
pair this unit.
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
machine internal circuits are also 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.
Do not touch live electrical parts.
Wear dry, hole-free insulating gloves and body protection.
Insulate yourself from work and ground using dry insulating mats or covers
big enough to prevent any physical contact with the work or ground.
Do not use AC output in damp areas, if movement is confined, or if there is a
danger of falling.
Use AC output ONLY if required for the welding process.
If AC output is required, use remote output control if present on unit.
Additional safety precautions are required when any of the following electri-
cally hazardous conditions are present: in damp locations or while wearing
wet clothing; on metal structures such as floors, gratings, or scaffolds;
when in cramped positions such as sitting, kneeling, or lying; or when there
is a high risk of unavoidable or accidental contact with the workpiece or
ground. For these conditions, use the following equipment in order presented: 1) a semiautomatic DC constant voltage (wire) welder, 2) a DC manual
(stick) welder, or 3) an AC welder with reduced open-circuit voltage. In most
situations, use of a DC, constant voltage wire welder is recommended.
And, do not work alone!
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).
Properly install and ground this equipment according to its Owner’s Manual
and national, state, and local codes.
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.
When making input connections, attach proper grounding conductor first −
double-check connections.
Frequently inspect input power cord for damage or bare wiring — replace
cord immediately if damaged — bare wiring can kill.
Turn off all equipment when not in use.
Do not use worn, damaged, undersized, or poorly spliced cables.
Do not drape cables over your body.
If earth grounding of the workpiece is required, ground it directly with a sep-
arate cable.
Do not touch electrode if you are in contact with the work, ground, or anoth-
er electrode from a different machine.
Use only well-maintained equipment. Repair or replace damaged parts at
once. Maintain unit according to manual.
live whenever the output is on. The input power circuit and
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.
Do not touch electrode holders connected to two welding machines at
the same time since double open-circuit voltage will be present.
Wear a safety harness if working above floor level.
Keep all panels and covers securely in place.
Clamp work cable with good metal-to-metal contact to workpiece or work-
table as near the weld as practical.
Insulate work clamp when not connected to workpiece to prevent contact
with any metal object.
Do not connect more than one electrode or work cable to any single weld
output terminal.
SIGNIFICANT DC VOLTAGE exists in inverters after stopping engine.
Stop engine on inverter 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.
Keep your head out of the fumes. Do not breathe the fumes.
If inside, ventilate the area and/or use local forced ventilation at the arc to
remove welding fumes and gases.
If ventilation is poor, wear an approved air-supplied respirator.
Read and understand the Material Safety Data Sheets (MSDSs) and the
manufacturer’s instructions for metals, consumables, coatings, cleaners,
and degreasers.
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 the oxygen level causing injury
or death. Be sure the breathing air is safe.
Do not weld in locations near degreasing, cleaning, or spraying operations.
The heat and rays of the arc can react with vapors to form highly toxic and
irritating gases.
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 while wearing an air-supplied respirator. The coatings and
any metals containing these elements can give off toxic fumes if welded.
BUILDUP OF GAS can injure or kill.
Shut off shielding gas supply when not in use.
Always ventilate confined spaces or use approved
air-supplied respirator.
ARC RAYS can burn eyes and skin.
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.
Wear an approved welding helmet fitted with a proper shade of filter lenses
to protect your face and eyes from arc rays and sparks when welding or
watching (see ANSI Z49.1 and Z87.1 listed in Safety Standards).
Wear approved safety glasses with side shields under your helmet.
Use protective screens or barriers to protect others from flash, glare, and
sparks; warn others not to watch the arc.
Wear protective clothing made from durable, flame-resistant material
(leather, heavy cotton, or wool) and foot protection.
OM-494 Page 1
Page 6
WELDING can cause fire or explosion.
HOT PARTS can cause severe burns.
Welding on closed containers, such as tanks, drums, or
pipes, can cause them to blow up. Sparks can fly off from the
equipment can cause fires and 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.
Remove all flammables within 35 ft (10.7 m) of the welding arc. If this is not
possible, tightly cover them with approved covers.
Do not weld where flying sparks can strike flammable material.
Protect yourself and others from flying sparks and hot metal.
Be alert that welding sparks and hot materials from welding can easily go
through small cracks and openings to adjacent areas.
Watch for fire, and keep a fire extinguisher nearby.
Be aware that welding on a ceiling, floor, bulkhead, or partition can cause
fire on the hidden side.
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).
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, sparks, and fire hazards.
Do not use welder to thaw frozen pipes.
Remove stick electrode from holder or cut off welding wire at contact tip
when not in use.
Wear oil-free protective garments such as leather gloves, heavy shirt, cuf-
fless trousers, high shoes, and a cap.
Remove any combustibles, such as a butane lighter or matches, from your
person before doing any welding.
Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B for hot
work and have a fire watcher and extinguisher nearby.
welding arc. The flying sparks, hot workpiece, and hot
FLYING METAL can injure eyes.
Welding, chipping, wire brushing, and grinding cause
sparks and flying metal. As welds cool, they can
throw off slag.
Wear approved safety glasses with side shields even
under your welding helmet.
Do not touch hot parts bare handed.
Allow cooling period before working on equipment.
To handle hot parts, use proper tools and/or wear
heavy, insulated welding gloves and clothing to prevent burns.
NOISE can damage hearing.
Noise from some processes or equipment can damage
hearing.
Wear approved ear protection if noise level is high.
MAGNETIC FIELDS can affect pacemakers.
Pacemaker wearers keep away.
Wearers should consult their doctor before going
near arc welding, gouging, or spot welding operations.
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.
Protect compressed gas cylinders from excessive heat, mechanical
shocks, physical damage, slag, open flames, sparks, and arcs.
Install cylinders in an upright position by securing to a stationary support or
cylinder rack to prevent falling or tipping.
Keep cylinders away from any welding or other electrical circuits.
Never drape a welding torch over a gas cylinder.
Never allow a welding electrode to touch any cylinder.
Never weld on a pressurized cylinder — explosion will result.
Use only correct shielding gas cylinders, regulators, hoses, and fittings de-
signed for the specific application; maintain them and associated parts in
good condition.
Turn face away from valve outlet when opening cylinder valve.
Keep protective cap in place over valve except when cylinder is in use or
connected for use.
Use the right equipment, correct procedures, and sufficient number of per-
sons to llift and move cylinders.
Read and follow instructions on compressed gas cylinders, associated
equipment, and Compressed Gas Association (CGA) publication P-1 listed
in Safety Standards.
1-3.Engine Hazards
BATTERY EXPLOSION can BLIND.
Always wear a face shield, rubber gloves, and protec-
tive clothing when working on a battery.
Stop engine before disconnecting or connecting bat-
tery cables or servicing battery.
Do not allow tools to cause sparks when working on a battery.
Do not use welder to charge batteries or jump start vehicles.
Observe correct polarity (+ and −) on batteries.
Disconnect negative (−) cable first and connect it last.
FUEL can cause fire or explosion.
Stop engine and let it cool off before checking or add-
ing fuel.
Do not add fuel while smoking or if unit is near any
sparks or open flames.
Do not overfill tank — allow room for fuel to expand.
Do not spill fuel. If fuel is spilled, clean up before starting engine.
Dispose of rags in a fireproof container.
Always keep nozzle in contact with tank when fueling.
OM-494 Page 2
MOVING PARTS can cause injury.
Keep away from fans, belts, and rotors.
Keep all doors, panels, covers, and guards closed
and securely in place.
Stop engine before installing or connecting unit.
Have only qualified people remove doors, panels, covers, or guards for
maintenance and troubleshooting as necessary.
To prevent accidental starting during servicing, disconnect negative (−)
battery cable from battery.
Keep hands, hair, loose clothing, and tools away from moving parts.
Reinstall doors, panels, covers, or guards when servicing is finished and
before starting engine.
Before working on generator, remove spark plugs or injectors to keep
engine from kicking back or starting.
Block flywheel so that it will not turn while working on generator compo-
nents.
HOT PARTS can cause severe burns.
Do not touch hot engine parts.
Allow cooling period before maintaining.
Wear protective gloves and clothing when working on
a hot engine.
Page 7
STEAM AND HOT COOLANT can burn.
If possible, check coolant level when engine is cold to
avoid scalding.
Always check coolant level at overflow tank, if pres-
ent on unit, instead of radiator (unless told otherwise
in maintenance section or engine manual).
If the engine is warm, checking is needed, and there is no overflow tank,
follow the next two statements.
Wear safety glasses and gloves and put a rag over radiator cap.
Turn cap slightly and let pressure escape slowly before completely re-
moving cap.
BATTERY ACID can BURN SKIN and EYES.
Do not tip battery.
Replace damaged battery.
Flush eyes and skin immediately with water.
ENGINE HEAT can cause fire.
Do not locate unit on, over, or near combustible
surfaces or flammables.
Keep exhaust and exhaust pipes way from flam-
mables.
ENGINE EXHAUST GASES can kill.
Use equipment outside in open, well-ventilated ar-
eas.
If used in a closed area, vent engine exhaust outside
and away from any building air intakes.
1-4.Compressed Air Hazards
BREATHING COMPRESSED AIR can
cause serious injury or death.
Do not use compressed air for breathing.
Use only for cutting, gouging, and tools.
COMPRESSED AIR can cause injury.
Wear approved safety goggles.
Do not direct air stream toward self or others.
TRAPPED AIR PRESSURE AND WHIPPING
HOSES can cause injury.
Release air pressure from tools and system before
servicing, adding or changing attachments, or opening compressor oil drain or oil fill cap.
EXHAUST SPARKS can cause fire.
Do not let engine exhaust sparks cause fire.
Use approved engine exhaust spark arrestor in re-
quired areas — see applicable codes.
HOT METAL from air arc cutting and
gouging can cause fire or explosion.
Do not cut or gouge near flammables.
Watch for fire; keep extinguisher nearby.
HOT PARTS can cause burns and injury.
Do not touch hot compressor or air system parts.
Let system cool down before touching or servicing.
READ INSTRUCTIONS.
Read Owner’s Manual before using or servicing unit.
Stop engine and release air pressure before
servicing.
Use only genuine Miller/Hobart replacement parts.
1-5.Additional Symbols For Installation, Operation, And Maintenance
FALLING UNIT can cause injury.
Use lifting eye to lift unit and properly installed acces-
sories only. Do not exceed maximum lift eye weight
rating (see Specifications).
Lift and support unit only with proper equipment and
correct procedures.
If using lift forks to move unit, be sure forks are long
enough to extend beyond opposite side of unit.
OVERHEATING can damage motors.
Turn off or unplug equipment before starting or stop-
ping engine.
Do not let low voltage and frequency caused by low
engine speed damage electric motors.
Do not connect 50 or 60 Hertz motors to the 100 Hertz receptacle where
applicable.
FLYING SPARKS can cause injury.
Wear a face shield to protect eyes and face.
Shape tungsten electrode only on grinder with proper
guards in a safe location wearing proper face, hand,
and body protection.
Sparks can cause fires — keep flammables away.
OVERUSE can cause OVERHEATING.
Allow cooling period; follow rated duty cycle.
Reduce current or reduce duty cycle before starting
to weld again.
Do not block or filter airflow to unit.
STATIC (ESD) can damage PC boards.
Put on grounded wrist strap BEFORE handling
boards or parts.
Use proper static-proof bags and boxes to store,
move, or ship PC boards.
TILTING OF TRAILER can cause injury.
Use tongue jack or blocks to support weight.
Properly install welding generator onto trailer accord-
ing to instructions supplied with trailer.
OM-494 Page 3
Page 8
READ INSTRUCTIONS.
ARC WELDING can cause interference.
Use only genuine MILLER/Hobart replacement
parts.
Perform engine and air compressor (if applicable)
maintenance and service according to this manual
and the engine/air compressor (if applicable) manuals.
H.F. RADIATION can cause interference.
High-frequency (H.F.) can interfere with radio naviga-
tion, safety services, computers, and communications equipment.
Have only qualified persons familiar with electronic
equipment perform this installation.
The user is responsible for having a qualified electrician
promptly correct any interference problem resulting from the installation.
If notified by the FCC about interference, stop using the equipment at
once.
Have the installation regularly checked and maintained.
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.
1-6.California Proposition 65 Warnings
Welding or cutting equipment 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.)
Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. Wash hands after handling.
Electromagnetic energy can interfere with sensitive
electronic equipment such as microprocessors,
computers, and computer-driven equipment such as
robots.
Be sure all equipment in the welding area is electro-
magnetically compatible.
To reduce possible interference, keep weld cables as short as possible,
close together, and down low, such as on the floor.
Locate welding operation 100 meters from any sensitive electronic
equipment.
Be sure this welding machine is installed and grounded according to this
manual.
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.
For Gasoline Engines:
Engine exhaust contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive
harm.
For Diesel Engines:
Diesel engine exhaust and some of its constituents are known
to the State of California to cause cancer, birth defects, and
other reproductive harm.
1-7.Principal Safety Standards
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
from Global Engineering Documents (phone: 1-877-413-5184, website:
www.global.ihs.com).
Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping, American Welding Society Standard
AWS F4.1, from Global Engineering Documents (phone:
1-877-413-5184, website: www.global.ihs.com).
