Miller Electric Bobcat 225G Owner`s manual

OM-4434
218 653L
2008−10−22
Processes
Stick (SMAW) Welding
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
Non-Critical TIG (GTAW)
Welding
Description
Engine Driven Welding Generator
Bobcat 225
™
File: Engine Drive
Visit our website at
www.MillerWelds.com
From Miller to You
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 parts list will then help you to decide the
equipment manufacturer in exact part you may need to fix the problem.
the U.S.A. to be registered to
the ISO 9001:2000 Quality Warranty and service information for your
System Standard.
particular model are also provided.
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.
Mil_Thank 2005−04
Working as hard as you do
− every power source from
Miller is backed by the most
hassle-free warranty in the
business.
TABLE OF CONTENTS
SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3. Engine Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4. Hydraulic Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5. Compressed Air Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6. Additional Symbols For Installation, Operation, And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-7. California Proposition 65 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-8. Principal Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-9. EMF Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1. Signification des symboles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2. Dangers relatifs au soudage à l’arc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3. Dangers existant en relation avec le moteur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4. Dangers liés à l’hydraulique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-5. Dangers liés à l’air comprimé . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-6. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance . . . . .
2-7. Proposition californienne 65 Avertissements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-8. Principales normes de sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-9. Information EMF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3 − DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4 − SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1. Weld, Power, and Engine Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2. Dimensions, Weights, And Operating Angles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3. Dimensions For Units With Optional Running Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4. Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5. Fuel Consumption (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6. Fuel Consumption (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7. Volt-Ampere Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-8. Generator Power Curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5 − INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1. Installing Welding Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3. Rating Label Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4. Engine Prestart Checks (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-5. Engine Prestart Checks (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6. Installing Exhaust Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7. Connecting Or Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-8. Connecting To Weld Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9. Selecting Weld Cable Sizes* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 6 − OPERATING THE WELDING GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-1. Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-2. Cold Weather Engine Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-3. Typical Stick Welding Connections And Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-4. Typical MIG Welding Connections And Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-5. Typical MIG Connections And Settings Using Weld Control And Spoolgun . . . . . . . . . . . . . . . . . . . . .
SECTION 7 − OPERATING AUXILIARY EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-1. Standard Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-2. Optional Generator Power Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-3. Simultaneous Weld And Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-4. Wiring Optional 240 Volt Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS
SECTION 8 − MAINTENANCE (SUBARU-POWERED UNITS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-1. Maintenance Label (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-2. Routine Maintenance (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-3. Servicing Air Cleaner (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-4. Servicing Optional Spark Arrestor (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-5. Changing Engine Oil, Oil Filter, and Fuel Filter (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . .
8-6. Adjusting Engine Speed (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-7. Overload Protection (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9 − MAINTENANCE − (KOHLER-POWERED UNITS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-1. Maintenance Label (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2. Routine Maintenance (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-3. Servicing Air Cleaner (Kohler−Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-4. Changing Engine Oil, Oil Filter, and Fuel Filter (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . .
9-5. Adjusting Engine Speed (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6. Overload Protection (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-7. Servicing Optional Spark Arrestor (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 10 − TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-1. Welding Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-2. Generator Power Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-3. Engine Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 11 − PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1. Recommended Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 12 − ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 13 − GENERATOR POWER GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 14 − STICK WELDING (SMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 15 − MIG WELDING (GMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPLETE PARTS LIST - www.MillerWelds.com
OPTIONS AND ACCESSORIES
WARRANTY
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SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING
rom_2008−08
Protect yourself and others from injury — read and follow these precautions.
1-1. Symbol Usage
DANGER! − Indicates a hazardous situation which, if
not avoided, will result in death or serious injury. The
possible hazards are shown in the adjoining symbols
or explained in the text.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury. The possible
hazards are shown in the adjoining symbols or explained in the text.
NOTICE − Indicates statements not related to personal injury.
Indicates special instructions.
This group of symbols means Warning! Watch Out! ELECTRIC
SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions to avoid the
hazards.
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 1-8. Read and
follow all Safety Standards.
Only qualified persons should install, operate, maintain, and
repair 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 live whenever the output is on. The input
power circuit and 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 electrically 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.
Keep cords dry, free of oil and grease, and protected from hot metal
and sparks.
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 separate cable.
Do not touch electrode if you are in contact with the work, ground,
or another electrode from a different machine.
Use only well-maintained equipment. Repair or replace damaged
parts at once. Maintain unit according to manual.
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 worktable 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.
HOT PARTS can cause severe burns.
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.
FLYING METAL or DIRT 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.
OM-4434 Page 1
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.
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).
Do not weld where the atmosphere may contain flammable dust,
gas, or liquid vapors (such as gasoline).
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, cuffless trousers, high shoes, and a cap.
Remove any combustibles, such as a butane lighter or matches,
from your person before doing any welding.
After completion of work, inspect area to ensure it is free of sparks,
glowing embers, and flames.
Use only correct fuses or circuit breakers. Do not oversize or bypass them.
Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B
for hot work and have a fire watcher and extinguisher nearby.
NOISE can damage hearing.
BUILDUP OF GAS can injure or kill.
Noise from some processes or equipment can damage hearing.
Shut off shielding gas supply when not in use.
Always ventilate confined spaces or use approved air-supplied respirator.
Wear approved ear protection if noise level is
high.
MAGNETIC FIELDS can affect Implanted
Medical Devices.
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.
WELDING can cause fire or explosion.
Welding on closed containers, such as tanks, drums,
or pipes, can cause them to blow up. Sparks can fly off
from the welding arc. The flying sparks, hot workpiece,
and hot 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.
OM-4434 Page 2
Wearers of Pacemakers and other Implanted
Medical Devices should keep away.
Implanted Medical Device wearers should consult their doctor
and the device manufacturer before going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating
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 designed 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 persons to lift 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
protective clothing when working on a battery.
Stop engine before disconnecting or connecting battery 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
adding 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.
MOVING PARTS can injure.
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
components.
EXHAUST SPARKS can cause fire.
Do not let engine exhaust sparks cause fire.
Use approved engine exhaust spark arrestor in
required areas — see applicable codes.
HOT PARTS can cause severe burns.
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.
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
present 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 removing cap.
Using a generator indoors CAN KILL
YOU IN MINUTES.
Generator exhaust contains carbon monoxide.
This is a poison you cannot see or smell.
NEVER use inside a home or garage, EVEN IF
doors and windows are open.
Only use OUTSIDE and far away from windows, doors, and
vents.
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
flammables.
1-4. Hydraulic Hazards
HYDRAULIC EQUIPMENT can injure
or kill.
Incorrect installation or operation of this unit
could result in equipment failure and personal
injury. Only qualified persons should install, operate, and service this unit according to its
Owner’s Manual, industry standards, and national, state, and local codes.
Do not exceed the rated output or capacity of the hydraulic pump
or any equipment in the hydraulic system. Design hydraulic system so failure of any hydraulic component will not put people or
property at risk.
Before working on hydraulic system, turn off and lockout/tagout
unit, release pressure, and be sure hydraulic pressure cannot be
accidentally applied.
Do not work on hydraulic system with unit running unless you are a
qualified person and following the manufacturer’s instructions.
Do not modify or alter hydraulic pump or manufacturer-supplied
equipment. Do not disconnect, disable, or override any safety
equipment in the hydraulic system.
Use only components/accessories approved by the manufacturer.
Keep away from potential pinch points or crush points created by
equipment connected to the hydraulic system.
Do not work under or around any equipment that is supported only
by hydraulic pressure. Properly support equipment by mechanical
means.
OM-4434 Page 3
HYDRAULIC FLUID can injure or kill.
Before working on hydraulic system, turn off and
lockout/tagout unit, release pressure, and be sure
hydraulic pressure cannot be accidentally applied.
Relieve pressure before disconnecting or connecting hydraulic lines.
Check hydraulic system components and all connections and hoses for damage, leaks, and wear
before operating unit.
Wear protective equipment such as safety
glasses, leather gloves, heavy shirt and trousers,
high shoes, and a cap when working on hydraulic
system.
Use a piece of paper or cardboard to search for leaks−−never use
bare hands. Do not use equipment if leaks are found.
HYDRAULIC FLUID is FLAMMABLE−−do not work on hydraulics
near sparks or flames; do not smoke near hydraulic fluid.
Reinstall doors, panels, covers, or guards when servicing is
finished and before starting unit.
If ANY fluid is injected into the skin, it must be surgically removed
within a few hours by a doctor familiar with this type of injury or gangrene may result.
MOVING PARTS can injure.
Keep away from fans, belts and rotors.
Keep all doors, panels, covers, and guards
closed and securely in place.
Keep hands, hair, loose clothing, and tools away from moving
parts.
Before working on hydraulic system, turn off and lockout/tagout
unit, release pressure, and be sure hydraulic pressure cannot be
accidentally applied.
Have only qualified people remove guards or covers for maintenance and troubleshooting as necessary.
Reinstall doors, panels, covers, or guards when servicing is
finished and before starting engine.
HOT PARTS AND FLUID can cause severe
burns.
Do not touch hot parts bare handed or allow hot
fluid to contact skin.
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.
READ INSTRUCTIONS.
Read Owner’s Manual before installing, operating, or servicing unit.
Use only genuine replacement parts from the
manufacturer.
Perform maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
1-5. Compressed Air Hazards
COMPRESSED AIR EQUIPMENT can
injure or kill.
Incorrect installation or operation of this unit
could result in equipment failure and personal
injury. Only qualified persons should install, operate, and service this unit according to its
Owner’s Manual, industry standards, and national, state, and local codes.
Do not exceed the rated output or capacity of the compressor or
any equipment in the compressed air system. Design compressed air system so failure of any component will not put people
or property at risk.
Before working on compressed air system, turn off and lockout/
tagout unit, release pressure, and be sure air pressure cannot be
accidentally applied.
Do not work on compressed air system with unit running unless
you are a qualified person and following the manufacturer’s instructions.
Do not modify or alter compressor or manufacturer-supplied
equipment. Do not disconnect, disable, or override any safety
equipment in the compressed air system.
Use only components and accessories approved by the manufacturer.
Keep away from potential pinch points or crush points created by
equipment connected to the compressed air system.
Do not work under or around any equipment that is supported
only by air pressure. Properly support equipment by mechanical
means.
OM-4434 Page 4
COMPRESSED AIR can injure or kill.
Before working on compressed air system,
turn off and lockout/tagout unit, release pressure, and be sure air pressure cannot be accidentally applied.
Relieve pressure before disconnecting or connecting air lines.
Check compressed air system components
and all connections and hoses for damage,
leaks, and wear before operating unit.
Do not direct air stream toward self or others.
Wear protective equipment such as safety glasses, hearing protection, leather gloves, heavy shirt and trousers, high shoes, and
a cap when working on compressed air system.
Use soapy water or an ultrasonic detector to search for leaks−−
never use bare hands. Do not use equipment if leaks are found.
Reinstall doors, panels, covers, or guards when servicing is
finished and before starting unit.
If ANY air is injected into the skin or body seek medical help immediately.
BREATHING COMPRESSED AIR can injure or kill.
Do not use compressed air for breathing.
Use only for cutting, gouging, and tools.
MOVING PARTS can injure.
Keep away from fans, belts and rotors.
Keep all doors, panels, covers, and guards
closed and securely in place.
Keep hands, hair, loose clothing, and tools away from moving
parts.
Before working on compressed air system, turn off and lockout/
tagout unit, release pressure, and be sure air pressure cannot be
accidentally applied.
Have only qualified people remove guards or covers for maintenance and troubleshooting as necessary.
Reinstall doors, panels, covers, or guards when servicing is
finished and before starting engine.
TRAPPED AIR PRESSURE AND WHIPPING
HOSES can injure.
Release air pressure from tools and system before servicing, adding or changing attachments, or opening compressor oil drain or oil fill
cap.
HOT PARTS can cause severe burns.
Do not touch hot compressor or air system
parts.
Let system cool down before touching or servicing.
To handle hot parts, use proper tools and/or wear heavy, insulated welding gloves and clothing to prevent burns.
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.
READ INSTRUCTIONS.
Read Owner’s Manual before installing, operating, or servicing unit.
Use only genuine replacement parts from the
manufacturer.
Perform maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
1-6. Additional Symbols For Installation, Operation, And Maintenance
FIRE OR EXPLOSION hazard.
Do not install or place unit on, over, or near
combustible surfaces.
Do not install unit near flammables.
Do not overload building wiring − be sure power supply system is
properly sized, rated, and protected to handle this unit.
FALLING UNIT can cause injury.
Use lifting eye to lift unit and properly installed
accessories only, NOT gas cylinders. 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
stopping 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.