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, P.O. Box 9101, 1 Battery March Park, Quincy, MA
02269-9101 (phone: 617-770-3000, website: www.nfpa.org and www.
sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 1735 Jefferson Davis Highway,
Suite 1004, Arlington, VA 22202-4102 (phone: 703-412-0900, website:
www.cganet.com).
Code for Safety in Welding and Cutting, CSA Standard W117.2, from
Canadian Standards Association, Standards Sales, 178 Rexdale Bou-
1-8.EMF Information
Considerations About Welding And The Effects Of Low Frequency
Electric And Magnetic 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 powerfrequency 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.
OM-494 Page 4
levard, Rexdale, Ontario, Canada M9W 1R3 (phone: 800-463-6727 or
in Toronto 416-747-4044, website: www.csa-international.org).
Practice For Occupational And Educational Eye And Face Protection,
ANSI Standard Z87.1, from American National Standards Institute, 11
West 42nd Street, New York, NY 10036–8002 (phone: 212-642-4900,
website: www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, from National Fire Protection Association,
P.O. Box 9101, 1 Battery March Park, Quincy, MA 02269-9101 (phone:
617-770-3000, website: www.nfpa.org.
OSHA, Occupational Safety and Health Standards for General Industry, Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q,
and Part 1926, Subpart J, from U.S. Government Printing Office, Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250 (there
are 10 Regional Offices—phone for Region 5, Chicago, is
312-353-2220, website: www.osha.gov).
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 before welding or going near
welding operations. If cleared by your doctor, then following the above
procedures is recommended.
Page 9
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT
UTILISATION
Avertissement: Protégez vous et les autres des blessures − lisez et suivez ces précautions.
2-1.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.
Identifie un message de sécurité particulier.
Signifie NOTA ; n’est pas relatif à la sécurité.
2-2.Dangers relatifs au soudage à l’arc
TRIQUES, 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.
Ce groupe de symboles signifie Mise en garde ! Soyez vigilant ! Il y a des risques de danger reliés aux CHOCS ÉLEC-
rom_fre 3/05
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 2-7 . Veuillez lire et respecter
toutes ces normes de sécurité.
L’installation, l’utilisation, l’entretien et les réparations ne doivent être
confiés qu’à des personnes qualifiées.
Au cours de l’utilisation, tenir toute personne à l’écart et plus particu-
lièrement 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 circuits internes de
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.
Ne jamais toucher les pièces électriques sous tension.
Porter des gants et des vêtements de protection secs ne comportant pas de
trous.
S’isoler de la pièce et de la terre au moyen de tapis ou d’autres moyens iso-
lants suffisamment grands pour empêcher le contact physique éventuel avec
la pièce ou la terre.
Ne pas se servir de source électrique à courant électrique dans les zones hu-
mides, dans les endroits confinés ou là où on risque de tomber.
Se servir d’une source électrique à courant électrique UNIQUEMENT si le
procédé de soudage le demande.
Si l’utilisation d’une source électrique à courant électrique s’avère nécessaire,
se servir de la fonction de télécommande si l’appareil en est équipé.
Des précautions de sécurité supplémentaires sont requises dans des envi-
ronnements à risque comme: les endroits humides ou lorsque l’on porte des
vêtements mouillés; sur des structures métalliques au sol, grillages et échafaudages; dans des positions assises, à genoux et allongées; ou quand il y a
un risque important de contact accidentel avec la pièce ou le sol. Dans ces cas
utiliser les appareils suivants dans l’ordre de préférence: 1) un poste à souder
DC semi−automatique de type CV (MIG/MAG), 2) un poste à souder manuel
(électrode enrobée) DC, 3) un poste à souder manuel AC avec tension à vide
réduite. Dans la plupart des cas, un poste courant continu de type CV est recommandé. Et, ne pas travailler seul!
Couper l’alimentation ou arrêter le moteur avant de procéder à l’installation, 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).
Installer et mettre à la terre correctement cet appareil conformément à son
manuel d’utilisation et aux codes nationaux, provinciaux et municipaux.
Toujours vérifier la terre du cordon d’alimentation − Vérifier et s’assurer 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.
En effectuant les raccordements d’entrée fixer d’abord le conducteur de mise
à la terre approprié et contre-vérifier les connexions.
Vérifier fréquemment le cordon d’alimentation pour voir s’il n’est pas endom-
magé ou dénudé − remplacer le cordon immédiatement s’il est endommagé −
un câble dénudé peut provoquer une électrocution.
Mettre l’appareil hors tension quand on ne l’utilise pas.
Ne pas utiliser des câbles usés, endommagés, de grosseur insuffisante ou
mal épissés.
Ne pas enrouler les câbles autour du corps.
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.
Ne pas toucher l’électrode quand on est en contact avec la pièce, la terre ou
une électrode provenant d’une autre machine.
Ne pas toucher des porte électrodes connectés à deux machines en même
temps à cause de la présence d’une tension à vide doublée.
N’utiliser qu’un matériel en bon état. Réparer ou remplacer sur-le-champ les
pièces endommagées. Entretenir l’appareil conformément à ce manuel.
l’appareil sont également sous tension à ce moment-là. En
Porter un harnais de sécurité quand on travaille en hauteur.
Maintenir solidement en place tous les panneaux et capots.
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 la soudure.
Isoler la pince de masse quand pas mis à la pièce pour éviter le contact avec
tout objet métallique.
Une tension DC importante subsiste à l’intérieur des
onduleurs après avoir coupé l’alimentation.
Couper l’alimentation du poste et décharger les condensateurs d’entrée com-
me indiqué dans la Section Maintenance avant de toucher des composants.
LES FUMÉES ET LES GAZ peuvent être
dangereux.
Le soudage génère des fumées et des gaz. Leur inhalation
peut être dangereux pour votre santé.
Eloigner votre tête des fumées. Ne pas respirer les fumées.
À l’intérieur, ventiler la zone et/ou utiliser une ventilation forcée au niveau de
l’arc pour l’évacuation des fumées et des gaz de soudage.
Si la ventilation est médiocre, porter un respirateur anti-vapeurs approuvé.
Lire et comprendre les spécifications de sécurité des matériaux (MSDS) et les
instructions du fabricant concernant les métaux, les consommables, les revêtements, les nettoyants et les dégraisseurs.
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.
Ne pas souder dans des endroits situés à proximité d’opérations de dégrais-
sage, 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.
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 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 ACCUMULATIONS DE GAZ risquent de provoquer des blessures ou
même la mort.
Fermer l’alimentation du gaz protecteur en cas de non utili-
Veiller toujours à bien aérer les espaces confinés ou se servir d’un respira-
teur d’adduction d’air homologué.
sation.
LES RAYONS DE L’ARC peuvent provoquer des brûlures dans les yeux et
sur la peau.
Le rayonnement de l’arc du procédé de soudage génère des
ges) susceptibles de provoquer des brûlures dans les yeux et sur la peau. Des
étincelles sont projetées pendant le soudage.
Porter un casque de soudage approuvé muni de verres filtrants approprié
pour protéger visage et yeux pendant le soudage (voir ANSI Z49.1 et Z87.1
énuméré dans les normes de sécurité).
Porter des lunettes de sécurité avec écrans latéraux même sous votre cas-
que.
Avoir recours à des écrans protecteurs ou à des rideaux pour protéger les au-
tres contre les rayonnements les éblouissements et les étincelles ; prévenir
toute personne sur les lieux de ne pas regarder l’arc.
Porter des vêtements confectionnés avec des matières résistantes et ignifu-
ges (cuir, coton lourd ou laine) et des bottes de protection.
rayons visibles et invisibles intenses (ultraviolets et infrarou-
OM-494 Page 5
Page 10
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
soudure. La projection d’étincelles, 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 ou un incendie. Avant de commencer le soudage,
vérifier et s’assurer que l’endroit ne présente pas de danger.
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.
Ne pas souder dans un endroit là où des étincelles peuvent tomber sur des
substances inflammables.
Se protéger et d’autres personnes de la projection d’étincelles et de métal
chaud.
Des étincelles et des matériaux chauds du soudage peuvent facilement
passer dans d’autres zones en traversant de petites fissures et des
ouvertures.
Surveiller tout déclenchement d’incendie et tenir un extincteur à proximité.
Le soudage effectué sur un plafond, plancher, paroi ou séparation peut dé-
clencher un incendie de l’autre côté.
Ne pas effectuer le soudage sur des conteneurs fermés tels que des réser-
voirs, tambours, ou conduites, à moins qu’ils n’aient été préparés
correctement conformément à AWS F4.1 (voir les normes de sécurité).
Brancher le câble sur la pièce le plus près possible de la zone de soudage pour
éviter le transport du courant sur une longue distance par des chemins inconnus éventuels en provoquant des risques d’électrocution et d’incendie.
Brancher le câble de masse sur la pièce le plus près possible de la zone de
soudage pour éviter le transport du courant sur une longue distance par des
chemins inconnus éventuels en provoquant des risques d’électrocution,
d’étincelles et d’incendie.
Ne pas utiliser le poste de soudage pour dégeler des conduites gelées.
En cas de non utilisation, enlever la baguette d’électrode du porte-électrode
ou couper le fil à la pointe de contact.
Porter des vêtements de protection dépourvus d’huile tels que des gants en
cuir, une chemise en matériau lourd, des pantalons sans revers, des chaussures hautes et un couvre chef.
Avant de souder, retirer toute substance combustible de vos poches telles
qu’un allumeur au butane ou des allumettes.
Suivre les recommandations dans OSHA 1910.252(a)(2)(iv) et NFPA 51B
pour les travaux à chaud et avoir de la surveillance et un extincteur à proximité.
éclatement. Des étincelles peuvent être projetées de l’arc de
DES PARTICULES VOLANTES
peuvent blesser les yeux.
Le soudage, l’écaillement, le passage de la pièce à la bros-
se en fil de fer, et le meulage génèrent des étincelles et des
froidissement des soudures, elles risquent de projeter du laitier.
Porter des lunettes de sécurité avec écrans latéraux ou un écran facial.
particules métalliques volantes. Pendant la période de re-
Ne pas toucher aux pièces chaudes, utiliser les outils recommandés et por-
exploser. Du fait que les bouteilles de gaz font normalement partie du procédé de
soudage, les manipuler avec précaution.
Protéger les bouteilles de gaz comprimé d’une chaleur excessive, des chocs
mécaniques, des dommages physiques, du laitier, des flammes ouvertes, des
étincelles et des arcs.
Placer les bouteilles debout en les fixant dans un support stationnaire ou dans
un porte-bouteilles pour les empêcher de tomber ou de se renverser.
Tenir les bouteilles éloignées des circuits de soudage ou autres circuits électri-
ques.
Ne jamais placer une torche de soudage sur une bouteille à gaz.
Une électrode de soudage ne doit jamais entrer en contact avec une bouteille.
Ne jamais souder une bouteille pressurisée − risque d’explosion.
Utiliser seulement des bouteilles de gaz protecteur, régulateurs, tuyaux et rac-
cords convenables pour cette application spécifique; les maintenir ainsi que
les éléments associés en bon état.
Ne pas tenir la tête en face de la sortie en ouvrant la soupape de la bouteille.
Maintenir le chapeau de protection sur la soupape, sauf en cas d’utilisation ou
de branchement de la bouteille.
Utiliser les équipements corrects, les bonnes procédures et suffisamment de
personnes pour soulever et déplacer les bouteilles.
Lire et suivre les instructions sur les bouteilles de gaz comprimé, l’équipement
connexe et le dépliant P-1 de la CGA (Compressed Gas Association) mentionné dans les principales normes de sécurité.
2-3.Dangers existant en relation avec le moteur
L’EXPLOSION DE LA BATTERIE peut
RENDRE AVEUGLE.
Toujours porter une protection faciale, des gants en caout-
chouc et vêtements de protection lors d’une intervention
sur la batterie.
Arrêter le moteur avant de débrancher ou de brancher les câbles de batterie.
Eviter de provoquer des étincelles avec les outils en travaillant sur la batterie.
Ne pas utiliser le poste de soudage pour charger les batteries ou des véhicu-
les de démarrage rapide.
Observer la polarité correcte (+ et −) sur les batteries.
Débrancher le câble négatif (–) en premier lieu. Le rebrancher en dernier lieu.
LE CARBURANT MOTEUR peut provoquer un incendie ou une explosion.
Arrêter le moteur avant de vérifier le niveau de carburant
Ne pas faire le plein en fumant ou proche d’une source d’étincelles ou d’une
flamme nue.
Ne pas faire le plein de carburant à ras bord; prévoir de l’espace pour son
expansion.
Faire attention de ne pas renverser de carburant. Nettoyer tout carburant
renversé avant de faire démarrer le moteur.
Jeter les chiffons dans un récipient ignifuge.
ou de faire le plein.
DES ORGANES MOBILES peuvent provoquer des blessures.
Ne pas approcher les mains des ventilateurs, courroies et
Maintenir fermés et fixement en place les portes, panneaux, recouvre-
ments et dispositifs de protection.
OM-494 Page 6
autres pièces en mouvement.
Arrêter le moteur avant d’installer ou brancher l’appareil.
Seules des personnes qualifiées sont autorisées à enlever les portes, pan-
neaux, recouvrements ou dispositifs de protection pour effectuer, s’il y a lieu,
des travaux d’entretien et de dépannage.
Pour empêcher tout démarrage accidentel pendant les travaux d’entretien,
débrancher le câble négatif (−) de batterie de la borne.
Ne pas approcher les mains, cheveux, vêtements lâches et outils des organes
mobiles.
Remettre en place les panneaux ou les dispositifs de protection et fermer les
portes à la fin des travaux d’entretien et avant de faire démarrer le moteur.
Avant d’intervenir, déposer les bougies ou injecteurs pour éviter la mise en
route accidentelle du moteur.
Bloquer le volant moteur pour éviter sa rotation lors d’une intervention sur le
générateur.
Porter des gants et des vêtements de protection pour travailler sur un
moteur chaud.
Toujours vérifier le niveau de liquide de refroidissement dans le vase d’expan-
sion (si présent), et non dans le radiateur (sauf si précisé autrement dans la
section maintenance du manuel du moteur).
DES PIÈCES CHAUDES peuvent
provoquer des brûlures graves.
Ne pas toucher à mains nues les parties chaudes.
Prévoir une période de refroidissement avant de travailler à
l’équipement.
ter des gants de soudage et des vêtements épais pour éviter les brûlures.
LE BRUIT peut affecter l’ouïe.
Le bruit des processus et des équipements peut affecter
l’ouïe.
Porter des protections approuvés pour les oreilles si le ni-
veau sonore est trop élevé.
LES CHAMPS MAGNÉTIQUES peuvent
affecter les stimulateurs cardiaques.
Porteurs de stimulateur cardiaque, restez à distance.
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.
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
DES PIECES CHAUDES peuvent provoquer des brûlures et blessures.
Ne pas toucher les parties chaudes du moteur.
Laisser l’ensemble se refroidir avant d’effectuer la
maintenance.
LA VAPEUR ET LE LIQUIDE DE
REFROIDISSEMENT CHAUD peuvent
provoquer des brûlures.
Il est préférable de vérifier le liquide de refroidissement
une fois le moteur refroidi pour éviter de se brûler.
Page 11
Si le moteur est chaud et que le liquide doit être vérifié, opérer comme suivant.
Mettre des lunettes de sécurité et des gants, placer un torchon sur le bouchon
du radiateur.
Dévisser le bouchon légèrement et laisser la vapeur s’échapper avant d’enle-
ver le bouchon.
LES ACCUMULATIONS DE GAZ risquent de provoquer des blessures ou
même la mort.
Fermer l’alimentation du gaz protecteur en cas de non
Veiller toujours à bien aérer les espaces confinés ou se servir d’un respi-
rateur d’adduction d’air homologué.
utilisation.
L’ACIDE DE LA BATTERIE peut provoquer des brûlures dans les YEUX et
sur la PEAU.
Ne pas renverser la batterie.
Remplacer une batterie endommagée.
Rincer immédiatement les yeux et la peau à l’eau.
2-4.Dangers liés à l’air comprimé
LA CHALEUR DU MOTEUR peut pro-voquer un incendie.
Ne pas placer l’appareil sur, au-dessus ou à proximité de
Tenir à distance les produits inflammables de l’échappement.
surfaces inflammables.
LES ÉTINCELLES À L’ÉCHAPPEMENT
peuvent provoquer un incendie.
Empêcher les étincelles d’échappement du moteur de
provoquer un incendie.
Utiliser uniquement un pare-étincelles approuvé − voir
codes en vigueur.
RESPIRER L’AIR COMPRIMÉ peut provoquer des blessures graves ou causer
la mort.
Ne pas utiliser l’air comprimé pour respirer.
Utiliser l’air comprimé seulement pour le coupage, gou-
geage et les outils pneumatiques.
L’AIR COMPRIMÉ peut provoquer
des blessures.
Porter des lunettes de sécurité approuvées.
Ne pas diriger le jet d’air vers d’autres ou soi-même.
Laisser l’ensemble se refroidir avant de toucher ou d’effectuer la mainte-
nance.
Le METAL CHAUD lors du coupage et
gougeage plasma peut provoquer un incendie ou une explosion.
Ne pas couper ou gouger à proximité de produits in-
flammables.
Surveillez et garder un extincteur à proximité.
DES PIECES CHAUDES peuvent provoquer des brûlures et blessures.
Ne pas toucher le compresseur ou d’autres éléments
du circuit air comprimé chauds.
L’AIR COMPRIME EMMAGASINE ET DES
TUYAUX SOUS PRESSION peuvent provoquer des blessures.
Relâcher la pression d’air de l’outillage ou du systè-
me avant d’effectuer la maintenance, avant de changer ou de rajouter des éléments ou avant d’ouvrir la
purge ou le bouchon de remplissage d’huile.
Utiliser uniquement des pièces de rechange Miller/Hobart.
LIRE LES INSTRUCTIONS.
Lisez le manuel d’instructions avant l’utilisation ou la
maintenance de l’appareil.
Arrêter le moteur et relâcher la pression avant d’ef-
fectuer la maintenance.
2-5.Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance
LA CHUTE DE L’APPAREIL peut blesser.
Utiliser un œilleton de levage pour lever l’appareil et les
accessoires correctement installés. Ne pas dépasser
le poids nominal maximal de l’œilleton (voir les
spécifications).
Ne lever et ne soutenir l’appareil qu’avec de l’équipement
approprié et en suivant les procédures adéquates.
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.
LE SURCHAUFFEMENT peut endommager le moteur électrique.
Arrêter ou déconnecter l’équipement avant de démarrer ou
Ne pas laisser tourner le moteur trop lentement sous risque d’endommager
le moteur électrique à cause d’une tension et d’une fréquence trop faibles.
Ne pas brancher de moteur de 50 ou de 60 Hz à la prise de 100 Hz, s’il y a
lieu.
d’arrêter le moteur.
Utiliser des pochettes et des boîtes antistatiques pour stocker, déplacer
ou expédier des cartes de circuits imprimes.
L’EMPLOI EXCESSIF peut
SURCHAUFFER L’ÉQUIPEMENT.
Laisser l’équipement refroidir ; respecter le facteur de
marche nominal.
Réduire le courant ou le facteur de marche avant de
poursuivre le soudage.
Ne pas obstruer les passages d’air du poste.
LES CHARGES ÉLECTROSTATIQUES peuvent endommager les
circuits imprimés.
Établir la connexion avec la barrette de terre avant de
manipuler des cartes ou des pièces.
LES ÉTINCELLES VOLANTES risquent
de provoquer des blessures.
Porter un écran facial pour protéger le visage et les yeux.
Affûter l’électrode au tungstène uniquement à la meuleuse dotée de protec-
teurs. Cette manœuvre est à exécuter dans un endroit sûr lorsque l’on porte
l’équipement homologué de protection du visage, des mains et du corps.
Les étincelles risquent de causer un incendie − éloigner toute substance in-
flammable.
UNE REMORQUE QUI BASCULE peut
entraîner des blessures.
Utiliser les supports de la remorque ou des blocs pour
soutenir le poids.
Installer convenablement le poste sur la remorque com-
me indiqué dans le manuel s’y rapportant.
OM-494 Page 7
Page 12
LIRE LES INSTRUCTIONS.
Utiliser seulement les pièces de rechange d’origine.
Effectuer la maintenance du moteur et du compresseur
(si applicable) suivant ce manuel et le manuel du moteur/
compresseur (si applicable).
LE RAYONNEMENT HAUTE FRÉQUENCE (H.F.) risque de provoquer
des interférences.
Le rayonnement haute fréquence (H.F.) peut provoquer
des interférences avec les équipements de
radio−navigation et de communication, les services de
Demander seulement à des personnes qualifiées familiarisées avec des
équipements électroniques de faire fonctionner l’installation.
L’utilisateur est tenu de faire corriger rapidement par un électricien quali-
fié les interférences résultant de l’installation.
Si le FCC signale des interférences, arrêter immédiatement l’appareil.
Effectuer régulièrement le contrôle et l’entretien de l’installation.
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 un blindage pour réduire les interférences
éventuelles.
sécurité et les ordinateurs.
2-6.Proposition californienne 65 Avertissements
LE SOUDAGE À L’ARC risque de
provoquer des interférences.
L’énergie électromagnétique risque de provoquer des in-
terférences pour l’équipement électronique sensible tel
que les ordinateurs et l’équipement commandé par ordi-
Veiller à ce que tout l’équipement de la zone de soudage soit compatible
électromagnétiquement.
Pour réduire la possibilité d’interférence, maintenir les câbles de souda-
ge aussi courts que possible, les grouper, et les poser aussi bas que possible (ex. par terre).
Veiller à souder à une distance de 100 mètres de tout équipement élec-
tronique sensible.
Veiller à ce que ce poste de soudage soit posé et mis à la terre conformé-
ment à ce mode d’emploi.
En cas d’interférences après avoir pris les mesures précédentes, il in-
combe à l’utilisateur de prendre des mesures supplémentaires telles 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.
nateur tel que les robots.
Les équipements de soudage et de coupage produisent des fumées et
des gaz qui contiennent des produits chimiques dont l’État de Californie
reconnaît qu’ils provoquent des malformations congénitales et, dans
certains cas, des cancers. (Code de santé et de sécurité de Californie,
chapitre 25249.5 et suivants)
Les batteries, les bornes et autres accessoires contiennent du plomb et
des composés à base de plomb, produits chimiques dont l’État de Californie reconnaît qu’ils provoquent des cancers et des malformations
congénitales ou autres problèmes de procréation. Se laver les mains
après manipulation.
2-7.Principales normes de sécurité
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,
de Global Engineering Documents (téléphone : 1-877-413-5184, site Internet : www.global.ihs.com).
Recommended Safe Practices for the Preparation for Welding and Cutting
of Containers and Piping, American Welding Society Standard AWS F4.1
de Global Engineering Documents (téléphone : 1-877-413-5184, site Internet : www.global.ihs.com).
National Electrical Code, NFPA Standard 70, de National Fire Protection
Association, P.O. Box 9101, 1 Battery March Park, Quincy, MA
02269-9101 (téléphone : 617-770-3000, site Internet : www.nfpa.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, de
Compressed Gas Association, 1735 Jefferson Davis Highway, Suite
1004, Arlington, VA 22202-4102 (téléphone : 703-412-0900, site Internet
: www.cganet.com).
Code for Safety in Welding and Cutting, CSA Standard W117.2, de
Canadian Standards Association, Standards Sales, 178 Rexdale
2-8.Information EMF
Pour les moteurs à essence :
Les gaz d’échappement des moteurs contiennent des produits chimi-
ques dont l’État de Californie reconnaît qu’ils provoquent des cancers
et des malformations congénitales ou autres problèmes de procréation.
Pour les moteurs diesel :
Les gaz d’échappement des moteurs diesel et certains de leurs compo-
sants sont reconnus par l’État de Californie comme provoquant des
cancers et des malformations congénitales ou autres problèmes de procréation.
Boulevard, Rexdale, Ontario, Canada M9W 1R3 (téléphone :
800-463-6727 ou à Toronto 416-747-4044, site Internet :
www.csa-international.org).
Practice For Occupational And Educational Eye And Face Protection,
ANSI Standard Z87.1, de American National Standards Institute, 11 West
42nd Street, New York, NY 10036-8002 (téléphone : 212-642-4900, site
Internet : www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, de National Fire Protection Association, P.O.
Box 9101, 1 Battery March Park, Quincy, MA 02269-9101 (téléphone :
617-770-3000, site Internet : www.nfpa.org).
OSHA, Occupational Safety and Health Standards for General Industry,
Title 29, Code of Federal Regulations (CFR), Part 1910, Subpart Q, and
Part 1926, Subpart J, de U.S. Government Printing Office, Superintendent
of Documents, P.O. Box 371954, Pittsburgh, PA 15250 (il y a 10 bureaux
régionaux−−le téléphone de la région 5, Chicago, est 312-353-2220, site
Internet : www.osha.gov).
Considérations sur le soudage et les effets de basse fréquence et des
champs magnétiques et électriques.
Le courant de soudage, pendant son passage dans les câbles de soudage, causera des champs électromagnétiques. Il y a eu et il y a encore un
certain souci à propos de tels champs. Cependant, après avoir examiné
plus de 500 études qui ont été faites pendant une période de recherche
de 17 ans, un comité spécial ruban bleu du National Research Council a
conclu : « L’accumulation de preuves, suivant le jugement du comité, n’a
pas démontré que l’exposition aux champs magnétiques et champs électriques à haute fréquence représente un risque à la santé humaine ».
Toutefois, des études sont toujours en cours et les preuves continuent à
être examinées. En attendant que les conclusions finales de la recherche
soient établies, il vous serait souhaitable de réduire votre exposition aux
champs électromagnétiques pendant le soudage ou le coupage.
Pour réduire les champs magnétiques sur le poste de travail, appliquer les
OM-494 Page 8
procédures suivantes :
1. Maintenir les câbles ensemble en les tordant ou en les enveloppant.
2. Disposer les câbles d’un côté et à distance de l’opérateur.
3. Ne pas courber pas et ne pas entourer pas les câbles autour de
votre corps.