MOVING PARTS can cause injury.
Keep away from moving parts.
Keep away from pinch points such as drive
rolls.
WELDING WIRE can cause injury.
Do not press gun trigger until instructed to do
so.
Do not point gun toward any part of the body,
other people, or any metal when threading
welding wire.
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
according to instructions supplied with trailer.
READ INSTRUCTIONS.
Read Owner’s Manual before using or servicing unit.
Use only genuine replacement parts from the
manufacturer.
Perform maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
OM-4434 Page 5
H.F. RADIATION can cause interference.
High-frequency (H.F.) can interfere with radio
navigation, 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.
ARC WELDING can cause interference.
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
electromagnetically 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.
1-7. 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.
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.
1-8. 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, 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, 4221 Walney Road, 5th Floor,
Chantilly, VA 20151 (phone: 703-788-2700, website:www.cganet.com).
Code for Safety in Welding and Cutting, CSA Standard W117.2, from
Canadian Standards Association, Standards Sales, 5060 Mississauga,
Ontario, Canada L4W 5NS (phone: 800-463-6727 or in Toronto
416-747-4044, website: www.csa-international.org).
Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, from American National Standards Institute,
25 West 43rd 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, Quincy, MA 02269-9101 (phone: 617-770-3000, website: www.nfpa.org.
For Standards about hydraulic systems, contact the National Fluid
Power Association, Publications Department, 3333 North Mayfair
Road, Suite 211, Milwaukee, WI 53222-3219 (phone: (414) 778-3344,
website: www.nfpa.com).
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 15250-7954
(phone: 1-866-512-1800) (there are 10 Regional Offices—phone for
Region 5, Chicago, is 312-353-2220, website: www.osha.gov).
1-9. 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.
To reduce magnetic fields in the workplace, use the following
procedures:
OM-4434 Page 6
1. Keep cables close together by twisting or taping them, or using a
cable cover.
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 Implanted Medical Devices:
Implanted Medical Device wearers should consult their doctor and the
device manufacturer before performing or going near arc welding, spot
welding, gouging, plasma arc cutting, or induction heating operations.
If cleared by your doctor, then following the above procedures is recommended.
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT
UTILISATION
rom_2008−08fre
Se protéger, ainsi que toute autre personne travaillant sur les lieux, contre les étincelles et le métal chaud.
2-1. Signification des symboles
DANGER! − Indique une situation dangereuse qui si on
l’évite pas peut donner la mort ou des blessures graves.
Les dangers possibles sont montrés par les symboles
joints ou sont expliqués dans le texte.
Indique une situation dangereuse qui si on l’évite pas
peut donner la mort ou des blessures graves. Les dangers possibles sont montrés par les symboles joints ou
sont expliqués dans le texte.
NOTE − Indique des déclarations pas en relation avec des blessures
personnelles.
Indique des instructions spécifiques.
Ce groupe de symboles veut dire Avertissement! Attention! DANGER
DE CHOC ELECTRIQUE, PIECES EN MOUVEMENT, et PIECES
CHAUDES. Consulter les symboles et les instructions ci-dessous y
afférant pour les actions nécessaires afin d’éviter le danger.
2-2. Dangers relatifs au soudage à l’arc
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 2-8. 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
particulièrement 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 l’appareil sont également sous tension à ce moment-là.
En soudage semi-automatique ou automatique, le fil, le dévidoir, le
logement des galets d’entraînement et les pièces métalliques en
contact avec le fil de soudage sont sous tension. Des matériels mal
installés ou mal mis à la terre présentent un danger.
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 isolants 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 humides, 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 environnements 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.
Les câbles doivent être exempts d’humidité, d’huile et de graisse;
protégez−les contre les étincelles et les pièces métalliques chaudes.
Vérifier fréquemment le cordon d’alimentation pour voir s’il n’est
pas endommagé ou dénudé − remplacer le cordon immédiatement
s’il est endommagé − un câble dénudé peut provoquer une électrocution.
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.
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 métalmétal 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 comme indiqué dans la Section Maintenance avant de
toucher des composants.
OM-4434 Page 7
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.
Ne pas toucher aux pièces chaudes, utiliser les outils recommandés et porter des gants de soudage et des vêtements épais pour
éviter les brûlures.
DES PIECES DE METAL ou DES
SALETES peuvent provoquer
des blessures dans les yeux.
Le soudage, l’écaillement, le passage de la pièce à la brosse en
fil de fer, et le meulage génèrent des étincelles et des particules
métalliques volantes. Pendant la période de refroidissement des
soudures, elles risquent de projeter du laitier.
Porter des lunettes de sécurité avec écrans latéraux ou un écran
facial.
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 casque.
Avoir recours à des écrans protecteurs ou à des rideaux pour
protéger les autres 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 ignifuges (cuir, coton lourd ou laine) et des bottes de
protection.
LE SOUDAGE peut provoquer un
incendie ou une explosion.
Le soudage effectué sur des conteneurs fermés tels
que des réservoirs, tambours ou des conduites peut
provoquer leur éclatement. Des étincelles peuvent
être projetées de l’arc de 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.
LES FUMÉES ET LES GAZ peuvent être dangereux.
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.
Le soudage génère des fumées et des gaz. Leur
inhalation peut être dangereux pour votre santé.
Ne pas souder dans un endroit là où des étincelles peuvent tomber
sur des substances inflammables.
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.
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 déclencher un incendie de l’autre côté.
Ne pas effectuer le soudage sur des conteneurs fermés tels que
des réservoirs, tambours, ou conduites, à moins qu’ils n’aient été
préparés correctement conformément à AWS F4.1 (voir les normes de sécurité).
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 soudez pas si l’air ambiant est chargé de particules, gaz, ou vapeurs inflammables (vapeur d’essence, par exemple).
Ne pas souder dans des endroits situés à proximité d’opérations
de dégraissage, de nettoyage ou de pulvérisation. La chaleur et
les rayons de l’arc peuvent réagir en présence de vapeurs et former des gaz hautement toxiques et irritants.
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 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.
Ne pas utiliser le poste de soudage pour dégeler des conduites gelées.
LES ACCUMULATIONS DE GAZ risquent de provoquer des blessures ou
même la mort.
Fermer l’alimentation du gaz protecteur en cas
de non utilisation.
Veiller toujours à bien aérer les espaces confinés ou se servir
d’un respirateur d’adduction d’air homologué.
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 rayons visibles et invisibles intenses
(ultraviolets et infrarouges) susceptibles de provoquer des brûlures
dans les yeux et sur la peau. Des étincelles sont projetées pendant le
soudage.
OM-4434 Page 8
En cas de non utilisation, enlever la baguette d’électrode du porteélectrode 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.
Une fois le travail achevé, assurez−vous qu’il ne reste aucune trace d’étincelles incandescentes ni de flammes.
Utiliser exclusivement des fusibles ou coupe−circuits appropriés.
Ne pas augmenter leur puissance; ne pas les ponter.
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.
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 niveau sonore est trop élevé.
LES CHAMPS MAGNETIQUES peuvent
affecter des implants médicaux.
Porteur de simulateur cardiaque ou autre implants médicaux, rester à distance.
Les porteurs d’implants doivent d’abord consulter leur médecin
avant de s’approcher des opérations de soudage à l’arc, de soudage par points, de gougeage, du coupage plasma ou de chauffage par induction.
Si des BOUTEILLES sont endommagées, elles pourront exploser.
Des bouteilles de gaz protecteur contiennent du gaz
sous haute pression. Si une bouteille est endommagée, elle peut exploser. Du fait que les bouteilles de gaz 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 électriques.
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 raccords 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 caoutchouc 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 véhicules 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 ou de faire le plein.
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.
Toujours garder le pistolet en contact avec le réservoir lors du
remplissage.
Les PIÈCES MOBILES peuvent causer
des blessures.
Ne pas approcher les mains des ventilateurs,
courroies et autres pièces en mouvement.
Ne pas approcher les mains, cheveux, vêtements lâches et outils
des organes mobiles.
Remettre en place les portes, panneaux, recouvrements ou
dispositifs de protection à la fin des travaux d’entretien et avant de
mettre le moteur en marche.
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.
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.
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.
Ne pas toucher aux pièces chaudes, utiliser les outils recommandés et porter des gants de soudage et des vêtements épais pour
éviter les brûlures.
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.
Lorsque cela est nécessaire pour des travaux d’entretien et
de dépannage, faire retirer les portes, panneaux, recouvrements
ou dispositifs de protection uniquement par du personnel qualifié.
Toujours vérifier le niveau de liquide de refroidissement dans le
vase d’expansion (si présent), et non dans le radiateur (sauf si précisé autrement dans la section maintenance du manuel du
moteur).
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.
Pour empêcher tout démarrage accidentel pendant les travaux
d’entretien, débrancher le câble négatif (−) de batterie de la borne.
Dévisser le bouchon légèrement et laisser la vapeur s’échapper
avant d’enlever le bouchon.
Maintenir fermés et verrouillés les portes,
recouvrements et dispositifs de protection.
panneaux,
Arrêter le moteur avant d’installer ou brancher l’appareil.
OM-4434 Page 9
L’utilisation d’un groupe autonome
à l’intérieur PEUT VOUS TUER EN
QUELQUES MINUTES.
Les fumées d’un groupe autonome contient du
monoxyde de carbone. C’est un poison invisible et inodore.
JAMAIS utiliser dans une maison ou garage,
même avec les portes et fenêtres ouvertes.
Uniquement utiliser à l’EXTERIEUR, loin des portes, fenêtres et
bouches aération.
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.
LA CHALEUR DU MOTEUR peut provoquer un incendie.
Ne pas placer l’appareil sur, au-dessus ou à
proximité de surfaces inflammables.
Tenir à distance les produits inflammables de l’échappement.
2-4. Dangers liés à l’hydraulique
Les ÉQUIPEMENTS HYDRAULIQUES
peuvent provoquer des blessures ou
même la mort.
Pour intervenir sur un circuit hydraulique, porter un équipement
de protection tel que des lunettes de sécurité, des gants de cuir,
une chemise et un pantalon en tissu résistant, des chaussures
montantes et une coiffe.
Une installation ou une utilisation incorrecte
de cet appareil pourrait conduire à des dégâts
matériels ou corporels. Seul un personnel qualifié
est autorisé à installer, faire fonctionner et réparer
cet appareil conformément à son manuel
d’utilisation, aux normes industrielles et aux
codes nationaux, d’état ou locaux.
Pour rechercher des fuites, utiliser un morceau de papier ou
de carton, jamais les mains nues. En cas de détection de fuite,
ne pas utiliser l’équipement.
Ne pas dépasser le débit nominal ou la capacité de la pompe
hydraulique ou de tout équipement du circuit hydraulique.
Concevoir le circuit hydraulique de telle sorte que la défaillance
d’un composant hydraulique ne risque pas de provoquer
un accident matériel ou corporel.
Avant d’intervenir sur le circuit hydraulique, couper l’alimentation
électrique, verrouiller et étiqueter l’appareil, détendre la pression
et s’assurer que le circuit hydraulique ne peut être remis sous
pression par inadvertance.
Ne pas intervenir sur le circuit hydraulique lorsque l’appareil
fonctionne. Seul un personnel qualifié et appliquant les consignes
du fabricant est autorisé le faire.
Ne pas modifier ou altérer la pompe hydraulique ou
les équipements fournis par le fabricant. Ne pas débrancher,
désactiver ou neutraliser les équipements de sécurité du circuit
hydraulique.
Le LIQUIDE HYDRAULIQUE est INFLAMMABLE. Ne pas
intervenir sur des composants hydrauliques à proximité
d’étincelles ou de flammes; ne pas fumer à proximité de liquide
hydraulique.
Remettre les portes, panneaux, recouvrements ou dispositifs
de protection quand l’entretien est terminé et avant de mettre
en marche l’appareil.
En cas de pénétration d’un QUELCONQUE liquide dans la peau,
celui−ci doit être retiré chirurgicalement sous quelques heures par
un médecin familiarisé avec ce type de blessure, faute de quoi
la gangrène pourrait apparaître.
Les PIÈCES MOBILES peuvent causer
des blessures.
Rester à l’écart des ventilateurs, courroies
et rotors.
Maintenir fermés et verrouillés les portes,
panneaux, recouvrements et dispositifs
de protection.
Utiliser uniquement des composants et accessoires homologués
par le fabricant.
Ne pas approcher les mains, cheveux, vêtements lâches et outils
des organes mobiles.
Se tenir à l’écart de tout point présentant un danger de pincement
ou d’écrasement créé par l’équipement raccordé au circuit
hydraulique.