4. Garder le poste de soudage et les câbles le plus loin possible de
vous.
5. Connecter la pince sur la pièce aussi près que possible de la soudure.
En ce qui concerne les stimulateurs cardiaques
Les porteurs de stimulateur cardiaque doivent consulter leur médecin
avant de souder ou d’approcher des opérations de soudage. Si le médecin
approuve, il est recommandé de suivre les procédures précédentes.
Page 13
SECTION 3 − DEFINITIONS
3-1.Symbols And Definitions
Stop EngineStart EngineEther Starting AidEngine
Do Not Switch
While Welding
Or Under Load
Battery (Engine)Circuit BreakerEngine Oil
A
Check Injectors/
Pump
PositiveNegative
Amperes
Check Valve
Clearance
Certified/Trained
VoltsPanel/LocalRemote
V
OnTemperatureOutput (Contactor)
Stick (SMAW)
Welding
Time
h
TIG (GTAW)
Welding
Hours
Read Operator’s
Manual
MIG (GMAW)
s
Fuel
Mechanic
Welding
Seconds
3
1
Protective Earth
(Ground)
Welding Arc
Alternating
Current
Three Phase
Single Phase
OM-494 Page 9
Page 14
SECTION 4 − SPECIFICATIONS
120/240 V AC
AirCooled,
22.3 gal
Dual
Volts DC, 40%
(/y
Engine
L
Engine End
Do not exceed tilt angles or engine could
tip.
C
D
E
F
20
J
angles_1 8/99
158 699
4-1.Description
This unit has two CC/CV modules with separate weld controls for applications where two welding arcs are needed. A
Welder Selector switch controls whether one or both sets of weld output terminals are active (see Section 6-2). When
the unit is operated in the dual operator mode, each welder has CC and CV weld output available for Stick, TIG, and
MIG welding. When in the single operator mode, CC weld output is available to the welder on the Welder B (right) side
only (CV not active in single operator mode).
4-2.Weld, Power, And Engine Specifications
Max.
Open-
Circuit
Voltage
Rated
Welding
Output
550 A at 30
Volts DC, 40%
Duty Cycle
275 A at 31
Volts DC, 40%
Duty Cycle
Weld
Mode
Single
Dual
Weld
Stations
Available
1
(Right Side)
2
(Both Sides)
Weld
Output
CC/DC30 − 600 A85
CC/DC15 − 300 A85
CV/DC10 − 32 V49
Weld
Output
Range
4-3.Dimensions, Weights, And Operating Angles
Dimensions
Height 47-5/8 in (1210 mm)
Width 31-1/4 in (794 mm)
Depth60-1/2 in (1537 mm)
A59-1/8 in (1502 mm)
B47-1/4 in (1200 mm)
C43-1/4 in (1099 mm)
D32-3/4 in (832 mm)
E24-15/16 in (633 mm)
F10-1/2 in (267 mm)
G6-1/2 in (165 mm)
H2-7/8 in (73 mm)
J29-7/8 in (759 mm)
K11/16 in (24 mm)
L
21/32 in (17 mm) Dia.
16 Holes
Weight
2005 lb (909 kg)
Lifting Eye Weight Rating:
2161 lb (980 kg) Maximum
L
G
K
J
H
158 699
Generator Power
Single-Phase,
4 kVA/kW, 34/17 A,
120/240 V AC,
(4 kVA/kW Shared By
All Receptacles)
Do not exceed tilt angles or engine could
Do not move or operate unit where it could
A
C
B
Rating
,
50/60 Hz
be damaged or unit could tip.
tip.
20°
20°
Engine
Deutz F3L-912
Air-Cooled,
Three-Cylinder,
41.5 HP Diesel
Engine
Fuel
Capacity
(84.4 L)
°
17.5°
17.5°
angles_1 8/99
OM-494 Page 10
Page 15
4-4.Fuel Consumption
The curve shows typical fuel use under the combined weld loads of both
sides (Welder A and Welder B).
7.57
6.62
5.67
4.73
3.78
2.84
1.98
0.95
LITERS/HR.
1.70
1.46
1.25
1.04
0.83
0.62
0.40
0.21
IMP. GAL./HR.
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0
050100 150 200 250 300 350 400 450 500 550 600
U.S. GAL./HR.
CC
CV
DC WELD AMPERES AT 40% DUTY CYCLE
4-5.AC Generator Power
300
150
250
125
200
100
150
75
AC VOLTS
100
50
50
25
0
0
051015202530
AC AMPERES IN 240V MODE
195 711
The ac power curve shows the generator power in amperes available
at the 120 and 240 volt receptacles.
0102030405060
AC AMPERES IN 120V MODE
193 018
OM-494 Page 11
Page 16
4-6.Duty Cycle And Overheating
Dual Operator Mode − 40% Duty Cycle At 275 Amperes From Each Side
Single Operator Mode − 40% Duty Cycle At 550 Amperes From Welder Bside (Right)
4 Minutes Welding6 Minutes Resting
Duty Cycle is percentage of 10 minutes that unit can weld at rated load
without overheating.
Exceeding duty cycle can
damage unit and void
warranty.
If a weld module overheats, the
High Temperature light goes on and
the thermostat opens to stop weld
output to that module. Wait fifteen
minutes for module to cool. Reduce
amperage, voltage, or duty cycle
before welding.
This unit has separate duty cycle
ratings for each operating mode. If
the unit is operated in the dual operator mode, the unit is rated at 40%
duty cycle. This means each side of
the unit can be operated at 275 amperes at 40% duty cycle.
When the unit is operated in the
single operator mode, theWelder B
side (right) is rated at 40% duty
cycle (550 A at 40% duty cycle).
Overheating
0
Minutes
15
A or V
OR
Reduce Duty Cycle
Ref. rduty1 5/95 − 194 313-A
OM-494 Page 12
Page 17
4-7.Volt-Ampere Curves
A. CC/DC − Single Mode
100
80
DC VOLTS
60
40
MIN MEDMAX
20
0
0100 200 300 400 500 600 700 800 900 1000
B. CC/DC − Dual Mode
100
80
The volt-ampere curve shows the
minimum, medium, and maximum
voltage and amperage output capabilities of the welding generator.
Curves of all other settings fall between the curves shown.
DC AMPERES
60
40
DC VOLTS
20
0
050100 150 200 250 300 350 400 450 500
C. CV/DC Mode
100
80
60
DC VOLTS
40
20
MAX
MED
MIN
MAXMEDMIN
DC AMPERES
0
0100 200 300 400 500 600 700 800 900 1000
DC AMPERES
194 397 / 194 398 / 194 399
OM-494 Page 13
Page 18
SECTION 5 − INSTALLATION
NOTE
When facing the front panel, the Welder B controls and weld terminals are on the
right and the Welder A controls and weld terminals are on the left.
generator onto transport vehicle
or trailer and comply with all DOT
and other applicable codes.
Always ground generator frame
to vehicle frame to prevent electric shock and static electricity
hazards.
If unit does not have GFCI recep-
tacles, use GFCI-protected extension cord.
1Equipment Grounding Terminal
(On Front Panel)
2Grounding Cable (Not Supplied)
3Metal Vehicle Frame
Connect cable from equipment ground
terminal to metal vehicle frame. Use #10
AWG or larger insulated copper wire.
Be sure equipment connected to
the 240 V receptacles is GFCI-
protected.
Do Not Lift Unit From End
18 in
(460 mm)
OR
18 in
(460 mm)
Grounding
1
GND/PE
Electrically bond generator frame to
vehicle frame by metal-to-metal
contact.
Bed liners, shipping skids, and some running
gears insulate the welding generator from the
vehicle frame. Always connect a ground wire
from the generator equipment grounding terminal to bare metal on the vehicle frame as shown.
OR
Notes
OM-494 Page 14
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.
Page 19
5-2.Activating The Dry Charge Battery (If Applicable)
3
2
1
4
Always wear a face shield,
rubber gloves and protective
clothing when working on a
battery.
Remove battery from unit.
4Vent Caps
5Sulfuric Acid Electrolyte
(1.265 Specific Gravity)
6Well
Fill each cell with electrolyte to
bottom of well (maximum).
Do not overfill battery cells.
Wait ten minutes and check electrolyte level. If necessary, add electrolyte to raise to proper level. Reinstall vent caps.
7Battery Charger
Read and follow all instruc-
tions supplied with battery
charger.
Charge battery for 12 minutes at 30
amperes or 30 minutes at 5 amperes. Disconnect charging cables
and install battery.
When electrolyte is low, add
only distilled water to cells to
maintain proper level.
5 A For 30 Minutes
Tools Needed:
30 A For 12 Minutes
5-3.Connecting The Battery
OR
Connect (−) Cable Last.
+
+
−
drybatt1 6/05 − S-0886
−
190 377
OM-494 Page 15
Page 20
5-4.Installing Exhaust Pipe
Tools Needed:
1/2 in
5-5.Engine Prestart Checks
1/2 in
(13 mm)
Diesel
Valve Open
Full
I
Stop engine and let cool.
Do not blow exhaust toward
air cleaner or air intake.
Top View
exh_pipe2 4/96 − 154 089-A / 154 611 / 190 377
Check all fluids daily. Engine must
be cold and on a level surface.
Follow run-in procedure in engine
manual. If unburned fuel and oil collect in exhaust pipe during run-in,
see Section 10.
Fuel
Do not use gasoline. Gaso-
line will damage engine.
Add diesel fuel before starting
engine the first time (see maintenance label for specifications). Fill
fuel tank up to 1/2 in. (13 mm) from
top to allow room for expansion.
Open fuel shut-off valve.
Do not run out of fuel or air enters
fuel system and causes starting
problems. See engine manual to
bleed air from fuel system.
Oil
After fueling, check oil with unit on
level surface. If oil is not up to full
mark on dipstick, add oil (see maintenance label).
Engine stops if oil pressure is
too low.
To improve cold weather
starting:
Keep battery in good condition.
Store battery in warm area.
OM-494 Page 16
O
Full
Use fuel formulated for cold
weather (diesel fuel can gel in
cold weather). Contact local
fuel supplier for fuel information.
Use correct grade oil for cold
weather.
Ref. 158 633-C / S-176 697
Page 21
5-6.Safety Information For Connecting To Weld Output Terminals
UNEXPECTED WELD OUTPUT can cause injury or fire.
Both weld outputs can be live (ON) when Welder Selector switch is in Welder A/Welder B position and engine is running.
Disconnect or insulate any unused cables.
Know where cables are located BEFORE starting engine.
ELECTRIC SHOCK can kill; ARCING can burn skin or damage electrical connections.
Stop engine before making any weld output connections.
Do not connect welding output of different polarities to the same structure.
See ANSI Z49.1 and OSHA Title 29, Chapter XVII, Part 1910, Subpart Q (addresses at beginning of manual).
When welding on the same workpiece, all connections to the workpiece must be of the same polarity.
Do not handle or come in contact with two live electrodes at the same time.
ELECTRIC SHOCK can kill; TWO TIMES NORMAL OPEN-CIRCUIT VOLTS can exist between electrode holders of opposite polarity.
Do not touch electrode holders of opposite polarity at the same time.
Separate electrode holders of opposite polarity to prevent contact.
Consult ANSI Z49.1 for common grounding safe practices.
5-7.Weld Output Terminals
Welder A (Left) Side
Dinse receptacles only on units
with Polarity switch option.
Welder B (Right) Side
123
123
Stop engine.
1Negative (−) Weld Output Terminal
2CV Weld Output Terminal
3CC Weld Output Terminal
4
4Dinse Weld Receptacles (Only On
Units With Polarity Switch Option)
See Sections 5-8 thru 5-13 for dual operator
output connections for CC and CV welding.
See Section 5-14 for single operator output
Tools Needed:
3/4 in
Ref. 190 377 / 802 292-A / 802 554
connections (CC only).
If unit has the Polarity switch option, the
Negative (−) weld output terminals are labeled Work receptacles and the CC weld
output terminals are labeled Electrode receptacles.
OM-494 Page 17
Page 22
5-8.Making Dual Operator CC Weld Connections w/ Separate Work Cables
Tools Needed:
Direct Current Electrode Positive
(DCEP) connections are shown.
3/4 in
Welder A (Left) Side
2
Note position
of Process
Selector
switches.
1
Welder B (Right) Side
2
Stop engine.
Do not exceed machine duty cycle.
Use Dual Operator mode for CC and
CV welding (see Section 6-1).
See Section 5-15 for proper cable size.
1Strain Reliefs
Route cables through strain reliefs.
OM-494 Page 18
3
2Electrode Holder Cables
3Work Cables
For Stick/TIG welding Direct Current Elec-
trode Positive (DCEP), connect work
cables to Negative (−) terminals and elec-
trode holder cables to CC terminals.
For Stick/TIG Direct Current Electrode
Negative (DCEN), connect work cables to
Ref. 190 377 / 802 292-A
CC terminals and electrode holder cables
to Negative (−) terminals.
If unit has the Polarity switch option, connect work cables to Work receptacles and
electrode holder cables to Electrode receptacles.
Be sure Process Selector switches are
set correctly. See Section 6-3.
Page 23
5-9.Making Dual Operator Mode CC Weld Connections w/ Common Work Cable
Tools Needed:
INADEQUATE CABLE CONNECTIONS can cause serious damage to welding generator and create a hazardous condition.
When making weld connections with a common work cable, connect a weld cable of adequate size between the Negative (−) weld termi-
nals, and connect a single weld cable of adequate size from the Welder B (right) Negative (−) terminal to the workpiece.
When using these connections as a common work terminal, all connections must be of the same polarity.
For a common work cable connection, the work cable must be able to carry the combined weld output of both modules (see Section 5-15
for proper cable size).
Direct Current Electrode Positive
(DCEP) connections are shown.
3/4 in
Welder A (Left) Side
2
Welder B (Right) Side
Note position
of Process
Selector
switches.
1
4
2
3
Ref. 190 377 / 802 292-A
Stop engine.
Do not exceed machine duty cycle.
For common work connection, work
cable must be able to carry combined
weld output of both CC weld output terminals (see Section 5-15 for proper
cable size).
For Stick/TIG welding Direct Current Electrode Positive (DCEP), connect common
work cable and work jumper cable to Welder B (right) Negative (−) terminal. Connect
other end of work jumper cable to Welder A
(left) Negative (−) terminal.
Connect electrode holder cables to CC terminals.
For Stick/TIG Direct Current Electrode
Negative (DCEN), connect common work
cable and work jumper cable to Welder B
(right) CC terminal. Connect other end of
work jumper cable to Welder A (left) CC terminal.
Connect electrode holder cables to Negative (−) terminals.
If unit has the Polarity switch option, connect common work cable and work jumper
cable to Welder B (right) Work receptacle.
Connect other end of work jumper cable to
Welder A (left) Work receptacle.
Connect electrode holder cables to Electrode receptacles.
Be sure Process Selector switches
and optional Polarity switches are set
correctly. See Section 6-3.
OM-494 Page 19
Page 24
5-10. Making Dual Operator CV Weld Connections w/ Separate Work Cables
Tools Needed:
Direct Current Electrode Positive
(DCEP) connections are shown.
3/4 in
Welder A (Left) Side
Note position
of Process
Selector
switches.
Note position
of optional
2
Polarity
switch.
1
Welder B (Right) Side
Note position
of optional Po-
larity switch.
2
Stop engine.
Do not exceed machine duty cycle.
Use Dual Operator mode for CC and
CV welding (see Section 6-1).
See Section 5-15 for proper cable size.
1Strain Reliefs
Route cables through strain reliefs.
2Wire Feeder Cables
OM-494 Page 20
3
3Work Cables
For MIG and FCAW welding Direct Current
Electrode Positive (DCEP), connect work
cables to Negative (−) terminals and wire
feeder cables to CV terminals.
For MIG and FCAW Direct Current Electrode Negative (DCEN), connect work
cables to CV terminals and wire feeder
cables to Negative (−) terminals.
Ref. 190 377 / 802 292-A
If unit has the Polarity switch option, connect work cables to Work receptacles and
wire feeder cables to CV receptacles.
Place optional Polarity switches in Re-
verse position when using CV weld receptacles. There is no CV weld output
when switch is in Straight position.
Be sure Process Selector and Polarity
switches are set correctly. See Section
6-3.
Page 25
5-11. Making Dual Operator CV Weld Connections w/ Common Work Cable
Tools Needed:
INADEQUATE CABLE CONNECTIONS can cause serious damage to welding generator and create a hazardous condition.
When making weld connections with a common work cable, connect a weld cable of adequate size between the Negative (−) weld termi-
nals, and connect a single weld cable of adequate size from the Welder B (right) Negative (−) terminal to the workpiece.
When using these connections as a common work terminal, all connections must be of the same polarity.
For a common work cable connection, the work cable must be able to carry the combined weld output of both modules (see Section 5-15
for proper cable size).
3/4 in
Welder A (Left) Side
Note position
of optional
Polarity
switch.
2
Direct Current Electrode Positive
(DCEP) connections are shown.
Note position
of Process
Selector
switches.
1
3
Welder B (Right) Side
Note position of optional
4
Polarity switch.
2
Stop engine.
Do not exceed machine duty cycle.
For common work connection, work
cable must be able to carry combined
weld output of both CC weld output terminals (see Section 5-15 for proper
cable size).
For MIG and FCAW welding Direct Current
Electrode Positive (DCEP), connect common work cable and work jumper cable to
Welder B (right) Negative (−) terminal. Connect other end of work jumper cable to
Welder A (left) Negative (−) terminal.
Connect wire feeder cables to CV terminals.
For MIG and FCAW Direct Current Electrode Negative (DCEN), connect common
work cable and work jumper cable to Welder B (right) CV terminal. Connect other end
of work jumper cable to Welder A (left) CV
terminal.
Ref. 190 377 / 802 292-A
Connect wire feeder cables to Negative (−)
terminals.
If unit has the Polarity switch option, connect common work cable and work jumper
cable to Welder B (right) Work receptacle.
Connect other end of work jumper cable to
Welder A (left) Work receptacle.
Connect wire feeder cables to CV receptacles.
Place optional Polarity switches in Re-
verse position when using CV weld receptacles. There is no CV weld output
when switch is in Straight position.
Be sure Process Selector and Polarity
switches are set correctly. See Section
6-3.
OM-494 Page 21
Page 26
5-12. Making Dual Operator CC And CV Weld Connections w/ Separate Work Cables
Tools Needed:
3/4 in
Direct Current Electrode Positive
(DCEP) connections are shown.
Welder A (Left) Side
Note position
of Process
Selector
switches.
Welder B (Right) Side
Note position
of optional
3
Stop engine.
Do not exceed machine duty cycle.
Polarity
switch.
Use Dual Operator mode for CC and
CV welding (see Section 6-1).
See Section 5-15 for proper cable size.
1Strain Reliefs
Route cables through strain reliefs.
2Electrode Holder Cable
3Wire Feeder Cable
4Work Cables
For Stick/TIG welding Direct Current Elec-
trode Positive (DCEP), connect work cable
1
4
to Negative (−) terminal and electrode holder cable to CC terminal.
For Stick/TIG Direct Current Electrode
Negative (DCEN), connect work cable to
CC terminal and electrode holder cable to
Negative (−) terminal.
Be sure Process Selector switches are
set correctly. See Section 6-3.
For MIG and FCAW welding Direct Current
Electrode Positive (DCEP), connect work
cable to Negative (−) terminal and wire
feeder cable to CV terminal.
For MIG and FCAW Direct Current Electrode Negative (DCEN), connect work
cable to CV terminal and wire feeder cable
to Negative (−) terminal.
2
Ref. 190 377 / 802 292-A
For Stick/TIG welding on units with Polarity
switch option, connect work cable to Work
receptacle and electrode cable to Electrode
receptacle.
For MIG/FCAW welding on units with Polarity switch option, connect work cable to
Work receptacle and wire feeder cable to
CV receptacle.
Place optional Polarity switches in Re-
verse position when using CV weld receptacles. There is no CV weld output
when switch is in Straight position.
Be sure Process Selector and Polarity
switches are set correctly. See Section
6-3.
OM-494 Page 22
Page 27
5-13. Making Dual Operator CC And CV Weld Connections w/ Common Work Cable
Tools Needed:
3/4 in
INADEQUATE CABLE CONNECTIONS can cause serious damage to welding generator and create a hazardous condition.
When making weld connections with a common work cable, connect a weld cable of adequate size between the Negative (−) weld termi-
nals, and connect a single weld cable of adequate size from the Welder B (right) Negative (−) terminal to the workpiece.
When using these connections as a common work terminal, all connections must be of the same polarity.
For a common work cable connection, the work cable must be able to carry the combined weld output of both modules (see Section 5-15
for proper cable size).
Direct Current Electrode Positive
Welder A (Left) Side
(DCEP) connections are shown.
Note position
of Process
Selector
switches.
Welder B (Right) Side
Note position of
optional Polarity
switch.
3
Stop engine.
Do not exceed machine duty cycle.
For common work connection, work
cable must be able to carry combined
weld output of both CC weld output terminals (see Section 5-15 for proper
cable size).
Use Dual Operator mode for CC and CV
welding (see Section 6-1).
1Strain Reliefs
Route cables through strain reliefs.
2Electrode Holder Cable
3Wire Feeder Cable
4Work Jumper Cable
5Common Work Cable
1
4
For Direct Current Electrode Positive
(DCEP), connect common work cable and
work jumper cable to Welder B (right) Negative (−) terminal. Connect other end of work
jumper cable to Welder A (left) Negative (−)
terminal.
Connect electrode holder cable to either CC
terminal.
Connect wire feeder cable to CV terminal on
other side.
Be sure Process Selector switches are
set correctly. See Section 6-3.
For Direct Current Electrode Negative
(DCEN), connect common work cable and
work jumper cable to Welder B (right) CC
terminal. Connect other end of work jumper
cable to Welder A (left) CV terminal.
5
2
Ref. 190 377 / 802 292-A
Connect electrode holder cable to either
Negative (−) terminal, and wire feeder cable
to remaining Negative (−) terminal.
If unit has the Polarity switch option, connect
common work cable and work jumper cable
to Welder B (right) Work receptacle. Connect other end of work jumper cable to Welder A (left) Work receptacle.
Connect electrode holder cable to either
Electrode receptacle.
Connect wire feeder cable to CV receptacle
on other side.
Place optional Polarity switch in Re-
verse position when using CV weld receptacle. There is no CV weld output
when switch is in Straight position.
Be sure Process Selector and Polarity
switches are set correctly. See Section
6-3.
OM-494 Page 23
Page 28
5-14. Making Single Operator CC Weld Connections
Direct Current Electrode Positive
(DCEP) connections are shown.
Welder A (left) Terminals Inactive
In Single Operator Mode
Note position
of Process
Selector
switch.
1
3
Welder B(Right) Side
2
Tools Needed:
3/4 in
Stop engine.
Do not exceed machine duty cycle.
Welder A (left) weld output terminals
are disabled in Single Operator mode.
Connect only to Welder B (right) terminals for Single Operator mode operation.
Use Single Operator mode for CC weld-
ing only. Welder A and Welder B CV
weld output terminals are disabled in
OM-494 Page 24
Single Operator mode. (see Section
5-8).
See Section 5-15 for proper cable size.
See Section 5-15 for proper cable size.
1Strain Relief
Route cables through strain reliefs.
2Electrode Holder Cable
3Work Cable
For Stick/TIG welding Direct Current Elec-
trode Positive (DCEP), connect work cable
190 377 / 802 292-A
to Negative (−) terminal and electrode holder cable to CC terminal.
For Stick/TIG Direct Current Electrode Negative (DCEN), connect work cable to CC
terminal and electrode holder cable to Negative (−) receptacle.
If unit has the Polarity switch option, connect work cable to Work terminal and electrode holder cable to Electrode receptacle.
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
Not Exceeding***
150 ft
(45 m)
200 ft
(60 m)
250 ft
(70 m)
300 ft
(90 m)
350 ft
(105 m)
60 − 100%
Duty
10 − 100% Duty Cycle
Cycle
400 ft
(120 m)
2502 (35)1 (50)1/0 (60)2/0 (70)3/0 (95)4/0 (120)
3001 (50)1/0 (60)2/0 (70)3/0 (95)4/0 (120)
3501/0 (60)2/0 (70)3/0 (95)4/0 (120)
4001/0 (60)2/0 (70)3/0 (95)4/0 (120)
5002/0 (70)3/0 (95)4/0 (120)
6003/0 (95)4/0 (120)
7004/0 (120)
8004/0 (120)
* This chart is a general guideline and may not suit all applications. If cables overheat, use next size larger cable.
**Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
( ) = mm2 for metric useS-0007-F
***For distances longer than those shown in this guide, call a factory applications representative at 920-735-4505.
sure to ether can harm your
health. Follow manufacturer’s safety instructions on
cylinder.
Do not use Ether Starting Aid
while engine is running.
Open right side door.
1Ether Cylinder
2Nozzle
Remove cover and clean cylinder
nozzle.
3Clamp
4Fitting
5Cap
6Valve
Remove cap and clean fitting.
Install cylinder on fitting. Tighten
clamp.
After installing cylinder, wait at
least 10 minutes before using
to let ether particles settle and
prevent atomizer plugging.
Put cap on fitting when cylinder is
removed.
5-17. Remote 14 Receptacle Information
NOTE
24 VOLTS AC
REMOTE
OUTPUT
CONTROL
A/V
AMPERAGE
VOLTAGE
Place Welder Selector switch in Welder A/Welder B position (dual operator mode) for
both remote receptacles to work. Welder A (left) remote receptacle output contactor
and control is disabled when switch is in Welder B position.
Socket*Socket Information
A24 volts ac. Protected by circuit breakers CB5 and CB6.
BContact closure to A completes 24 volts ac contactor control circuit.
COutput to remote control; +10 volts dc in CV, 0 to +10 volts dc in CC.
DRemote control circuit common.
E0 to +10 volts dc input command signal from remote control.
F
H
Current feedback; 0 to +10 volts dc, 1 volt per 100 amperes.
Voltage feedback; +1 volts dc per 10 arc volts.
ether1 7/96 − 153 382-A / 190 377 / 802 291-A
115 VOLTS AC
GND
*The remaining sockets are not used.