Avant d’intervenir sur le circuit hydraulique, couper l’alimentation
électrique, verrouiller et étiqueter l’appareil, détendre la pression
et s’assurer que le circuit hydraulique ne peut être remis sous
pression par inadvertance.
Ne pas intervenir sous ou autour d’un équipement qui n’est
soutenu que par la pression hydraulique. Soutenir l’équipement
de façon appropriée par un moyen mécanique.
Le LIQUIDE HYDRAULIQUE risque de
provoquer des blessures ou même la mort.
Avant d’intervenir sur le circuit hydraulique,
couper l’alimentation électrique, verrouiller
et étiqueter l’appareil, détendre la pression
et s’assurer que le circuit hydraulique ne peut
être remis sous pression par inadvertance.
Détendre la pression avant de débrancher ou
de brancher des canalisations hydrauliques.
Avant
d’utiliser
l’appareil,
contrôler
les composants du circuit hydraulique,
les branchements et les flexibles en recherchant
tout signe de détérioration, de fuite et d’usure.
OM-4434 Page 10
Demander seulement à un personnel qualifié d’enlever
les dispositifs de sécurité ou les recouvrements pour effectuer,
s’il y a lieu, des travaux d’entretien et de dépannage.
Remettre en place les portes, panneaux, recouvrements ou
dispositifs de protection à la fin des travaux d’entretien et avant
de mettre le moteur en marche.
Les PIÈCES ET LIQUIDES CHAUDS peuvent
provoquer des brûlures graves.
Ne pas toucher les pièces chaudes à main nue
ni laisser des liquides chauds entrer en contact
avec la peau.
Prévoir une période de refroidissement avant d’intervenir
sur l’équipement.
Ne pas toucher aux pièces chaudes, utiliser les outils
recommandés et porter des gants de soudage et des vêtements
épais pour éviter les brûlures.
LIRE LES INSTRUCTIONS.
Lire le manuel d’utilisation avant d’installer,
d’utiliser ou d’intervenir sur l’appareil.
N’utiliser que les pièces de rechange
recommandées par le constructeur.
Effectuer l’entretien en respectant les manuels d’utilisation,
les normes industrielles et les codes nationaux, d’état et locaux.
2-5. Dangers liés à l’air comprimé
Un ÉQUIPEMENT PNEUMATIQUE risque
de provoquer des blessures ou même
la mort.
Pour rechercher des fuites, utiliser de l’eau savonneuse ou
un détecteur à ultrasons, jamais les mains nues. En cas
de détection de fuite, ne pas utiliser l’équipement.
Une installation ou une utilisation incorrecte de
cet appareil pourrait conduire à des dégâts
matériels ou corporels. Seul un personnel
qualifié est autorisé à installer, utiliser et
entretenir cet appareil conformément à son
manuel d’utilisation, aux normes industrielles et
aux codes nationaux, d’état ou locaux.
En cas d’injection d’air dans la peau ou le corps, demander
immédiatement une assistance médicale.
Ne pas dépasser le débit nominal ou la capacité du compresseur
ou de tout équipement du circuit d’air comprimé. Concevoir
le circuit d’air comprimé de telle sorte que la défaillance
d’un composant ne risque pas de provoquer un accident
matériel ou corporel.
Avant d’intervenir sur le circuit d’air comprimé, couper
l’alimentation électrique, verrouiller et étiqueter l’appareil,
détendre la pression et s’assurer que le circuit d’air ne peut être
mis sous pression par inadvertance.
Ne pas intervenir sur le circuit d’air comprimé lorsque l’appareil
fonctionne. Seul un personnel qualifié est autorisé, et appliquant
les consignes du fabricant.
Ne pas modifier ou altérer le compresseur ou les équipements
fournis par le fabricant. Ne pas débrancher, désactiver ou
neutraliser les équipements de sécurité du circuit d’air
comprimé.
Utiliser uniquement des composants et accessoires
homologués par le fabricant.
Se tenir à l’écart de tout point présentant un danger de pincement
ou d’écrasement créé par l’équipement raccordé au circuit d’air
comprimé.
Ne pas intervenir sous ou autour d’un équipement qui n’est
soutenu que par la pression pneumatique. Soutenir l’équipement
de façon appropriée par un moyen mécanique.
Remettre les portes, panneaux, recouvrements ou dispositifs
de protection quand l’entretien est terminé et avant de mettre
en marche l’appareil.
L’INHALATION D’AIR COMPRIMÉ risque
de provoquer des blessures ou même
la mort.
Ne pas inhaler d’air comprimé.
Utiliser l’air comprimé uniquement pour
découper ou gouger ainsi que pour l’outillage
pneumatique.
Les PIÈCES MOBILES peuvent causer
des blessures.
Rester à l’écart des ventilateurs, courroies
et rotors.
Maintenir fermés et verrouillés les portes,
panneaux, recouvrements et dispositifs
de protection.
Ne pas approcher les mains, cheveux, vêtements lâches et outils
des organes mobiles.
Avant d’intervenir sur le circuit d’air comprimé, couper
l’alimentation électrique, verrouiller et étiqueter l’appareil,
détendre la pression et s’assurer que le circuit d’air ne peut être
mis sous pression par inadvertance.
Demander seulement à un personnel qualifié d’enlever
les dispositifs de sécurité ou les recouvrements pour effectuer,
s’il y a lieu, des travaux d’entretien et de dépannage.
Remettre en place les portes, panneaux, recouvrements ou
dispositifs de protection à la fin des travaux d’entretien et avant
de mettre le moteur en marche.
L’AIR COMPRIMÉ risque de provoquer
des blessures ou même la mort.
Avant d’intervenir sur le circuit d’air comprimé,
couper l’alimentation électrique, verrouiller
et étiqueter l’appareil, détendre la pression
et s’assurer que le circuit d’air ne peut être mis
sous pression par inadvertance.
Détendre la pression avant de débrancher ou
de brancher des canalisations d’air.
Avant
d’utiliser
l’appareil,
contrôler
les composants du circuit d’air comprimé,
les branchements et les flexibles en recherchant
tout signe de détérioration, de fuite et d’usure.
Ne pas diriger un jet d’air vers soi−même ou vers autrui.
Pour intervenir sur un circuit d’air comprimé, porter un équipement
de protection tel que des lunettes de sécurité, des gants de cuir,
une chemise et un pantalon en tissu résistant, des chaussures
montantes et une coiffe.
Une PRESSION D’AIR RÉSIDUELLE
ET DES FLEXIBLES QUI FOUETTENT
risquent de provoquer des blessures.
Détendre la pression pneumatique des outils et
circuits avant d’entretenir, ajouter ou changer
des accessoires et avant d’ouvrir le bouchon
de vidange ou de remplissage d’huile
du compresseur.
DES PIÈCES CHAUDES peuvent
provoquer des brûlures graves.
Ne pas toucher de pièces chaudes
du compresseur ou du circuit d’air.
Laisser refroidir le circuit avant de toucher
ou entretenir des pièces.
Ne pas toucher aux pièces chaudes, utiliser les outils
recommandés et porter des gants de soudage et
des vêtements épais pour éviter les brûlures.
OM-4434 Page 11
Le MÉTAL CHAUD provenant du
découpage ou du gougeage à l’arc risque
de provoquer un incendie ou une explosion.
Ne pas découper ou gouger à proximité
de produits inflammables.
Attention aux risques d’incendie: tenir un extincteur à proximité.
LIRE LES INSTRUCTIONS.
Lire le manuel d’utilisation avant d’installer,
d’utiliser ou d’intervenir sur l’appareil.
N’utiliser que les pièces de rechange
recommandées par le constructeur.
Effectuer l’entretien en respectant les manuels d’utilisation,
les normes industrielles et les codes nationaux, d’état et locaux.
2-6. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance
Risque D’INCENDIE OU D’EXPLOSION.
Ne pas placer l’appareil sur, au-dessus ou
à proximité de surfaces inflammables.
Ne pas installer l’appareil à proximité de produits inflammables.
Ne pas surcharger l’installation électrique − s’assurer que l’alimentation est correctement dimensionnée et protégée avant de
mettre l’appareil en service.
LA CHUTE DE L’APPAREIL peut blesser.
Utiliser l’anneau de levage pour lever l’appareil
et les accessoires correctement installées
seuls, PAS les bouteilles de gaz. 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 d’arrêter le moteur.
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.
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 protecteurs. 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 inflammable.
DES ORGANES MOBILES peuvent
provoquer des blessures.
Ne pas s’approcher des organes mobiles.
Ne pas s’approcher des points de coincement
tels que des rouleaux de commande.
OM-4434 Page 12
LES FILS DE SOUDAGE peuvent
provoquer des blessures.
Ne pas appuyer sur la gâchette avant d’en
avoir reçu l’instruction.
Ne pas diriger le pistolet vers soi, d’autres personnes ou toute pièce mécanique en engageant le fil de soudage.
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.
Utiliser des pochettes et des boîtes antistatiques pour stocker,
déplacer ou expédier des cartes de circuits imprimes.
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 comme indiqué dans le manuel s’y rapportant.
LIRE LES INSTRUCTIONS.
Lisez le manuel d’instructions avant l’utilisation
ou la maintenance de l’appareil.
N’utiliser que les pièces de rechange recommandées par le constructeur.
Effectuer l’entretien en respectant les manuels d’utilisation,
les normes industrielles et les codes nationaux, d’état et locaux.
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 sécurité et les ordinateurs.
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 qualifié 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.
LE SOUDAGE À L’ARC risque de
provoquer des interférences.
L’énergie électromagnétique risque de provoquer des interférences pour l’équipement électronique sensible tel que les ordinateurs et
l’équipement commandé par ordinateur tel que
les robots.
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
soudage 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 électronique sensible.
Veiller à ce que ce poste de soudage soit posé et mis à la terre
conformément à ce mode d’emploi.
En cas d’interférences après avoir pris les mesures précédentes, il incombe 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.
2-7. Proposition californienne 65 Avertissements
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.
Pour les moteurs à essence :
Les gaz d’échappement des moteurs contiennent des produits chimiques 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 composants sont reconnus par l’État de Californie comme provoquant des cancers et des malformations
congénitales ou autres problèmes de procréation.
2-8. 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, 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, 4221 Walney Road, 5th Floor, Chantilly, VA 20151 (téléphone : 703-788-2700, site Internet :
www.cganet.com).
Code for Safety in Welding and Cutting, CSA Standard W117.2, de
Canadian Standards Association, 5060 Mississauga, Ontario, Canada
L4W 5NS (téléphone : 800-463-6727 ou à Toronto 416-747-4044, site
Internet : www.csa-international.org).
Safe Practice For Occupational And Educational Eye And Face Protection, ANSI Standard Z87.1, de American National Standards Institute,
11 West 43rd 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, Quincy, MA 02269-9101 (téléphone : 617-770-3000,
site Internet : www.nfpa.org).
Pour les normes relatives aux circuits hydrauliques, contacter: National
Fluid Power Association, Publications Department, 3333 North Mayfair
Road, Suite 211, Milwaukee, WI 53222−3219 (tél.: (414) 778−3344,
site web: www.nfpa.com).
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 15250-7954
(téléphone : 1-866-512-1800) (il y a 10 bureaux régionaux−−le téléphone de la région 5, Chicago, est 312-353-2220, site Internet :
www.osha.gov).
OM-4434 Page 13
2-9. Information EMF
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 procédures suivantes :
OM-4434 Page 14
1. Garder les câbles ensemble, les torsader, les scotcher, ou les
recouvrir d’une housse.
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 implants médicaux :
Les porteurs d’implants doivent d’abord consulter leur médecin avant
de s’approcher des opérations de soudage à l’arc, de soudage par
points, de gougeage, du coupage plasma ou de chauffage par induction. Si le médecin approuve, il est recommandé de suivre les
procédures précédentes.
A complete Parts List is available at www.MillerWelds.com
SECTION 3 − DEFINITIONS
3-1. Symbol Definitions
h
Stop Engine
Fast
(Run, Weld/Power)
Start Engine
Read Operator’s
Manual
Engine Oil
Fuel
Battery (Engine)
Engine
Engine Choke
Check Valve
Clearance
Do not switch while
welding
Work Connection
Positive
Negative
Alternating Current
(AC)
Output
Welding Arc
(Electrode)
MIG (GMAW),
Wire
Stick (SMAW)
TIG (GTAW)
Seconds
Time
Protective Earth
(Ground)
Hours
s
Circuit Protector
Fast/Slow
(Run/Idle)
A
Amperes
Slow (Idle)
V
Volts
Temperature
SECTION 4 − SPECIFICATIONS
4-1. Weld, Power, and Engine Specifications
This unit uses either a Subaru EH-65 or a Kohler CH-23 engine. Differences between models are noted throughout this manual.