I
J
KChassis common.
GCircuit common for 24 and 115 volts ac circuits.
115 volts, 15 amperes, 60 Hz ac. Protected by circuit breakers CB5 and CB6.
Contact closure to I completes 115 volts ac contactor control circuit.
OM-494 Page 27
Page 32
5-18. Remote 14 Receptacle Connections
AJ
K
B
L
C
D
I
NH
M
G
F
E
AJ
K
B
L
NH
C
M
D
E
OR
Dual Operator Operation
I
G
F
OR
AJ
K
B
L
NH
C
M
D
E
OR
Single Operator Operation
I
G
600 AMPS
F
OM-494 Page 28
Ref. 802 291-A
Page 33
SECTION 6 − OPERATING THE WELDING GENERATOR
NOTE
6-1.Engine Controls
When facing the front panel, the Welder B controls and weld terminals are on the
right and the Welder A side controls and weld terminals are on the left.
3
451
2
See Section 6-3 for weld control
descriptions.
1Engine Start Button
2Manual Stop Control
3Ether Starting Aid Switch (Optional)
Push switch up and release while cranking
engine to release ether.
To Start: Press button and use Ether switch
(if necessary). Release button when engine
starts.
If the engine does not start, let engine
come to a complete stop before attempting restart.
190 377
To Stop: Pull control out and hold. Release
control when engine stops.
4Battery Charging Warning Light
Light goes on when battery is not charging.
If light goes on, stop engine and check
engine belt.
5Engine Hour Meter
OM-494 Page 29
Page 34
6-2.Weld Controls (See Section 6-3)
1
300 AMPS300 AMPS
WELDER AWelder B
600 AMPS
Welder B
600 AMPS
10
342
897
5
6
OM-494 Page 30
Ref. 191 848
Page 35
6-3.Weld Control Descriptions (See Section 6-2)
1Welder Selector Switch
Use switch to select Dual Operator or Single
Operator welding mode.
Place switch in Welder A/Welder B (dual oper-
ator) position for CC and CV output from Welder A (left) and Welder B (right) weld output terminals. Control the weld output from the terminals on each side using the weld controls on
that same side.
Place switch in Welder B (single operator)
position for CC weld output from Welder B
(right) weld output terminals only. CV weld output terminals on both sides do not work when
unit is in Single Operator mode.
Welder A (left) weld output terminals are
disabled in Single Operator mode. Connect only to Welder B (right) terminals for
Single Operator operation.
When in single Operator mode, only CC
weld output is available. Welder A (left)
and Welder B (right) side CV weld output
terminals are disabled in Single Operator
mode. (see Section 5-8).
2Process Selector Switch
Use switch to select output for weld process.
If switch is in Stick/Tig position, place Welder
Selector switch in Welder A/Welder B or Welder B Position. If switch is in MIG position, place
Welder Selector switch in Welder A/Welder B
position only.
CV weld output for MIG is only available
when Welder Selector switch is in Welder
A/Welder B position. All weld output
stops if either Process Selector switch
is placed in MIG position when Welder
Selector switch is in Welder B position.
Place optional Polarity switch in Reverse
position when using CV weld output.
There is no CV weld output when Polarity
switch is in Straight position.
Do not switch under load or with out-
put on.
3Arc Force (Dig) Control
Use control to automatically increase amper-
age as arc length is decreased to assist in arc
starts and reduce the chance of the electrode
sticking in the puddle. Turn clockwise to increase short-circuit amperage. Set at minimum for TIG welding.
4Hot Start Switch
Use switch to disable hot start circuit. Turn
switch On for Stick (SMAW) and Submerged
Arc (SAW) Welding, and Air Carbon Arc Cutting and Gouging (CAC-A). Turn switch Off for
TIG (GTAW) welding.
When switch is in On position, higher short-circuit amperage helps arc starting. After arc
starts, the front panel or remote Amperage/
Voltage control setting determines weld amperage.
The hot start circuit does not function
when constant voltage (CV) welding.
5Amperage/Voltage Control
When Process Selector switch is in the Stick/
TIG position, turn control clockwise to increase amperage. Read amperage from outer
scale of control. The Amperage/Voltage control adjusts amperage only when constant current (CC) welding and does not adjust opencircuit voltage.
When Process Selector switch is in the MIG
position, turn control clockwise to increase
voltage. Voltmeter value changes as control
knob is turned. Control can be adjusted while
welding.
When Welder Selector switch is in Welder
B position (single operator mode), weld
amperage is two times the value selected
by the Amperage/Voltage control. For example, if Amperage/Voltage control is set
to 250 A, weld output is actually 500A.
6Weld Meters
With Process Selector switch in the Stick/Tig
position, meters read 0 (zero) with contactor
off. Meters display actual output voltage and
amperage with contactor on.
With Process Selector switch in the MIG position, voltmeter displays preset voltage with
contactor off. Voltmeter and ammeter display
actual output voltage and amperage with contactor on.
7High Temperature Shutdown Light
Light goes on and weld output stops if weld
rectifier gets too warm. Let unit cool before
welding.
8Remote Amperage/Voltage 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 5-17).
9Output (Contactor) Switch
For front panel control of output, place switch
in On (Hot) position. For remote control of output, place switch in Remote position, and connect remote device (see Section 5-17).
Weld output terminals are energized
when Output (Contactor) switch is On
and engine is running.
10 Polarity Switch (Optional)
Do not switch under load.
Use switch to change polarity of weld output
(see Sections 5-7 thru 5-14).
Place optional Polarity switch in Reverse
position when using CV weld receptacle.
There is no CV weld output when switch is
in Straight position.
OM-494 Page 31
Page 36
SECTION 7 − OPERATING AUXILIARY EQUIPMENT
7-1.120 Volt And 240 Volt Duplex Receptacles
Be sure equipment connected to the
240 V receptacles is GFCI-protected.
Generator power is not affected by
position of Welder Selector switch.
4 kVA/kW generator power output is
shared by all receptacles.
1240 V 20 A AC Receptacle RC1
2120 V 20 A AC GFCI Receptacle
GFCI 1
3240 V 20 A AC Receptacle RC2
4120 V 20 A AC GFCI Receptacle
GFCI 2
Receptacles supply 60 Hz single-phase
power at weld/power speed.
If a ground fault is detected, the GFCI re-
ceptacle(s) circuit opens to disconnect the
faulty equipment and the GFCI Reset button pops out. Check for damaged tools,
cords, plugs, etc. connected to the receptacle. Press button to reset receptacle and
resume operation.
At least once a month, run engine at
weld/power speed and press Test button to verify GFCI is working properly.
5Circuit Breakers CB1 And CB2
6Circuit Breakers CB3 And CB4
CB1 and CB2 protect RC1 and GFCI 1 from
overload. If CB1 or CB2 opens, RC1 does
not work. 120 volts may still be present at
RC1. If CB2 opens, GFCI 1 does not work.
Press button to reset breaker.
CB3 and CB4 protect RC2 and GFCI 2 from
overload. If CB3 or CB4 opens, RC2 does
not work. 120 volts may still be present at
152364
190 376
RC2. If CB4 opens, GFCI 2 does not work.
Press button to reset breaker.
If a circuit breaker continues to open,
contact Factory Authorized Service
Agent.
Maximum output from each 120 volt GFCI
receptacle is 2.4 kVA/kW. Maximum output
from each 240 volt duplex receptacle half is
4.0 kVA/kW.
Total combined output from all receptacles
is 4 kVA/kW.
EXAMPLE: If 12 A is drawn from RC1, only
9 A is available at GFCI 1:
(240 V x 12 A) + (120 V x 9 A) = 4.0 kVA/kW
Generator power is not affected by
weld output.
OM-494 Page 32
Page 37
SECTION 8 − MAINTENANCE & TROUBLESHOOTING
8-1.Routine Maintenance
Stop engine before maintaining.
Recycle engine
fluids.
See Engine Manual and Maintenance Label
for important start-up, service, and storage
information. Service engine more often if
used in severe conditions.
Every
8
Hours
Every
50
Hours
Every
100
Hours
Every
250
Hours
Every
500
Hours
Every
1000
Hours
= Check = Change = Clean = Replace
* To be done by Factory Authorized Service Agent
Battery Terminals Air Cleaner Hoses Oil Oil Filter
Unreadable LabelsSpark Arrestor
Weld Cables
1/2 in.
(13 mm)
OR
FUEL
SLUDGE
Reference
Section 5-5,
8-4
Section 8-3
Engine
Manual,
Section 8-9
Section 8-4,
8-10 and
Engine
Manual
Fan Belt Tension Inside Unit FuelFilter Drain Sludge
Slip Rings*
Brushes*
Valve Clearance*
OM-494 Page 33
Page 38
8-2.Maintenance Label
OM-494 Page 34
Page 39
8-3.Servicing Air Cleaner
Keep nozzle
2 in (51 mm)
from element.
BlowInspect
Optional
Stop engine.
Do not run engine without air
2
413
cleaner or with dirty element. Engine damage caused by using a
damaged element is not covered
by the warranty.
The air cleaner primary element can
be cleaned but the dirt holding capacity of the filter is reduced with each
cleaning. The chance of dirt reaching
the clean side of the filter while cleaning and the possibility of filter damage
makes cleaning a risk. Consider the
5
risk of unwarrantable equipment
damage when determining whether
to clean or replace the primary element.
If you decide to clean the primary element, we strongly recommend installing an optional safety element to provide additional engine protection.
Never clean a safety element. Replace the safety element after servicing the primary element three times.
Clean or replace primary element if dirty
(see note above before cleaning). Re-place primary element if damaged. Replace primary element yearly or after six
cleanings.
1Housing
2Safety Element (Optional)
3Primary Element
4Dust Cap
5Dust Ejector
To clean air filter:
Wipe off cap and housing. Remove cap
and dump out dust. Remove element(s).
Wipe dust from inside cap and housing
with damp cloth. Reinstall safety element
(if present). Reinstall cap.
Do not clean housing with air
hose.
Clean primary element with compressed
air only.
Air pressure must not exceed 100 psi
(690 kPa). Use 1/8 in (3 mm) nozzle and
keep nozzle at least 2 in (51 mm) from
inside of element. Replace primary element if it has holes or damaged gaskets.
Reinstall primary element and cap (dust
ejector down).
1Oil Filter
2Oil Drain Plug
3Oil Drain Hose (Optional)
4Oil Fill Cap
5Primary Fuel Filter (Fuel/
Water Separator)
6Petcock
7Secondary Fuel Filter
8Fuel Shutoff Valve Lever
9Sludge Drain Plug
To change oil and filter:
See engine manual.
To drain water from fuel system:
Open primary fuel filter petcock and
drain water into metal container.
Close petcock when water-free fuel
flows.
To replace primary fuel filter:
Close shutoff valve and turn filter
counterclockwise. Remove filter.
Apply thin coat of fuel to gasket on
new filter. Install new filter and turn
clockwise. Open shutoff valve.
Bleed air from fuel system according to engine manual.
Inspect fuel line, and replace if
cracked or worn.
To replace secondary fuel filter:
See engine manual.
To drain sludge from fuel tank:
This procedure should only be
done by a Factory Authorized
Service Agent.
Remove Welder A (left) control
panel to access sludge drain plug.
Put metal container under drain and
remove plug. Reinstall plug when
2
3
2
sludge has drained.
Reinstall control panel.
After servicing, start engine
and check for fuel leaks.
Stop engine, tighten connec-
tions as necessary, and wipe
up spilled fuel.
Close doors.
5
6
Tools Needed:
OM-494 Page 36
O
3/8, 7/16, 3/4 in
Ref. 158 633-C / Ref. 190 377 / Ref. S-176 697
Page 41
8-5.Adjusting Engine Speed
Engine Speed
(No Load)
Weld/Power
5
RPM (HZ)
1850 (61.6)
Engine speed is factory set and
should not require adjustment. After tuning engine, check engine
speed with tachometer. See table
for proper no load speed. If necessary, adjust speed as follows:
front of engine) several turns.
3Linkage
4Lock Nuts
Loosen nuts. Start engine and
move linkage until engine runs at
weld/power speed. Tighten nuts.
Stop engine.
5Speed Control Lever
Turn screw in until screw touches
lever. Tighten lock nut on screw.
Close side door.
4
Right Side
Tools Needed:
3/8 in
8-6.Servicing Optional Ether Starting Aid
3
132
Ref. 045 768-B
Stop engine.
Improper handling or expo-
sure to ether can harm your
health. Follow manufacturer’s safety instructions on
cylinder.
If engine does not start in cold
weather, check ether cylinder as
follows:
Remove cylinder from valve.
1
1Ether Cylinder
2Valve
3Scale
Weigh cylinder to see if it is empty.
Be sure atomizer is not plugged and
valve fitting is clean.
Replace cylinder according to
Section 5-16.
(935 g)(425 g)
FullEmpty
15 oz33 oz
2
ether2 7/96 − 153 382-A / Ref. 190 377 / S-0692
OM-494 Page 37
Page 42
8-7.Checking And Replacing Alternator Belt
Stop engine.
To check belt tension:
Remove rear panel.