Welding
Mode
Weld Output
Range
Rated
Welding
Output
Maximum
Open Circuit
Voltage
CC/AC
50 − 225 A
225 A, 25 V,
100% Duty
Cycle
80
CC/DC
50 − 210 A
210 A, 25 V,
100% Duty
Cycle
80
200 A, 20 V,
100% Duty
Cycle
33
CV/DC
19 − 28 V
Generator Power Rating
Subaru EH−65
Peak: 11.0 kVA/kW
Continuous: 9.5 kVA/kW
Single-Phase
92/46 A, 120/240 V AC,
60 Hz (while not welding)
Kohler CH−23
Peak: 10.5 kVA/kW
Continuous: 9.5 kVA/kW,
Single-Phase,
88/44 A, 120/240 V AC,
60 Hz (while not welding)
Fuel
Capacity
12 gal
(45 L) Tank
Engine
Subaru EH-65
Air-Cooled, Two-Cylinder,
Four-Cycle, 23 HP
Gasoline Engine
or
Kohler CH-23
Air-Cooled, Two-Cylinder,
Four-Cycle, 23 HP
Gasoline Engine
OM-4434 Page 15
A complete Parts List is available at www.MillerWelds.com
4-2. Dimensions, Weights, And Operating Angles
20°
!
Do not exceed tilt angles or
engine could be damaged or
unit could tip.
!
Do not move or operate unit
where it could tip.
Weight: 562 lb (254 kg)
20°
20°
Lifting Eye Weight Rating: 1280
lb (580 kg)
35.232
20°
Support Assembly Dimensions
1. 500
. 105
6. 750
16. 500
32. 750
LOCATE REAR CROSS
SUPPORT UNDER ENGI NE
LOCATE FRONT CROSS SUPPORT
APPROXI MATELY 1” BEHI ND
MOUNTI NG HOLES
5. 750
MIMIMUM GAGE − 12
MINIMUM WIDTH − 3’
5. 250
2. 000
803 572 / Ref 232 769 / 240 844-A
OM-4434 Page 16
A complete Parts List is available at www.MillerWelds.com
4-3. Dimensions For Units With Optional Running Gear
Dimensions
Height
All Running Gear Options:
42-1/2 in (1079 mm)
(To Top Of Handle
Assembly)
C
A
Protective Cage Width:
26 in (660 mm)
B
Running Gear Width:
32 in (813 mm)
C
Protective Cage Length:
48 in (1219 mm)
D
Running Gear Length:
45−1/2 in (1156 mm)
D
A
B
B
4-4. Duty Cycle
Duty cycle is the percentage of 10
minutes that unit can weld at rated
load without overheating.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
Continuous Welding
100% Duty Cycle at 225 Amperes CC/AC, 210 Amperes CC/DC, 200 Amperes CV/DC
119 454-A
OM-4434 Page 17
A complete Parts List is available at www.MillerWelds.com
4-5. Fuel Consumption (Subaru-Powered Units)
On a typical job using 1/8 in 7018
electrodes (125 amps, 20% duty
cycle), expect about 20 hours of operation.
Welding at 150 amps at 40% duty
cycle uses approximately 3/4 gallon per hour, or about 16 hours of
operation.
220 571
4-6. Fuel Consumption (Kohler-Powered Units)
On a typical job using 1/8 in 7018
electrodes (125 amps, 20% duty
cycle), expect about 20 hours of operation.
Welding at 150 amps at 40% duty
cycle uses approximately 3/4 gallon per hour, or about 16 hours of
operation.
179 939
OM-4434 Page 18
A complete Parts List is available at www.MillerWelds.com
4-7. Volt-Ampere Curves
A. For CC/AC Mode
The volt-ampere curve shows the
minimum and maximum voltage
and amperage output capabilities of
the welding generator. Curves of all
other settings fall between the
curves shown.
B. For CC/DC Mode
C. For CV/DC Mode
166 024-A / 166 025-A / 166 026-A
OM-4434 Page 19
A complete Parts List is available at www.MillerWelds.com
4-8. Generator Power Curve
The generator power curve shows
the generator power in amperes
available at the receptacles.
200 294
Notes
WELD POSITION: FLAT
WELD JOINT
TYPES
HORIZONTAL
BUTT
1G
VERTICAL
BUTT
2G
FILLET
Ref. AWS/ANSI D1.1
OM-4434 Page 20
T−JOINT
1F
BUTT
4G
BUTT
3G
T−JOINT
2F
GROOVE
OVERHEAD
T−JOINT
4F
T−JOINT
3F
Ref. 804 248-A
A complete Parts List is available at www.MillerWelds.com
SECTION 5 − INSTALLATION
5-1. Installing Welding Generator
Movement
OR
!
Do not move or operate unit
where it could tip.
!
Do not lift unit from end.
!
Do not weld on base. Welding
on base can cause fuel tank fire
or explosion. Bolt unit down
using holes provided in base.
!
Always securely fasten welding generator onto transport
vehicle or trailer and comply
with all DOT and other applicable codes.
Location / Airflow Clearance
NOTICE − Do not install unit where air
flow is restricted or engine may overheat.
OR
OR
See Section 4-2 for lifting eye rating.
Mounting:
18 in
(460 mm)
18 in
(460 mm)
18 in
(460 mm)
!
Do not mount unit by supporting the base only at the four
mounting holes. Do not use
flexible mounts. Use crosssupports to adequately support unit and prevent damage
to base.
6
Cross-Supports
18 in
(460 mm)
Mount unit on flat surface or use
cross-supports to support base, see
Section 4-2.
18 in
(460 mm)
Mounting
1
install2 2008-01 − Ref. 800 652 / Ref. 800 477-A / 803 274-A / 804 712
OM-4434 Page 21
A complete Parts List is available at www.MillerWelds.com
5-2. Grounding Generator To Truck Or Trailer Frame
1
!
Always ground generator
frame to vehicle frame to prevent electric shock and static
electricity hazards.
!
Also see AWS Safety &
Health Fact Sheet No. 29,
Grounding of Portable And
Vehicle Mounted Welding
Generators.
!
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.
!
If unit does not have GFCI receptacles, use GFCI-protected extension cord.
1
Equipment Grounding
Terminal (On Front Panel)
Grounding Cable (Not
Supplied)
Metal Vehicle Frame
2
GND/PE
2
3
3
Connect cable from equipment
ground terminal to metal vehicle
frame. Use #10 AWG or larger
insulated copper wire.
Electrically
bond generator
frame to vehicle frame by metal-to-metal contact.
rot_grnd 2008-01 − 800 652-D
5-3. Rating Label Location
4
1
Rating Label − Typical
Locate rating label on unit. Label provides information such as weld output
ratings, generator ratings, and engine
information.
rot_label2 2008-02 − 804 712
OM-4434 Page 22
A complete Parts List is available at www.MillerWelds.com
5-4. Engine Prestart Checks (Subaru-Powered Units)
Check all fluids daily. Engine must
be cold and on a level surface. Unit
is shipped with 10W30 engine oil.
Follow run-in procedure in engine manual.
Oil Fill
Oil Check
Full
NOTICE − This unit has a low oil
pressure shutdown switch. However, some conditions may cause engine damage before the engine
shuts down. Check oil level often
and do not use the oil pressure
shutdown system to monitor oil
level.
Fuel
To help prime the fuel system at initial start-up, fill tank with fresh fuel
(see maintenance label for specifications). Always leave filler neck
empty to allow room for expansion.
Check fuel level on a cold engine
before use each day.
Oil
Do not
exceed the ”Full” mark
on the oil level dipstick. The
fuel pump may operate erratically if crankcase is overfilled.
Full
After fueling, check oil with unit on
level surface. If oil is not up to full
mark on dipstick, add oil (see maintenance label).
Gasoline
To
improve
starting:
cold
weather
Keep battery in good condition.
Store battery in warm area.
Use correct grade oil for cold
weather.
1/2
0
1
H
0000
803 755-E / 217 015-A
OM-4434 Page 23
A complete Parts List is available at www.MillerWelds.com
5-5. Engine Prestart Checks (Kohler-Powered Units)
Check all fluids daily. Engine must
be cold and on a level surface. Unit
is shipped with 10W30 engine oil.
Follow run-in procedure in engine manual.
Full
Full
NOTICE − This unit has a low oil
pressure shutdown switch. However, some conditions may cause engine damage before the engine
shuts down. Check oil level often
and do not use the oil pressure
shutdown system to monitor oil
level.
Fuel
To help prime the fuel system at initial start-up, fill tank with fresh fuel
(see maintenance label for specifications). Always leave filler neck
empty to allow room for expansion.
Check fuel level on a cold engine
before use each day.
Gasoline
Oil
Do not
exceed the ”Full” mark
on the oil level dipstick. The
fuel pump may operate erratically if crankcase is overfilled.
After fueling, check oil with unit on
level surface. If oil is not up to full
mark on dipstick, add oil (see maintenance label).
To
improve
starting:
cold
weather
Keep battery in good condition.
Store battery in warm area.
Use correct grade oil for cold
weather.
1/2
0
1
H
0000
803 754-D / 217 015-A
OM-4434 Page 24
A complete Parts List is available at www.MillerWelds.com
5-6. Installing Exhaust Pipe
!
Engine backfire can cause severe burns or other injuries. Do
not point exhaust pipe toward
control panel. Keep away from
exhaust outlet.
!
Point exhaust pipe in desired direction but always away from
front panel and direction of travel.
Be sure to tighten exhaust clamp
nuts. Exhaust clamp supplied with
muffler.
Tools Needed:
1/2 in
803 751 / Ref. 240 947-A
5-7. Connecting Or Replacing the Battery
!
Connect negative (−) battery
cable last..
To connect battery, open right side engine access door.
1
Battery Holddown
To change battery, remove rear panel
with baffle and battery holddown.
Be sure battery cables are not pinched
when installing battery.
−
+
+
−
1
Tools Needed:
3/8, 1/2 in
803 754-D / 803 752-C / Ref. S-0756-D
OM-4434 Page 25
A complete Parts List is available at www.MillerWelds.com
5-8. Connecting To Weld Output Terminals
!
Stop engine.
!
Failure to properly connect
weld cables may cause excessive heat and start a fire, or
damage your machine.
Do not place anything between
1
2
3
4
5
6
7
weld cable terminal and copper bar. Make sure that the surfaces of the weld cable terminal and copper bar are clean.
Correct Weld Cable Installation
Incorrect Weld Cable
Installation
Weld Output Terminal
Supplied Weld Output Terminal
Nut
Weld Cable Terminal
Copper Bar
Remove supplied nut from weld output terminal. Slide weld cable terminal
onto weld output terminal and secure
with nut so that weld cable terminal is
tight against copper bar.
8
7
8
Work Weld Output Terminal
Electrode Weld Output Terminal
Connect work cable to Work terminal.
Connect electrode holder cable or
electrode weld cable to Electrode terminal for Stick and MIG welding.
Connect torch cable to Electrode terminal for TIG welding.
Use Process Selector switch to
select type of weld output (see
Section 6-1).
See Sections 6-3 thru 6-5 for typical process connections and
control settings.
1
2
3
Tools Needed:
3/4 in
6
4
5
803 750-B / Ref. 240 947-A / 803 778-B
OM-4434 Page 26
A complete Parts List is available at www.MillerWelds.com
5-9. Selecting Weld Cable Sizes*
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
Not Exceeding***
100 ft (30 m) or Less
!
!
Weld Output
Terminals
Turn off power before
connecting to weld
output terminals.
Do not use worn,
damaged, undersized, or poorly
spliced cables.
* This
150 ft
(45 m)
200 ft
(60 m)
250 ft
(70 m)
300 ft
(90 m)
350 ft
400 ft
(105 m) (120 m)
Welding
Amperes
10 − 60%
Duty
Cycle
60 − 100%
Duty
Cycle
100
4 (20)
4 (20)
4 (20)
3 (30)
2 (35)
1 (50)
1/0 (60)
1/0 (60)
150
3 (30)
3 (30)
2 (35)
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
3/0 (95)
200
3 (30)
2 (35)
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
4/0 (120)
250
2 (35)
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 2/0
(2x70)
300
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 3/0
(2x95)
350
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 3/0
(2x95)
2 ea. 4/0
(2x120)
400
1/0 (60)
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 4/0
(2x120)
2 ea. 4/0
(2x120)
500
2/0 (70)
3/0 (95)
4/0 (120)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 4/0
(2x120)
3 ea. 3/0
(3x95)
3 ea. 3/0
(3x95)
10 − 100% Duty Cycle
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 use
S-0007-F
***For distances longer than those shown in this guide, call a factory applications representative at 920-735-4505.
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.
OM-4434 Page 27
A complete Parts List is available at www.MillerWelds.com
SECTION 6 − OPERATING THE WELDING GENERATOR
6-1. Front Panel Controls
4
5
3
6
1
1
Engine Control Switch
Use switch to start engine, select speed, and
stop engine. In Run/Idle position, engine runs
at idle speed at no load, and weld/power speed
under load. In Run position, engine runs at
weld/power speed.
Place switch in Run position to operate
most MIG equipment.
2
Engine Choke Control
Use control to change engine air-fuel mix.
To Start: pull out choke and turn Engine Control switch to Start position. Release switch
and slowly push choke in when engine starts.
If the engine does not start, let engine
come to a complete stop before attempting restart.
To Stop: turn Engine Control switch to Off
position.
3
Engine Hour Meter/Idle Control
Hour Meter: With engine off, place Engine
Control switch in Run/Idle position to view engine hours.
OM-4434 Page 28
Oil Change Interval: With engine off, place Engine Control switch in the Run position to see
hours before next oil change. Oil hours start at
100 and count down to 0 (zero) (oil change
due).
Negative hours indicated when past recommended oil change interval.
To reset, cycle Engine Control switch from
Run/Idle to Run three times within five seconds (engine off).
4 Weld Process Selector Switch
NOTICE − Do not switch under load.
Use switch to select type of weld output.
Wire (GMAW) Welding: Use a positive (+)
position for Direct Current Electrode Positive
(DCEP) and a negative (−) position for Direct
Current Electrode Negative.
Stick (SMAW) and TIG (GTAW Welding): Use
a positive (+) position for Direct Current Electrode Positive (DCEP) and a negative (−) position for Direct Current Electrode Negative.
Use AC position for alternating current.
5 Coarse Range Switch
2
Ref. 240 947-A
NOTICE − Do not switch under load.
Use switch to select weld amperage range
when Weld Process Selector switch is in Stick/
Tig position, or voltage range when switch is in
Wire position.
For best arc starts and when using weld
6
and generator power together, use a low
Coarse Range setting with the Fine control set at 7 or higher.
Fine Control
Use control to select weld amperage (Stick/
Tig) or voltage (Wire) within the range selected
by the Coarse Range switch. Control may be
adjusted while welding.
Set control at 10 for maximum generator
power.
Weld output would be about 110 A DC based
on control settings shown (80% of 70 to 150
A). Settings shown are typical for welding with
a 7018 (1/8) electrode.
See Sections 6-3 thru 6-5 for typical process connections and control settings.
A complete Parts List is available at www.MillerWelds.com
6-2. Cold Weather Engine Operation
1
Engine Control Switch
Carburetor Icing
1
Infrequently
Loaded
Carburetor icing causes the unit to drop below the normal idle speed and then
stall. This condition occurs when the temperature is near freezing and the relative humidity is high. Ice forms on the throttle plate and inner bore of the carburetor. The engine typically restarts without problems but soon stalls again.
Treat gasoline with a fuel de−icer product (isopropyl alcohol).
Place the Engine Control switch in the Run position.
Run engine only when expecting to frequently load it.
Breather Icing
Frequently
Loaded
Oil breather/pulse line icing occurs in severe cold (continuously below 0F).
Moisture accumulates in the oil from piston ring blow−by if the engine is extensively idled. This may cause vacuum line freezing, oil breather tube freezing
or ice in the carburetor. All of these cause operating problems. Due to ice in
the lines, the engine may not restart until it is warmed to above freezing.
Load engine and reduce idle times to prevent engine shutdowns.
Use an electric fuel pump to avoid pulse line freezing.
Install engine cold−weather kit.
Both Kohler (1-800-544-2444) and Subaru (1-800-277-6246) offer kits for cold
weather operation. The user can install these kits. Both kits pull heated air from
the muffler surface into the carburetor and shut the cold air off. This increases
engine temperature during operation in both idle and high speed.
When the ambient temperatures become warmer (above 45_F) the air
flow will have to be returned to normal.
Ref. 240 947
Notes
http://www.millerwelds.com/service/replacementparts.html
Choose Genuine Select to review spare parts requirements such
as filters, spark plugs, and fuses.
Choose Service Parts to download complete parts listing.
OM-4434 Page 29
A complete Parts List is available at www.MillerWelds.com
6-3. Typical Stick Welding Connections And Control Settings
!
Stop engine.
This
section provides general
guidelines and may not suit all
applications.
For best arc starts and best
results using weld and generator
power together, use a low
Coarse Range setting and the
Fine control set at 7 or higher.
The control panel shows the typi-
1
2
cal settings for welding with a
7018 (1/8 in) electrode. Consult
the amperage selection tables
below if welding with other electrodes.
Work Clamp
Electrode Holder
Connect Work cable to Work terminal
and Electrode holder cable to Electrode terminal on welding generator.
Be sure to use the correct size
weld cables (see Section 5-9).
For best performance,
set the
Coarse Range switch to the lowest range that covers the desired
weld amperage. Use the Fine
control to select the desired amperage within the range selected. When properly set, the
Fine control is normally set at 7
or higher.
Typical Settings For 7018 (1/8 in)
Electrode:
6010
&
6011
6013
7014
7018
7024
Ni-Cl
308L
OM-4434 Page 30
AC
DC*
450
400
350
300
AMPERAGE
RANGE
250
200
150
100
ELECTRODE
3/32
1/8
5/32
3/16
7/32
1/4
1/16
5/64
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
3/32
1/8
5/32
50
DIAMETER
ELECTRODE
Electrode Selection Table (Beneath Cover)
>
Set Weld Process Selector
switch to + Stick position.
>
Set Coarse Range switch to
70-150 (1/8”) position.
>
Set Fine control at 7 or higher
for best results.
USAGE
2
PENETRATION
1
POSITION
Typical Settings For 7018 (1/8 in) Electrode
6010
EP
ALL
6011
EP
ALL
DEEP MIN. PREP, ROUGH
HIGH SPATTER
DEEP
6013
EP,EN
ALL
LOW
GENERAL
ALL
MED
ALL
LOW
SMOOTH, EASY,
FAST
LOW HYDROGEN,
STRONG
7014
EP,EN
7018
EP
7024
EP,EN
NI-CL
EP
FLAT
HORIZ
FILLET
ALL
308L
EP
ALL
LOW
SMOOTH, EASY,
FASTER
LOW
CAST IRON
LOW
STAINLESS
*EP = ELECTRODE POSITIVE (REVERSE POLARITY)
EN = ELECTRODE NEGATIVE (STRAIGHT POLARITY)
Tools Needed:
3/4 in
803 847-C / 240 947-A / 087 985-A / Ref. S-0653
A complete Parts List is available at www.MillerWelds.com
6-4. Typical MIG Welding Connections And Settings
A. Solid Wire Applications
!
Stop engine.
This section provides general guideTypical Control Settings For .035 (ER70S-3)
Solid Wire − Short Circuit Transfer
Note Coarse Range,
Fine Control, and
Weld Process switch
settings.
lines and may not suit all applications.
The control panel shows the typical
1
2
3
settings for welding with .035
(ER70S-3) solid wire. Use Argonbased shielding gas.
Work Clamp
Wire Feeder
MIG Gun
4
Gun Trigger Plug
5
Voltage Sensing Clamp
6
Gas Cylinder:
75/25 Argon-Based Gas for Short
Circuit Transfer
80% Argon (Or Higher) For Spray
Transfer
7
6
Gas Hose
Connect work cable to welding generator
Work terminal. Connect cable from wire
feeder to cable from welding generator
Electrode terminal.
7
Be sure to use the correct size weld
cables (see Section 5-9).
Loosen MIG gun securing knob. Insert
gun end through opening in feeder and
position as close as possible to drive rolls
without touching. Tighten knob.
See wire feeder manual for wire threading procedure.
Insert gun trigger plug (item 4) into
matching receptacle and tighten
threaded collar.
Connect gas hose from feeder to regulator on cylinder.
Typical Control Settings For Short
Circuit Transfer Using .035 (ER70S-3)
Solid Wire And 75/25 Argon-Based
Gas:
Quick connector
2
3
>
Set Weld Process Selector switch
to Wire + (DCEP) position.
>
Set Coarse Range switch to Wire
19-28 volts position.
>
Set Fine Control to obtain minimum
spatter.
>
Set wire feed speed between
150-300 ipm.
4
5
Work
1
Tools Needed:
3/4 in
803 847-C / 802 766 / 240 947-A
OM-4434 Page 31
A complete Parts List is available at www.MillerWelds.com
B. Self-Shielded Flux Core Wire Applications
!
Stop engine.
This
Typical Control Settings For .045 (71T-11) Self-Shielded Flux Core Wire
Note Coarse Range,
Fine Control, and
Weld Process switch
settings.
section provides general
guidelines and may not suit all
applications.
The control panel shows the typi1
2
3
cal settings for welding with .045
(71T-11) self-shielded flux core
wire.
Work Clamp
Wire Feeder
MIG Gun
4
Gun Trigger Plug
5
Voltage Sensing Clamp
Connect work cable to welding generator Work terminal. Connect cable
from wire feeder to cable from welding generator Electrode terminal.
Be sure to use the correct size
weld cables (see Section 5-9).
Loosen MIG gun securing knob. Insert gun end through opening in feeder and position as close as possible
to drive rolls without touching. Tighten knob.
See wire feeder manual for wire
threading procedure.
Insert gun trigger plug (item 4) into
matching receptacle and tighten
threaded collar.
Typical Control Settings Using
.045 (71T-11) Self-Shielded Flux
Core Wire :
Quick connector
2
3
>
Set Weld Process Selector
switch to Wire − position
(DCEN).
>
Set Coarse Range switch to
Wire 19-28 volts position.
>
Set Fine Control near minimum
setting.
>
Set wire feed speed between
125-200 ipm.
>
Do a test weld. To increase arc
length, increase Fine Control
setting. To shorten arc length,
reduce fine control setting or increase wire feed speed.
5
4
Work
1
Tools Needed:
3/4 in
OM-4434 Page 32
803 847-C / 802 766 / 240 947-A
A complete Parts List is available at www.MillerWelds.com
6-5. Typical MIG Connections And Settings Using Weld Control And Spoolgun
Typical
Settings For
4043 (.035) Aluminum On
1/8 in Material:
Note Coarse Range and Weld
Process switch settings.
Tools Needed:
3/4 in
10
9
8
Connect to unused
contactor terminal.
Work
12
5
Plug and sensing lead not
used in this application.
6
Left Side View
2
1
3
11
4
This section
provides general guidelines and may not suit all applications.
5
12 Input Power Cord
Be sure to use the correct size weld
cables (see Section 5-9).
1
Weld Control
2
3
Spoolgun
Optional Contactor (Recommended)
4
5
Reed Switch
Weld Cable (Customer-Supplied)
Route weld cable from welding generator
Electrode terminal through reed switch to
unused contactor terminal. Connect weld
cable from spoolgun to weld control weld terminal (item 6).
6
7
Weld Control Weld Terminal
Weld Power Cable From Spoolgun
Connect work cable to welding generator
Work terminal.
8
9
Work Clamp
Gas Hose
Insert trigger control plug (item 11) into weld
control receptacle. Tighten threaded collar.
10 Argon Cylinder
11 Trigger Control Cord
Connect ac power cord (item 12) to 120 volt
ac receptacle on welding generator.
6
7
802 847-C / 240 947-A
Connect gas hose from spoolgun to regulator on Argon bottle.
Reinstall weld control wrapper.
Typical Settings For 4043 (.035)
Aluminum On 1/8 in Material:
>
Set Weld Process Selector switch to
Wire + (DCEP) position.
>
Set Coarse Range switch to Wire
19-28 volts position.
>
Set Fine Control to desired voltage
(arc length). Start with a low voltage
setting (about 4) to prevent burnback.
>
Set wire feed speed between 240-270
ipm.
OM-4434 Page 33
A complete Parts List is available at www.MillerWelds.com
SECTION 7 − OPERATING AUXILIARY EQUIPMENT
7-1. Standard Receptacles
!
If unit does not have GFCI receptacles, use GFCI-protected
extension cord.
Generator power decreases as
1
weld current increases.
Set Fine Control R1 at 10 for full
generator power.
240 V 50 A AC Receptacle RC1
RC1 supplies 60 Hz single-phase
power at weld/power speed. Maximum output is 10.5 kVA/kW for
Kohler-powered models, 11 kVA/kW
for Subaru-powered models.