1Alternator V-Belt
2Crank Pulley
3Alternator Pulley
Place straight edge along top of pul-
leys. Pull down belt as far as it will
go, then measure distance from
belt to straight edge.
If measurement is less than 1/2 in
(13 mm), belt is okay. If not okay,
adjust belt tension.
To adjust belt tension:
4Hex Nuts (2)
5Alternator Bracket
Loosen nuts. Pivot alternator until
belt is tight. Tighten nuts. Recheck
tightness of belt. Readjust if
necessary.
Replace belt if damaged or
cracked.
To replace belt:
Loosen hex nuts and pivot alternator clockwise. Remove belt.
Install new belt, pivot alternator until
belt is tight, and tighten nuts. Recheck tightness of belt after running
4
engine 15 minutes.
Reinstall rear panel.
Tools Needed:
1/2, 11/16 in
3
5
1/2 in
(13 mm)
Max
2
1
158 632 / Ref. 190 377
OM-494 Page 38
Page 43
8-8.Resetting Fan Belt Safety Shutdown
1
Stop engine.
1Cooling Fan V-Belt
See engine manual to replace or
tighten belt.
If belt breaks or becomes loose,
safety shutdown stops engine.
Correct problem, then reset safety
shutdown as follows:
2Rod
3Stop
4Bracket
5Handle
Pull handle towards front of unit un-
til stop snaps in position behind
bracket.
Close door.
Tools Needed:
3/8 in
Right Side
4
5
2
Pull Handle To
Reset Shutdown
158 715 / Ref. 158 632 / Ref. 190 377
3
OM-494 Page 39
Page 44
8-9.Inspecting And Cleaning Optional Spark Arrestor Muffler
3
2
1
Stop engine and let cool.
1Spark Arrestor Muffler
2Cleanout Plug
Remove plug and remove any dirt
covering cleanout hole.
3Exhaust Pipe
Start engine and run several min-
utes to blow out cleanout hole. If
nothing blows out of hole, briefly
cover end of exhaust pipe with fireproof material.
Stop engine and let cool.
Reinstall cleanout plug.
Tools Needed:
3/8 in
8-10. Checking Generator Brushes
1/2 in (13 mm)
Minimum Length
Replace
Damaged
Brushes
1-1/8 in (28.6 mm)
New Length
1
Ref. 800 633-B / Ref. 190 377
Stop engine and let cool.
1Generator Brush With Spring
Mark and disconnect leads at brush hold-
er cap. Remove brushes.
Replace brushes if damaged or if brush
material is at or near minimum length.
Ref 217 359-A / S−0233−A
OM-494 Page 40
Page 45
8-11. Circuit Protection
1
2
Tools Needed:
3
4
7
8
5
Stop engine.
When a circuit breaker or fuse opens,
it usually indicates a more serious
problem exists. Contact Factory Authorized Service Agent.
1Fuse F1
2Fuse F2
3Fuse F3
4Fuse F4
Open front panel.
Fuse F1 protects the exciter excitation
winding. If F1 opens, there is no weld or
generator power output on both sides.
Fuse F2 protects the exciter main field excitation winding. If F2 opens, there is no
weld output on both sides.
Fuse F3 protects Welder A (left) control
board PC1. If F3 opens, Welder A (left) weld
output stops.
Fuse F4 protects Welder B (right) control
9
board PC1. If F4 opens, Welder B (right)
weld output stops.
5Circuit Breaker CB5
6Circuit Breaker CB6
7Circuit Breaker CB7
8Circuit Breaker CB8
Circuit Breaker CB5 protects the 24 volt
and 115 volt ac output to Welder A (left) remote receptacle RC9. If CB5 opens, Welder A (left) RC9 24 and 115 volt ac output
stops.
Circuit Breaker CB6 protects the 24 volt
and 115 volt ac output to Welder B (right) remote receptacle RC8. If CB6 opens, Welder B (right) RC8 24 and 115 volt ac output
stops.
Circuit Breaker CB7 protects field current
regulator board PC4. If CB7 opens, weld
and generator power output on both sides
stops.
Circuit Breaker CB8 protects the generator
field flashing circuit. If CB8 opens, weld and
6
Ref. 802 300 / Ref. 802 292-A
generator power output may continue if
generator maintains excitation. Weld and
generator power output stops if generator
requires field flashing circuit to restore excitation.
Press button to reset circuit breaker.
9Fuses F11, F12, F13, F21, F22, F23
These fuses protect the weld stator wind-
ings. If fuse F11, F12, or F13 opens, Welder
B (right) side output is erratic or low. If fuse
F21, F22, or F23 opens, Welder A (left) side
output is erratic or low.
10 Thermostats TP3 And TP4 (Internal −
Not Shown)
Thermostat TP3 protects Welder A (left)
SR2 rectifier and TP4 protects Welder B
(right) SR3 rectifier from overheating. If
TP3 or TP4 opens, Welder A (left) or Welder
B (right) weld output stops and the High
Temp. Shutdown light goes on. Wait fifteen
minutes for module to cool and thermostat
to automatically reset. Reduce amperage,
voltage, or duty cycle before welding.
OM-494 Page 41
Page 46
8-12. Troubleshooting
A. Welding
TroubleRemedy
No weld output on either side; generator
power output okay at ac receptacles.
No weld output on either side and no
generator power output at ac receptacles.
No Welder A (left) weld output; Welder B
(right) weld output okay.
Place Output (Contactor) switches in On (Hot) position, or place switches in Remote position and connect
remote contactors to remote receptacles RC8 and RC9 (see Section 6-3).
Unit overheated (High Temp. Shutdown light goes on); wait several minutes for thermostat(s) TP3 and
TP4 to reset (see Section 8-11).
Check position of Process Selector switches and Welder Selector switch. All weld output stops if
either Process Selector switch is placed in CV position when Welder Selector switch is in Welder B
position (see Sections 6-1 and 6-3).
Check fuse F2, and replace if open (see Section 8-11). Have Factory Authorized Service Agent check
field current regulator board PC4.
Have Factory Authorized Service Agent check field current regulator board PC4 and Welder Selector
switch S2.
Disconnect equipment from generator power receptacles during start-up.
Check fuse F1, and replace if open (see Section 8-11).
Reset circuit breakers CB7 and/or CB8 (see Section 8-11).
Have Factory Authorized Service Agent check brushes and slip rings, field excitation circuit, rotor, stator,
and field current regulator board PC4.
Check fuse F3, and replace if open (see Section 8-11).
Check position of Welder Selector switch. Welder A (left) weld output stops when Welder Selector
switch is placed in Welder B position (see Section 6-1).
Unit overheated (High Temp. Shutdown light goes on); wait several minutes for thermostat(s) TP3 to
reset (see Section 8-11).
No Welder B (right) weld output; Welder
A (left) weld output okay;
Low Welder A (left) weld output; Welder B (right) output okay.
Low Welder B (right) weld output;
Welder A (left) weld output okay.
OM-494 Page 42
Have Factory Authorized Service Agent check Welder A (left) contactor circuit.
Check fuse F4, and replace if open (see Section 8-11).
Unit overheated (High Temp. Shutdown light goes on); wait several minutes for thermostat(s) TP4 to
reset (see Section 8-11).
Have Factory Authorized Service Agent check Welder B (right) contactor circuit.
Check position of Process Selector switch (see Section 6-3).
Increase Amperage/Voltage control setting.
Check fuses F21, F22, and F23, and replace if open. If fuse(s) are open, have Factory Authorized
Service Agent check main rectifier SR2.
Have Factory Authorized Service Agent check main rectifier SR2, synchronization transformers T5,
T6 and T7, and control board PC1.
Check position of Process Selector switch (see Section 6-3).
Increase Amperage/Voltage control setting.
Check fuses F11, F12, and F13, and replace if open. If fuse(s) are open, have Factory Authorized
Service Agent check main rectifier SR3.
Have Factory Authorized Service Agent check main rectifier SR3, synchronization transformers T8,
T9 and T10, and control board PC5.
Page 47
TroubleRemedy
Low weld output on both sides.Check engine speed, and adjust if necessary (see Section 8-5).
Check position of Process Selector switch(s) (see Section 6-3).
Increase Amperage/Voltage controls settings.
Have Factory Authorized Service Agent check field current regulator board PC4.
High weld output on both sides.Have Factory Authorized Service Agent check field current regulator board PC4.
Erratic weld output on either side.Check and tighten connections inside and outside unit.
Be sure connection to work piece is clean and tight.
Use dry, properly stored electrodes.
Remove excessive coils from weld cables.
Check Process Selector switch(s) connections and contacts.
Welder A (left) side: check fuses F21, F22, and F23, and replace if open. If fuse(s) are open, have
Factory Authorized Service Agent check main rectifier SR2.
Welder B (right) side: check fuses F11, F12, and F13, and replace if open. If fuse(s) are open, have
Factory Authorized Service Agent check main rectifier SR3.
Have Factory Authorized Service Agent check Welder Selector switch S2.
Low open-circuit voltage on both sides. Check engine speed, and adjust if necessary (see Section 8-5).
Have Factory Authorized Service Agent check field current regulator board PC4.
Low open-circuit voltage on either side. Increase Amperage/Voltage control setting.
Welder A (left) side: check fuses F21, F22, and F23, and replace if open. If fuse(s) are open, have
Factory Authorized Service Agent check main rectifier SR2.
Welder B (right) side: check fuses F11, F12, and F13, and replace if open. If fuse(s) are open, have
Factory Authorized Service Agent check main rectifier SR3.
Have Factory Authorized Service Agent check main rectifiers SR2 and SR3, synchronization transformers T5 thru T10, and control board PC1 or PC5.
No control of weld output on either
side.
No voltage control on either side; opencircuit voltage present.
Wire feeder does not work (either side). Reset Welder A (left) circuit breaker CB5 or Welder B (right) circuit breaker CB6 (see Section 8-11).
Place A/V Control switch in Panel position, or place switch in Remote position and connect remote
control to remote receptacle RC8 or RC9 (see Sections 5-17 and 6-3).
Have Factory Authorized Service Agent check control board PC1 or PC5.
Repair or replace remote device.
Place A/V Control switch in Panel position, or place switch in Remote position and connect remote
control to remote receptacle RC8 or RC9 (see Sections 5-17 and 6-3).
Check connections to Remote receptacle RC8 and RC9.
Have Factory Authorized Service Agent check control board PC1 or PC5.
Check position of Process Selector switches and Welder Selector switch. All weld output stops if
either Process Selector switch is placed in CV position when Welder Selector switch is in Welder B
position (see Sections 6-1 and 6-3).
Check connections to Remote 14 receptacle RC8 (see Section 5-17).
Place optional Polarity switches in Reverse position. There is no CV weld output when Polarity switch
is in Straight position.
Have Factory Authorized Service Agent check brushes and slip rings, and field excitation circuit.
Repair or replace wire feeder.
OM-494 Page 43
Page 48
B. Generator Power
TroubleRemedy
No output at generator power ac receptacles.
High or low output at generator power ac
receptacles.
Reset receptacle circuit breakers (see Section 7-1).
Press GFCI reset button on 120 volt GFCI receptacles (see Section 7-1).
Check fuse F1, and replace if open (see Section 8-11).
Check receptacle(s) for continuity and proper connections. Replace receptacle(s) if necessary.
Have Factory Authorized Service Agent check brushes and slip rings.
Check engine speed, and adjust if necessary (see Section 8-5).
C. Engine
TroubleRemedy
Engine will not crank.Check battery voltage, and replace battery if necessary.
Check battery connections and tighten if necessary.
Have Factory Authorized Service Agent check Engine Start Button PB1.
Engine cranks but does not start.Check fuel level (see Section 5-5).
Open fuel valve (see Section 5-5).
Check battery voltage, and replace battery if necessary.
Check blower fan V-belt according to engine manual. Safety shutdown stops engine if belt is broken or
loose (see Section 8-8).
Check engine charging system according to engine manual.
See engine manual.
Engine suddenly stops.Check blower fan V-belt according to engine manual. Safety shutdown stops engine if belt is broken or
Battery discharges between uses.Clean battery, terminals, and posts with baking soda and water solution; rinse with clear water.
Engine uses oil during run-in period;
wetstacking occurs.
loose (see Section 8-8).
See engine manual.
Periodically recharge battery (approximately every 3 months).
Replace battery.
Check voltage regulator and connections according to engine manual.
Dry engine (see Section 10).
OM-494 Page 44
Page 49
Notes
OM-494 Page 45
Page 50
SECTION 9 − ELECTRICAL DIAGRAMS
OM-494 Page 46
Figure 9-1. Circuit Diagram For Welding Generator
Page 51
OM-494 Page 47
210 657-A
Page 52
10-1. Wetstacking
1
SECTION 10 − RUN-IN PROCEDURE
Do not perform run-in
procedure at less than 20
volts weld output and do not
exceed duty cycle or equip-
ment damage may occur.
1Welding Generator
Run diesel engines near rated volt-
2
age and current during run-in period
to properly seat piston rings and
prevent wetstacking. See nameplate, rating label, or specifications
section in this manual to find rated
voltage and current.
Do not idle engine longer than
necessary. Piston rings seat
faster if engine runs at weld/
power rpm, and the welding
generator is kept loaded during
run-in.