2
120 V 20 A AC Duplex Receptacle RC2
3
120 V 20 A AC Duplex Receptacle RC3
RC2 and RC3 supply 60 Hz singlephase power at weld/power speed.
Maximum output from RC2 or RC3 is
2.4 kVA/kW.
4
1
5
2
6
3
Supplementary Protector CB1
CB1 protects receptacles RC1, RC2,
and RC3 from overload. If CB1
opens, the receptacles do not work.
Place switch in On position to reset.
5
Supplementary Protector CB2
6
Supplementary Protector CB3
CB2 protects RC2 and CB3 protects
RC3 from overload. If a supplementary protector opens, the receptacle
does not work.
Press button to reset. If supplementary protector continues to
open,
contact
Factory
Authorized Service Agent.
Combined output of all receptacles
limited to the rating of the generator.
Kohler-powered model example: If
20 A is drawn from each 120 V duplex
receptacle, only 21 A is available at
the 240V receptacle:
2 x (120 V x 20 A) + (240 V x 24 A) =
10.5 kVA/kW
Subaru-powered model example: If
20 A is drawn from each 120 V duplex
receptacle, only 23 A is available at
the 240V receptacle:
4
2 x (120 V x 20 A) + (240 V x 26 A) =
11.0 kVA/kW
803 750-C / Ref. 240 947-A
OM-4434 Page 34
A complete Parts List is available at www.MillerWelds.com
7-2. Optional Generator Power Receptacles
!
If unit does not have GFCI receptacles, use GFCI-protected extension cord.
Generator power
decreases as weld
current increases.
1
Set Fine Control R1 at 10 for full generator power.
Combined output of all receptacles limited to
the rating of the generator. Maximum output
is 10.5 kVA/kW for Kohler-powered models,
11 kVA/kW for Subaru-powered models.
CSA/GFCI Receptacle Option
1
120 V 20 A AC GFCI Receptacles
GFCI-2 and GFCI-3
GFCI2 and GFCI3 supply 60 Hz singlephase power at weld/power speed. Maximum output from GFCI-2 or GFCI-3 is 2.4
kVA/kW. Circuit protection is the same as
standard receptacles.
If a ground fault is detected, the GFCI Reset
button pops out and the circuit opens to disconnect the faulty equipment. Check for
damaged tools, cords, plugs, etc. connected to the receptacle. Press button to reset receptacle and resume operation.
!
Power is still present at the 240 volt
receptacle when only one circuit
breaker trips.
Unplug power cord before attempting to service accessories or tools.
At least once a month, run engine at
weld/power speed and press Test button to verify GFCI is working properly.
Ref. 240 947-A
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.
OM-4434 Page 35
A complete Parts List is available at www.MillerWelds.com
7-3. Simultaneous Weld And Power
Weld Current in Amperes
Total Power in Watts
120 V Full kVA Receptacle
Amperes
250
2200
18
9
180
3500
29
14
125
5200
43
21
90
8000
66
33
10,500 (Kohler-powered models)
88
44
11,000 (Subaru-powered models)
92
46
0
240 V Full kVA Receptacle
Amperes
7-4. Wiring Optional 240 Volt Plug
The plug can be wired for a 240 V,
2-wire load or a 120/240V, 3-wire
load. See circuit diagram.
1
7
Current Available in Amperes
When wired for 120 V loads, each
duplex receptacle shares a load
with one half of 240 V receptacle.
240 V
Each 120 V Duplex
Receptacle*
Receptacle
0
5
10
15
20
25
30
35
40
20
20
20
20
20
15
10
5
0
V x A = Watts
Plug Wired for 120/240 V,
3-Wire Load
1
3
4
120V
2
Plug Wired for 240 V, 2-Wire
Load
3
Neutral (Silver) Terminal
4
Load 1 (Brass)Terminal
5
Load 2 (Brass) Terminal
6
Ground (Green) Terminal
7
Amperes Available using
120/240 V Plug
5
120V
240V
6
*One 240 V load or two 120 V loads.
Tools Needed:
2
3
4
240V
6
5
240 V
AC
120 V
AC
120 V
AC
plug1 11/03 − 120 813-D
OM-4434 Page 36
A complete Parts List is available at www.MillerWelds.com
SECTION 8 − MAINTENANCE (SUBARU-POWERED UNITS)
8-1. Maintenance Label (Subaru-Powered Units)
OM-4434 Page 37
A complete Parts List is available at www.MillerWelds.com
8-2. Routine Maintenance (Subaru-Powered Units)
!
Recycle engine
fluids.
= Check
= Change
= Clean
* To be done by Factory Authorized Service Agent
Stop engine before maintaining.
See
Engine Manual and Maintenance Label
for important start-up, service, and storage
information. Service engine more often if
used in severe conditions.
= Replace
Reference
Every
8
Hours
Section 5-4
Fuel Level
Oil Level
Oil, Fuel Spills
Every
20
Hours
Section 8-4
Spark Arrestor Screen
Every
25
Hours
Section 8-3
Air Cleaner Wrapper
Every
50
Hours
Weld Terminals
Every
100
Hours
Engine
Manual,
Section 8-3,
8-5
Battery Terminals
Cooling System
Oil
Air Cleaner Element
Every
200
Hours
Engine
Manual,
Section 8-5
Unreadable Labels
Spark Plug Gap
Oil Filter
Every
500
Hours
Fuel Filter
Engine
Manual
Weld Cables
OM-4434 Page 38
Slip Rings*
Brushes*
Valve Clearance*
A complete Parts List is available at www.MillerWelds.com
8-3. Servicing Air Cleaner (Subaru-Powered Units)
!
Stop engine.
NOTICE − Do not run engine without air cleaner or with dirty element.
1
Precleaner
1
Wash precleaner with soap and water solution. Allow precleaner to air
dry completely.
2
Spread 1 tablespoon SAE 30 oil
evenly into precleaner. Squeeze
out excess oil.
2
Element
Replace element if damaged, dirty,
or oily.
oil
aircleaner3 11/04 − 803 070 / S-0759
8-4. Servicing Optional Spark Arrestor (Subaru-Powered Units)
!
Stop engine and let cool.
1
Spark Arrestor Screen
Clean and inspect screen. Replace
spark arrestor if screen wires are
broken or missing.
1
Tools Needed:
1/4 in
Ref. 803 750-C / Ref. 801 682
OM-4434 Page 39
A complete Parts List is available at www.MillerWelds.com
8-5. Changing Engine Oil, Oil Filter, and Fuel Filter (Subaru-Powered Units)
!
Stop engine and let cool.
1
Oil Drain Valve
2
Oil Filter
Change engine oil and filter according to engine owner’s manual.
NOTICE − Close valve and valve
cap before adding oil and running
engine.
Oil Fill
Fill crankcase with new oil to full
mark on dipstick (see Section 5-4).
Oil Check
3
Fuel Filter
4
Fuel Line
Replace line if cracked or worn.
Install new filter. Wipe up any spilled
fuel.
Full
Start engine, and check for fuel
leaks.
!
Stop engine, tighten connections as necessary, and wipe
up fuel.
Reset oil maintenance countdown
by flipping Engine Control switch
from Run/Idle to Run three times.
2
3
4
Tools Needed:
1
803 755 / 240 947-A / S-0842
OM-4434 Page 40
A complete Parts List is available at www.MillerWelds.com
8-6. Adjusting Engine Speed (Subaru-Powered Units)
After tuning engine, check engine
speeds with a tachometer (see
table). If necessary, adjust speeds
as follows:
Start engine and run until warm.
Remove rear panel and air cleaner
to access idle speed adjustments.
Remove top cover to access weld/
power speed adjustments.
2
1
Idle Speed Adjustment
Move Engine Control switch to
Run/Idle position.
1
Throttle Solenoid
2
Mounting Screws
3
Idle Speed Screw
Loosen mounting screws. Adjust
solenoid position so engine runs at
idle speed. If necessary, back out
idle speed screw so solenoid can
be moved to correct position. Tighten mounting screws. Be sure solenoid linkage works smoothly.
4
6
Turn idle speed screw for fine
adjustments.
Weld/Power Speed Adjustment
5
Move Engine Control switch to Run
position.
3
4
Jam Nut
5
Lock Nut
6
Weld/Power Speed
Adjustment Screw
Loosen jam nut and lock nut. Turn
adjustment screw until engine runs
at weld/power speed. Tighten jam
nut, and then tighten lock nut.
!
Stop engine.
Reinstall air cleaner, rear panel,
and top cover.
2200 − 2300 rpm
(36.6 − 38.3 Hz)
3675 − 3750 rpm
(61.3 − 62.5 Hz)
Tools Needed:
10 mm
8 mm
803 755
OM-4434 Page 41
A complete Parts List is available at www.MillerWelds.com
8-7. Overload Protection (Subaru-Powered Units)
2
1
Fuse
F6 located in
harness behind left
side door.
!
Stop engine. Disconnect
negative (−) battery cable.
1
Fuse F1 (See Section 11-1)
F1 protects the weld excitation
winding from overload. If F1 opens,
weld output stops or is low.
2
3
3
Fuses F1, F2 located on
bracket behind left side
panel.
Fuse F2 (See Section 11-1)
F2 protects the generator power
excitation winding from overload. If
F2 opens, generator power output
stops or is low.
Fuse F6 (See Section 11-1)
F6 protects the engine wiring system from overload. If F6 opens,
engine will not crank.
Replace any open fuses. Reinstall
cover before operating.
NOTICE − If a fuse opens, it usually
indicates a more serious problem
exists. Contact a Factory Authorized Service Agent.
Tools Needed:
3/8 in
803 750-C
Notes
MATERIAL THICKNESS REFERENCE CHART
24 Gauge (.025 in)
22 Gauge (.031 in)
20 Gauge (.037 in)
18 Gauge (.050 in)
16 Gauge (.063 in)
14 Gauge (.078 in)
1/8 in (.125 in)
3/16 in (.188 in)
1/4 in (.25 in)
5/16 in (.313 in)
3/8 in (.375 in)
1/2 in (.5 in)
OM-4434 Page 42
A complete Parts List is available at www.MillerWelds.com
SECTION 9 − MAINTENANCE − (KOHLER-POWERED UNITS)
9-1. Maintenance Label (Kohler-Powered Units)
OM-4434 Page 43
A complete Parts List is available at www.MillerWelds.com
9-2. Routine Maintenance (Kohler-Powered Units)
!
Recycle engine
fluids.
= Check
= Change
= Clean
* To be done by Factory Authorized Service Agent
Stop engine before maintaining.
See
Engine Manual and Maintenance Label
for important start-up, service, and storage
information. Service engine more often if
used in severe conditions.
= Replace
Reference
Every
8
Hours
Section 5-5
Fuel Level
Oil Level
Oil, Fuel Spills
Every
20
Hours
Section 9-7
Spark Arrestor Screen
Every
25
Hours
Section 9-3
Air Cleaner Wrapper
Every
50
Hours
Weld Terminals
Every
100
Hours
Engine
Manual,
Section 9-3,
9-4
Battery Terminals
Cooling System
Oil
Air Cleaner Element
Every
200
Hours
Engine
Manual,
Section 9-4
Unreadable Labels
Spark Plug Gap
Every
500
Hours
Oil Filter
Fuel Filter
Engine
Manual
Weld Cables
OM-4434 Page 44
Slip Rings*
Brushes*
A complete Parts List is available at www.MillerWelds.com
9-3. Servicing Air Cleaner (Kohler−Powered Units)
!
Stop engine.
NOTICE − Do not run engine without air cleaner or with dirty element.
1
Precleaner
Wash precleaner with soap and water solution. Allow precleaner to air
dry completely.
1
Spread 1 tablespoon SAE 30 oil
evenly into precleaner. Squeeze
out excess oil.
2
2
Element
Replace element if damaged, dirty,
or oily.
oil
aircleaner3 11/04 − 802 772 / S-0759
Notes
Work like a Pro!
Pros weld and cut
safely. Read the
safety rules at
the beginning
of this manual.
OM-4434 Page 45
A complete Parts List is available at www.MillerWelds.com
9-4. Changing Engine Oil, Oil Filter, and Fuel Filter (Kohler-Powered Units)
!
Stop engine and let cool.
1
Oil Drain Valve
2
1/2 ID x 7 in Hose
3
Oil Filter
Change engine oil and filter according to engine owner’s manual.
!
Full
Close valve and valve cap
before adding oil and
running engine.
Fill crankcase with new oil to full
mark on dipstick (see Section 5-5).
4
Fuel Filter
5
Fuel Line
Replace line if cracked or worn.
Install new filter. Wipe up any spilled
fuel.
Start engine, and check for fuel
leaks.
!
4
Stop engine, tighten connections as necessary, and wipe
up fuel.
5
3
2
1
Tools Needed:
803 754-D / S-0842
OM-4434 Page 46
A complete Parts List is available at www.MillerWelds.com
9-5. Adjusting Engine Speed (Kohler-Powered Units)
2200 − 2300 rpm
(36.6 − 38.3 Hz)
3675 − 3750 rpm
(61.3 − 62.5 Hz)
1
After tuning engine, check engine
speeds with a tachometer (see
table). If necessary, adjust speeds
as follows:
Start engine and run until warm.
Turn Fine Control to 10.
Remove rear panel and air cleaner
to access idle speed adjustments.
Remove top cover to access weld/
power speed adjustments.
Idle Speed Adjustment
Move Engine Control switch to
Run/Idle position.
5
2
4
1
Throttle Solenoid
2
Mounting Screws
3
Idle Speed Screw
Loosen mounting screws. Adjust
solenoid position so engine runs at
idle speed. If necessary, back out
idle speed screw so solenoid can
be moved to correct position. Tighten mounting screws. Be sure solenoid linkage works smoothly.
Turn idle speed screw for fine adjustments.
Weld/Power Speed Adjustment
Move Engine Control switch to Run
position.
3
4
Weld/Power Speed
Adjustment Nut
5
Lock Nut
Loosen lock nut. Turn adjustment
nut until engine runs at weld/power
speed. Tighten lock nut.
!
Top View
Stop engine.
Reinstall air cleaner, rear panel,
and top cover.
Tools Needed:
1/4, 3/8 in
803 752-C / 801 209-A
OM-4434 Page 47
A complete Parts List is available at www.MillerWelds.com
9-6. Overload Protection (Kohler-Powered Units)
2
1
Fuse
F6 located in
harness behind left
side door.
3
!
Stop engine. Disconnect
negative (−) battery cable.
1
Fuse F1 (See Section 11-1)
F1 protects the weld excitation
winding from overload. If F1 opens,
weld output stops or is low.
2
Fuse F2 (See Section 11-1)
F2 protects the generator power
excitation winding from overload. If
F2 opens, generator power output
stops or is low.
3
Fuse F6 (See Section 11-1)
F6 protects the engine wiring system from overload. If F6 opens,
engine will not crank.
Fuses F1, F2 located on
Replace any open fuses. Reinstall
cover before operating.
bracket behind left side
panel.
If a fuse opens, it usually indi-
cates a more serious problem
exists. Contact a Factory Authorized Service Agent.
Tools Needed:
3/8 in
803 750-C
9-7. Servicing Optional Spark Arrestor (Kohler-Powered Units)
!
Stop engine and let cool.
1
Spark Arrestor Screen
Clean and inspect screen. Replace
spark arrestor if screen wires are
broken or missing.
1
Tools Needed:
1/4 in
803 750-C / Ref. 801 682-A
OM-4434 Page 48
A complete Parts List is available at www.MillerWelds.com
SECTION 10 − TROUBLESHOOTING
10-1. Welding Troubleshooting
Trouble
Low or no weld output; generator power output okay at ac receptacles.
Remedy
Check control settings.
Check weld connections.
Check fuse F1, and replace if open (see Section 8-7 or 9-6).
Have Factory Authorized Service Agent check brushes, slip rings, capacitor C1, and integrated rectifiers SR2 and SR3.
No weld output or generator power output at ac receptacles.
Be sure all equipment is disconnected from receptacles when starting unit.
Check fuses F1 and F2, and replace if open (see Section 8-7 or 9-6).
Check plug PLG6 connection.
Have Factory Authorized Service Agent check brushes, slip rings, capacitor C1, and integrated rectifiers SR2 and SR3.
Low weld output.
Check fuse F1, and replace if open (see Section 8-7 or 9-6).
Check control settings.
Check engine speed, and adjust if necessary (see Section 8-6 or 9-5).
Service air cleaner according to engine manual.
Have Factory Authorized Service Agent check brushes, slip rings, capacitor C1, and integrated rectifiers SR2 and SR3.
High weld output.
Check control settings.
Check engine speed, and adjust if necessary (see Section 8-6 or 9-5).
Erratic weld output.
Check control settings.
Tighten and clean connections to electrode and workpiece.
Use dry, properly-stored electrodes for Stick and TIG welding.
Remove excessive coils from weld cables.
Clean and tighten connections both inside and outside welding generator.
Check engine speed, and adjust if necessary (see Section 8-6 or 9-5).
Have Factory Authorized Service Agent check brushes, slip rings, and integrated rectifiers SR2, SR3.
10-2. Generator Power Troubleshooting
Trouble
No or low generator power output at ac
receptacles; weld output okay.
Remedy
Reset supplementary protectors (see Section 7-1 or 7-2).
Press optional GFCI receptacle Reset button (see Section 7-2).
Check fuse F2, and replace if open (see Section 8-7 or 9-6).
Check plug PLG6 connection.
Have Factory Authorized Service Agent check brushes, slip rings, and integrated rectifier SR3.
OM-4434 Page 49
A complete Parts List is available at www.MillerWelds.com
Trouble
No generator power or weld output.
Remedy
Be sure all equipment is disconnected from receptacles when starting unit.
Check fuses F1 and F2, and replace if open (see Section 8-7 or 9-6).
Check plug PLG6 connection.
Have Factory Authorized Service Agent check brushes, slip rings, capacitor C1, and integrated rectifiers SR2 and SR3.
Low power output at ac receptacles.
Check fuse F2, and replace if open (see Section 8-7 or 9-6).
Increase Fine control R1 setting to max.
High power output at ac receptacles.
Check engine speed, and adjust if necessary (see Section 8-6 or 9-5).
Erratic power output at ac receptacles.
Check fuel level.
Check engine speed, and adjust if necessary (see Section 8-6 or 9-5).
Check receptacle wiring and connections.
Have Factory Authorized Service Agent check brushes and slip rings.
10-3. Engine Troubleshooting
Trouble
Engine will not crank.
Remedy
Check fuse F6, and replace if open (see Section 8-7 or 9-6).
Check battery voltage.
Check battery connections and tighten if necessary.
Check plug PLG4 and plug PLG8 connections.
Have Factory Authorized Service Agent check Engine Control switch S2.
Engine will not start.
Check fuel level.
Check battery voltage.
Check battery connections and tighten if necessary.
Check oil level (see Section 5-4 or 5-5).
Check low oil pressure shutdown switch.
Have Factory Authorized Service Agent check fuel shutoff solenoid FS1 and diode D8.
Engine starts but stops when Engine
Control switch returns to Run position.
Check oil level.
Check and refill crankcase with proper viscosity oil for operating temperature, if necessary.
Check low oil pressure shutdown switch.
Engine stopped during normal
operation.
Check fuel level.
Check oil level (see Section 5-4 or 5-5).
Check low oil pressure shutdown switch.
Periodically recharge battery (approximately every 3 months).
Replace battery.
Check voltage regulator and connections according to engine manual.
Have Factory Authorized Service Agent check fuel shutoff solenoid FS1.
OM-4434 Page 50
A complete Parts List is available at www.MillerWelds.com
Trouble
Remedy
Battery Discharges between uses.
Clean battery, terminals, and posts with baking soda and water solution; rinse with clear water.
Periodically recharge battery (approximately every 3 months).
Replace battery.
Check voltage regulator and connections according to engine manual.
Engine idles but does not come up to
weld speed.
Have Factory Authorized Service Agent check hour meter/idle module, and current transformer CT1.
Unstable or sluggish engine speeds.
Readjust throttle linkage if necessary. Check throttle solenoid TS1 for smooth operation.
Check oil level. Oil level should not exceed Full mark on dipstick. Fuel pump will operate erratically if
crankcase is overfilled.
Tune-up engine according to engine manual.
Engine does not return to idle speed.
Remove weld and generator power loads.
Check throttle linkage for smooth, non-binding operation.
Have Factory Authorized Service Agent check hour meter/idle module, current transformer CT1, Engine
Control switch S2, and throttle solenoid TS1.
SECTION 11 − PARTS LIST
11-1. Recommended Spare Parts
Dia.
Mkgs.
Part
No.
Description
Quantity
Recommended Spare Parts
. . . . . . . . . F1, F2 . . .
. . . . . . . . . . . F6 . . . . .
....................
....................
....................
....................
....................
....................
....................
....................
....................
....................
....................
....................
....................
169296
021718
215984
230015
230016
066698
215985
067007
230017
066113
199062
198755
198754
215985
198777
. . Fuse, Mintr Gl 25. Amp 125 Volt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . Fuse, Mintr Gl 30. Amp 32 Volt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . Filter, Fuel In−line .250 (Kohler) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . Tune−up & Filter Kit, Kohler (Includes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Air Filter Element, Kohler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Oil Filter, Kohler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Filter, Fuel w/Clamps & 1/4 in Fuel Line . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Air Filter Wrapper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . Filter, Fuel In−line .250 (Subaru) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . Tune−up & Filter Kit, Subaru (Includes) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Element, Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Filter, Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Filter, Fuel w/Clamps & 1/4 Fuel Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
1
1
1
1
1
1
2
1
1
1
1
1
1
1
A complete Parts List is available on-line at www.MillerWelds.com.
OM-4434 Page 51
SECTION 12 − ELECTRICAL DIAGRAMS
Figure 12-1. Circuit Diagram For Welding Generator
OM-4434 Page 52
228 461-A
OM-4434 Page 53
SECTION 13 − GENERATOR POWER GUIDELINES
The views in this section are intended to be representative of all engine-driven welding generators. Your unit may differ from those shown.
13-1. Selecting Equipment
1
2
3
Generator Power Receptacles
− Neutral Bonded To Frame
3-Prong Plug From Case
Grounded Equipment
2-Prong Plug From Double
Insulated Equipment
Be sure equipment has double
insulated symbol and/or wording on it.
1
!
2
Do not use 2-prong plug unless equipment is double insulated.
3
OR
gen_pwr 2008−01 − ST-800 577
13-2. Grounding Generator To Truck Or Trailer Frame
!
Always ground generator
frame to vehicle frame to prevent electric shock and static
electricity hazards.
!
Also see AWS Safety &
Health Fact Sheet No. 29,
Grounding of Portable And
Vehicle Mounted Welding
Generators.
1
Equipment Grounding
Terminal (On Front Panel)
Grounding Cable (Not
Supplied)
Metal Vehicle Frame
2
3
1
2
Connect cable from equipment
ground terminal to metal vehicle
frame. Use #10 AWG or larger
insulated copper wire.
Electrically
bond generator
frame to vehicle frame by metal-to-metal contact.
GND/PE
!
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.
!
If unit does not have GFCI receptacles, use GFCI-protected extension cord.
3
800 652-D
OM-4434 Page 54
13-3. Grounding When Supplying Building Systems
1
2
1
2
Use #10 AWG or larger insulated
copper wire.
3
GND/PE
Equipment Grounding
Terminal
Grounding Cable
Ground Device
Use ground device as stated in
electrical codes.
2
3
!
Ground generator to system
earth ground if supplying
power to a premises (home,
shop, farm) wiring system.
!
Also see AWS Safety &
Health Fact Sheet No. 29,
Grounding of Portable And
Vehicle Mounted Welding
Generators.
ST-800 576-B
13-4. How Much Power Does Equipment Require?
1
Resistive Load
A light bulb is a resistive load and
requires a constant amount of power.
2
3
2
1
Non-Resistive Load
Equipment with a motor is a non-resistive load and requires approximately six times more power while
starting the motor than when running
(see Section 13-8).
VOLTS 115
AMPS 4.5
Hz
60
3
Rating Data
Rating shows volts and amperes, or
watts required to run equipment.
Amperes x Volts = Watts
Example 1: If a drill uses 4.5 amperes at 115 volts, calculate its running power requirement in watts.
3
4.5 A x 115 V = 520 W
The load applied by the drill is 520
watts.
Example 2: If three 200 watt flood
lamps are used with the drill from Example 1, add the individual loads to
calculate total load.
(3 x 200W) + 520 W = 1120 W
The total load applied by the three
flood lamps and drill is 1120 watts.