2Engine Exhaust Pipe
Wetstacking is unburned fuel and
oil in the exhaust pipe and occurs
during run-in if the engine is run too
long at light load or idle rpm.
If exhaust pipe is coated with a wet,
black, tar-like substance, dry the
engine using one of the following
run-in procedures.
See the engine manual for additional engine run-in information.
run_in3 8/01
OM-494 Page 48
Page 53
10-2. Run-In Procedure Using Load Bank
4
2
3
Stop engine.
Do not touch hot exhaust
pipe, engine parts, or load
bank/grid.
Keep exhaust and pipe away
from flammables.
Do not perform run-in
procedure at less than 20
volts weld output and do not
exceed duty cycle or equipment damage may occur.
1Load Bank
1
Turn all load bank switches Off. If
needed, connect load bank to 115
volts ac wall receptacle or generator auxiliary power receptacle.
2Welding Generator
Place Welder Selector switch in
Welder B position (600 Amps), A/V
control in minimum position, and
both Process Selector switches in
Stick/TIG position.
3Weld Cables
Connect load bank to generator
Welder B (right) weld output terminals using proper size weld cables
with correct connectors. Observe
correct polarity.
Start engine and run for several
minutes.
Set load bank switches and then
adjust generator A/V control so load
equals 350 Amps at 40 volts.
Check generator and load bank
meters after first five minutes then
every fifteen minutes to be sure
generator is loaded properly.
Check oil level frequently dur-
ing run-in; add oil if needed.
After one hour (minimum) place A/V
control in minimum position, then
turn off load bank to remove load.
Run engine several minutes at no
load.
Stop engine and let cool.
4Engine Exhaust Pipe
Repeat procedure if wetstacking is
present.
S-0683
OM-494 Page 49
Page 54
10-3. Run-In Procedure Using Resistance Grid
6
2
3
4
+
5
Stop engine.
Do not touch hot exhaust
pipe, engine parts, or load
bank/grid.
Keep exhaust and pipe away
from flammables.
Do not perform run-in
procedure at less than 20
volts weld output and do not
exceed duty cycle or equipment damage may occur.
1Resistance Grid
Use grid sized for generator rated
output.
1
Turn Off grid.
2Welding Generator
Place Welder Selector switch in
Welder B position (600 Amps), A/V
control in minimum position, and
both Process Selector switches in
Stick/TIG position.
3Weld Cables
Connect grid to generator Welder B
(right) weld output terminals using
proper size weld cables with correct connectors (polarity is not important).
4Voltmeter
5Clamp-On Ammeter
Connect voltmeter and ammeter as
shown, if not provided on generator.
Start engine and run for several
minutes.
Set grid switches and then adjust
generator A/V control so load
equals 350 Amps at 40 volts.
Check generator and meters after
first five minutes then every fifteen
minutes to be sure generator is
loaded properly.
Check oil level frequently dur-
ing run-in; add oil if needed.
After one hour (minimum), place
A/V control in minimum position,
then shut down grid to remove load.
Run engine several minutes at no
load.
Stop engine and let cool.
6Engine Exhaust Pipe
Repeat procedure if wetstacking is
present.
OM-494 Page 50
S-0684
Page 55
SECTION 11 − GENERATOR POWER GUIDELINES
NOTE
The views in this section are intended to be representative of all engine-driven
welding generators. Your unit may differ from those shown.
11-1. Selecting Equipment
1
1Generator Power Receptacles
− Neutral Bonded To Frame
23-Prong Plug From Case
Grounded Equipment
32-Prong Plug From Double
Insulated Equipment
Do not use 2-prong plug un-
less equipment is double insulated.
2
3
OR
11-2. Grounding Generator To Truck Or Trailer Frame
1
GND/PE
2
Be sure equipment
has this symbol
and/or wording.
3
gen_pwr 11/02 − Ref. ST-159 730 / ST-800 577
Always ground generator
frame to vehicle frame to prevent electric shock and static
electricity hazards.
1Equipment Grounding
Terminal (On Front Panel)
2Grounding Cable (Not
Supplied)
3Metal Vehicle Frame
Connect cable from equipment
ground terminal to metal vehicle
frame. Use #10 AWG or larger
insulated copper wire.
If unit does not have GFCI re-
ceptacles, use GFCI-pro-
tected extension cord.
Electrically bond generator
frame to vehicle frame by
metal-to-metal contact.
Bed liners, shipping skids, and some running
gear insulate the welding generator from the vehicle frame. Always connect a ground wire from
the generator equipment grounding terminal to
bare metal on the vehicle frame as shown.
S-0854
OM-494 Page 51
Page 56
11-3. Grounding When Supplying Building Systems
12
GND/PE
Use ground device as stated
2
3
in electrical codes.
1Equipment Grounding
Terminal
2Grounding Cable
Use #10 AWG or larger insulated
copper wire.
3Ground Device
Ground generator to system
earth ground if supplying
power to a premises (home,
shop, farm) wiring system.
11-4. How Much Power Does Equipment Require?
3
2
1
3
AMPERES x VOLTS = WATTS
EXAMPLE 1: If a drill uses 4.5 amperes at 115 volts, calculate its running power
requirement in watts.
4.5 A x 115 V = 520 W
The load applied by the drill is 520 watts.
VOLTS 115
AMPS
Hz
4.5
60
ST-800 576-B
1Resistive Load
A light bulb is a resistive load and
requires a constant amount of power.
2Non-Resistive Load
Equipment with a motor is a non-re-
sistive load and requires approximately six times more power while
starting the motor than when running
(see Section 11-8).
3Rating Data
Rating shows volts and amperes, or
watts required to run equipment.
OM-494 Page 52
EXAMPLE 2: If three 200 watt flood lamps are used with the drill from Example 1,
add the individual loads to calculate total load.
(200 W + 200 W + 200 W) + 520 W = 1120 W
The total load applied by the three flood lamps and drill is 1120 watts.
S-0623
Page 57
11-5. Approximate Power Requirements For Industrial Motors
Single-Phase Induction Motor Starting Requirements
Motor Start
CodeGH JKLMNP
KVA/HP6.37.18.09.010.011.212.514.0
kVA/HP x HP x 1000
VOLTS
EXAMPLE: Calculate the starting amperage required for a 230 V, 1/4
HP motor with a motor start code of M.
Volts = 230 HP = 1/4 Using Table, Code M results in kVA/HP = 11.2
11.2 x 1/4 x 1000
230
= 12.2 A
CODE60
HP
Starting the motor requires 12.2 amperes.
AC MOTOR
2302.5
M
1/4
= STARTING AMPERAGE
Hz
PHASE
1
2
1Motor Start Code
2Running Amperage
3Motor HP
4Motor Voltage
To find starting amperage:
Step 1: Find code and use table to
find kVA/HP. If code is not listed,
multiply running amperage by six to
find starting amperage.
Step 2: Find Motor HP and Volts.
Step 3: Determine starting amper-
age (see example).
Welding generator amperage out-
put must be at least twice the
motor’s running amperage.
S-0624
11-9. How Much Power Can Generator Supply?
1
2
1Limit Load To 90% Of
Generator Output
Always start non-resistive (motor)
loads in order from largest to smallest, and add resistive loads last.
25 Second Rule
If motor does not start within 5
seconds, turn off power to prevent
motor damage. Motor requires
more power than generator can
supply.
Ref. ST-800 396-A / S-0625
OM-494 Page 55
Page 60
11-10. Typical Connections To Supply Standby Power
Properly install and ground this equipment according to
its Owner’s Manual and national, state, and local codes.
1234
Utility
Electrical
Service
Transfer Switch
5
Essential
Loads
Fused
Disconnect
Switch
(If Required)
Welding
Generator
Output
Have only qualified persons perform
these connections according to all
applicable codes and safety practices.
Properly install and ground this
equipment according to its Owner’s
Manual and national, state, and local
codes.
Customer-supplied equipment is re-
quired if generator will supply standby
power during emergencies or power outages.
1 Utility Electrical Service
2 Transfer Switch (Double-Throw)
Notes
Switch transfers the electrical load from
electric utility service to the generator. Transfer load back to electric utility when service is
restored.
Install correct switch (customer-supplied).
Switch rating must be same as or greater
than the branch overcurrent protection.
3 Fused Disconnect Switch
Install correct switch (customer-supplied) if
required by electrical code.
4 Welding Generator Output
Generator output voltage and wiring must be
consistent with regular (utility) system voltage and wiring.
Connect generator with temporary or permanent wiring suitable for the installation.
Turn off or unplug all equipment connected to
generator before starting or stopping engine.
When starting or stopping, the engine has
low speed which causes low voltage and
frequency.
5 Essential Loads
Generator output may not meet the electrical
requirements of the premises. If generator
does not produce enough output to meet all
requirements, connect only essential loads
(pumps, freezers, heaters, etc. − See Section 11-4).
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
*Recommended Spare Parts.
♦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.
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
*Recommended Spare Parts.
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-494 Page 63
Page 68
Hardware is common and
not available unless listed.
1
26
27
25
28
24
23
29
22
30
3231
2
3
4
33
34
7
8
21
20
6
9
10
19
18
11
16
17
15
14
13
35
36
5
12
OM-494 Page 64
802 320-A
Figure 12-3. Side Control Panels − Welder B (Right) Side Shown
Page 69
Item
No.
Dia.
Mkgs.
Part
No.
Description
Figure 12-3. Side Control Panels (Figure 12-1 Item 57)
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
*Recommended Spare Parts.
♦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.
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
*Recommended Spare Parts.
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.
OM-494 Page 68
Page 73
Notes
OM-494 Page 69
Page 74
Page 75
Warranty Questions?
Call
1-800-4-A-MILLER
for your local
Miller distributor.
Your distributor also gives
you ...
Service
You 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.
The expertise of the
distributor and Miller is
there to help you, every
step of the way.
Effective January 1, 2005
(Equipment with a serial number preface of “LF” or newer)
This limited warranty supersedes all previous Miller warranties and is exclusive with no other
LIMITED WARRANTY − Subject to the terms and conditions
below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to
its original retail purchaser that new Miller 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 Miller.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.
Within the warranty periods listed below, Miller will repair or
replace any warranted parts or components that fail due to such
defects in material or workmanship. Miller must be notified in
writing within thirty (30) days of such defect or failure, at which
time Miller will provide instructions on the warranty claim
procedures to be followed.
Miller 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 Sources (Unless Otherwise Stated)
(NOTE: Engines are warranted separately by
the engine manufacturer.)
3. 1 Year — Parts and Labor Unless Specified
* DS-2 Wire Feeder
* Motor Driven Guns (w/exception of Spoolmate
Spoolguns)
* Process Controllers
* Positioners and Controllers
* Automatic Motion Devices
* RFCS Foot Controls
* Induction Heating Power Sources and Coolers
* Water Coolant Systems (Non-Integrated)
* Flowgauge and Flowmeter Regulators (No Labor)
* HF Units
* Grids
* Maxstar 85, 140
* Spot Welders
* Load Banks
* Arc Stud Power Sources & Arc Stud Guns
* Racks
* Running Gear/Trailers
* Plasma Cutting Torches (except APT & SAF
Models)
* Field Options
(NOTE: Field options are covered under True
Blue®for 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
guarantees or warranties expressed or implied.
* Induction Heating Coils and Blankets
* APT & SAF Model Plasma Cutting Torches
* Remote Controls
* Accessory Kits
* Replacement Parts (No labor)
* Spoolmate Spoolguns
* Canvas Covers
Miller’s True Blue® Limited Warranty shall not apply to:
1. Consumable components; such as contact tips,
cutting nozzles, contactors, brushes, slip rings,
relays or parts that fail due to normal wear. (Exception:
brushes, slip rings, and relays are covered on Bobcat,
Trailblazer, and Legend models.)
2. Items furnished by Miller, 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
Miller, 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.
MILLER 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 Miller’s option: (1) repair; or (2)
replacement; or, where authorized in writing by Miller in
appropriate cases, (3) the reasonable cost of repair or
replacement at an authorized Miller service station; or (4)
payment of or credit for the purchase price (less reasonable
depreciation based upon actual use) upon return of the goods at
customer’s risk and expense. Miller’s option of repair or
replacement will be F.O.B., Factory at Appleton, Wisconsin, or
F.O.B. at a Miller authorized service facility as determined by
Miller. 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 MILLER 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 MILLER IS EXCLUDED AND DISCLAIMED
BY MILLER.
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.
miller_warr 1/05
Page 76
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
For Service
Contact a DISTRIBUTOR or SERVICE AGENCY near you.
Always provide Model Name and Serial/Style Number.
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
To locate a Distributor or Service Agency visit
www.millerwelds.com or call 1-800-4-A-Miller
Miller Electric Mfg. Co.
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
International Headquarters−USA
USA Phone: 920-735-4505 Auto-Attended
USA & Canada FAX: 920-735-4134
International FAX: 920-735-4125
European Headquarters −
United Kingdom
Phone: 44 (0) 1204-593493
FAX: 44 (0) 1204-598066
www.MillerWelds.com
Contact the Delivering Carrier to:
File a claim for loss or damage during
shipment.
For assistance in filing or settling claims, contact
your distributor and/or equipment manufacturer’s
Transportation Department.