S-0623
OM-4434 Page 55
13-5. Approximate Power Requirements For Industrial Motors
Industrial Motors
Split Phase
Capacitor Start-Induction Run
Capacitor Start-Capacitor Run
Fan Duty
Rating
Starting Watts
Running Watts
1/8 HP
1/6 HP
1/4 HP
1/3 HP
1/2 HP
1/3 HP
1/2 HP
3/4 HP
1 HP
1-1/2 HP
2 HP
3 HP
5 HP
1-1/2 HP
5 HP
7-1/2 HP
10 HP
1/8 HP
1/6 HP
1/4 HP
1/3 HP
1/2 HP
800
1225
1600
2100
3175
2020
3075
4500
6100
8200
10550
15900
23300
8100
23300
35000
46700
1000
1400
1850
2400
3500
300
500
600
700
875
720
975
1400
1600
2200
2850
3900
6800
2000
6000
8000
10700
400
550
650
800
1100
13-6. Approximate Power Requirements For Farm/Home Equipment
Farm/Home Equipment
Stock Tank De-Icer
Grain Cleaner
Portable Conveyor
Grain Elevator
Milk Cooler
Milker (Vacuum Pump)
FARM DUTY MOTORS
Std. (e.g. Conveyors,
Feed Augers, Air
Compressors)
High Torque (e.g. Barn
Cleaners, Silo Unloaders,
Silo Hoists, Bunk Feeders)
3-1/2 cu. ft. Mixer
High Pressure 1.8 Gal/Min
Washer 2 gal/min
2 gal/min
Refrigerator or Freezer
Shallow Well Pump
Sump Pump
OM-4434 Page 56
Rating
1/4 HP
1/2 HP
3/4 HP
2 HP
1/3 HP
1/2 HP
3/4 HP
1 HP
1-1/2 HP
2 HP
3 HP
5 HP
1-1/2 HP
5 HP
7-1/2 HP
10 HP
1/2 HP
500 PSI
550 PSI
700 PSI
1/3 HP
1/2 HP
1/3 HP
1/2 HP
Starting Watts
Running Watts
1000
1650
3400
4400
2900
10500
1720
2575
4500
6100
8200
10550
15900
23300
8100
23300
35000
46700
3300
3150
4500
6100
3100
2150
3100
2100
3200
1000
650
1000
1400
1100
2800
720
975
1400
1600
2200
2850
3900
6800
2000
6000
8000
10700
1000
950
1400
1600
800
750
1000
800
1050
13-7. Approximate Power Requirements For Contractor Equipment
Contractor
Hand Drill
Circular Saw
Table Saw
Band Saw
Bench Grinder
Air Compressor
Electric Chain Saw
Electric Trimmer
Electric Cultivator
Elec. Hedge Trimmer
Flood Lights
Submersible Pump
Centrifugal Pump
Floor Polisher
High Pressure Washer
55 gal Drum Mixer
Wet & Dry Vac
Rating
Starting Watts
Running Watts
1/4 in
3/8 in
1/2 in
6-1/2 in
7-1/4 in
8-1/4 in
9 in
10 in
14 in
6 in
8 in
10 in
1/2 HP
1 HP
1-1/2 HP
2 HP
1-1/2 HP, 12 in
2 HP, 14 in
Standard 9 in
Heavy Duty 12 in
1/3 HP
18 in
HID
Metal Halide
Mercury
Sodium
Vapor
400 gph
900 gph
3/4 HP, 16 in
1 HP, 20 in
1/2 HP
3/4 HP
1 HP
1/4 HP
1.7 HP
2-1/2 HP
350
400
600
500
900
1400
4500
6300
2500
1720
3900
5200
3000
6000
8200
10500
1100
1100
350
500
2100
400
125
313
1000
1400
1250
600
900
4500
6100
3150
4500
6100
1900
900
1300
350
400
600
500
900
1400
1500
1800
1100
720
1400
1600
1000
1500
2200
2800
1100
1100
350
500
700
400
100
250
1000
200
500
1400
1600
950
1400
1600
700
900
1300
OM-4434 Page 57
13-8. Power Required To Start Motor
Single-Phase Induction Motor Starting Requirements
Motor Start
Code
G
H
J
K
L
M
N
P
KVA/HP
6.3
7.1
8.0
9.0
10.0
11.2
12.5
14.0
1
2
3
4
Motor Start Code
Running Amperage
Motor HP
Motor Voltage
To find starting amperage:
4
1
3
AC MOTOR
VOLTS 230
AMPS 2.5
CODE M
Hz
60
HP
1/4
PHASE 1
2
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 amperage (see example).
Welding generator amperage output must be at least twice the
motor’s running amperage.
(kVA/HP x HP x 1000) / Volts =
Starting Amperage
Example: Calculate starting amperage required for a 230 V, 1/4 HP motor with a motor start code of M.
Volts = 230, HP = 1/4, kVA/HP =
11.2
(11.2 x 1/4 x 1000) / 230 = 12.2A
Starting the motor requires 12.2
amperes.
S-0624
13-9. How Much Power Can Generator Supply?
1
Limit Load To 90% Of
Generator Output
Always start non-resistive (motor)
loads in order from largest to smallest, and add resistive loads last.
2
1
2
5 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-4434 Page 58
13-10. Typical Connections To Supply Standby Power
1
2
Utility
Electrical
Service
4
3
Transfer Switch
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 required if generator will supply standby power during
emergencies or power outages.
1 Utility Electrical Service
5
2 Transfer Switch (Double-Throw)
Essential
Loads
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 (customersupplied). Switch rating must be
same as or greater than the branch
overcurrent protection.
3 Fused Disconnect Switch
Install correct switch (customersupplied) 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 13-4).
OM-4434 Page 59
13-11. Selecting Extension Cord (Use Shortest Cord Possible)
Cord Lengths for 120 Volt Loads
If unit does not have GFCI receptacles, use GFCI-protected extension cord.
Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
Current
(Amperes)
Load (Watts)
5
600
7
840
10
1200
15
4
6
8
10
12
14
350 (106)
225 (68)
137 (42)
100 (30)
400 (122)
250 (76)
150 (46)
100 (30)
62 (19)
400 (122)
275 (84)
175 (53)
112 (34)
62 (19)
50 (15)
1800
300 (91)
175 (53)
112 (34)
75 (23)
37 (11)
30 (9)
20
2400
225 (68)
137 (42)
87 (26)
50 (15)
30 (9)
25
3000
175 (53)
112 (34)
62 (19)
37 (11)
30
3600
150 (46)
87 (26)
50 (15)
37 (11)
35
4200
125 (38)
75 (23)
50 (15)
40
4800
112 (34)
62 (19)
37 (11)
45
5400
100 (30)
62 (19)
50
6000
87 (26)
50 (15)
*Conductor size is based on maximum 2% voltage drop
Cord Lengths for 240 Volt Loads
If unit does not have GFCI receptacles, use GFCI-protected extension cord.
Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
Current
(Amperes)
Load (Watts)
5
1200
7
1680
10
2400
15
4
8
10
12
14
700 (213)
450 (137)
225 (84)
200 (61)
800 (244)
500 (152)
300 (91)
200 (61)
125 (38)
800 (244)
550 (168)
350 (107)
225 (69)
125 (38)
100 (31)
3600
600 (183)
350 (107)
225 (69)
150 (46)
75 (23)
60 (18)
20
4800
450 (137)
275 (84)
175 (53)
100 (31)
60 (18)
25
6000
350 (107)
225 (69)
125 (38)
75 (23)
30
7000
300 (91)
175 (53)
100 (31)
75 (23)
35
8400
250 (76)
150 (46)
100 (31)
40
9600
225 (69)
125 (38)
75 (23)
45
10,800
200 (61)
125 (38)
50
12,000
175 (53)
100 (31)
*Conductor size is based on maximum 2% voltage drop
OM-4434 Page 60
6
SECTION 14 − STICK WELDING (SMAW) GUIDELINES
14-1. Stick Welding Procedure
!
Weld current starts when
electrode touches workpiece.
!
Weld current can damage
electronic parts in vehicles.
Disconnect both battery
cables before welding on a
vehicle. Place work clamp
as close to the weld as
possible.
Equipment Needed:
Tools Needed:
Always wear appropriate per1
Constant Current
Welding Power Source
sonal protective clothing.
Workpiece
Make sure workpiece is clean before welding.
2
3
Work Clamp
Electrode
A small diameter electrode requires less current than a large
one. Follow electrode manufacturer’s instructions when setting weld
amperage (see Section 14-2).
4
5
6
5
4
Insulated Electrode Holder
Electrode Holder Position
Arc Length
Arc length is the distance from the
electrode to the workpiece. A short
arc with correct amperage will give
a sharp, crackling sound.
2
7
3
Slag
Use a chipping hammer and wire
brush to remove slag. Remove
slag and check weld bead before
making another weld pass.
6
1
7
stick 2008−05 − ST-151 593
OM-4434 Page 61
6013
7014
7018
7024
Ni-Cl
308L
ALL
DEEP
EP
ALL
DEEP
6013
EP,EN
ALL
LOW
GENERAL
7014
EP,EN
ALL
MED
7018
EP
ALL
LOW
SMOOTH, EASY,
FAST
LOW HYDROGEN,
STRONG
7024
EP,EN
NI-CL
EP
FLAT
HORIZ
FILLET
ALL
308L
EP
ALL
USAGE
EP
6011
AC
PENETRATION
3/32
1/8
5/32
3/16
7/32
1/4
1/16
5/64
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
7/32
1/4
3/32
1/8
5/32
3/16
3/32
1/8
5/32
DC*
6010
ELECTRODE
450
400
350
300
AMPERAGE
RANGE
250
200
150
POSITION
6010
&
6011
100
50
DIAMETER
ELECTRODE
14-2. Electrode and Amperage Selection Chart
MIN. PREP, ROUGH
HIGH SPATTER
LOW
SMOOTH, EASY,
FASTER
LOW
CAST IRON
LOW
STAINLESS
*EP = ELECTRODE POSITIVE (REVERSE POLARITY)
EN = ELECTRODE NEGATIVE (STRAIGHT POLARITY)
Ref. S-087 985-A
14-3. Striking an Arc
1
2
3
Electrode
Workpiece
Arc
Scratch Technique
1
2
Drag electrode across workpiece
like striking a match; lift electrode
slightly after touching work. If arc
goes out, electrode was lifted too
high. If electrode sticks to workpiece, use a quick twist to free it.
Tapping Technique
Bring electrode straight down to
workpiece; then lift slightly to start
arc. If arc goes out, electrode was
lifted too high. If electrode sticks to
workpiece, use a quick twist to free
it.
3
1
2
3
S-0049 / S-0050
OM-4434 Page 62
14-4. Positioning Electrode Holder
1
2
End View Of Work Angle
Side View Of Electrode Angle
1
10°-30°
90°
2
90°
Groove Welds
10°-30°
45°
1
2
45°
Fillet Welds
S-0060
14-5. Poor Weld Bead Characteristics
1
2
3
4
5
Large Spatter Deposits
Rough, Uneven Bead
Slight Crater During Welding
Bad Overlap
Poor Penetration
4
2
3
5
1
S-0053-A
14-6. Good Weld Bead Characteristics
1
2
3
Fine Spatter
Uniform Bead
Moderate Crater During
Welding
Weld a new bead or layer for each
1/8 in. (3.2 mm) thickness in metals
being welded.
2
3
4
5
4
5
No Overlap
Good Penetration into Base
Metal
1
S-0052-B
OM-4434 Page 63
14-7. Conditions That Affect Weld Bead Shape
Weld bead shape is affected
by
electrode angle,
arc
length, travel speed, and thickness of base metal.
Angle Too Small
Correct Angle
10° - 30°
Angle Too Large
Electrode Angle
Drag
Spatter
Arc Length
Too Short
Normal
Too Long
Slow
Normal
Fast
Travel Speed
S-0061
14-8. Electrode Movement During Welding
Normally,
2
1
1
2
3
3
a single stringer
bead is satisfactory for most
narrow groove weld joints;
however, for wide groove weld
joints or bridging across gaps,
a weave bead or multiple
stringer beads work better.
Stringer Bead − Steady
Movement Along Seam
Weave Bead − Side to Side
Movement Along Seam
Weave Patterns
Use weave patterns to cover a
wide area in one pass of the electrode. Do not let weave width exceed 2-1/2 times diameter of
electrode.
S-0054-A
OM-4434 Page 64
14-9. Butt Joints
1
Tack Welds
Prevent edges of joint from drawing together ahead of electrode by
tack welding the materials in position before final weld.
1
2
2
Square Groove Weld
Good for materials up to 3/16 in. (5
mm) thick.
3
1/16 in.
(1.6 mm)
Single V-Groove Weld
Good for materials 3/16 − 3/4 in.
(5-19 mm) thick. Cut bevel with
oxyacetylene or plasma cutting
equipment. Remove scale from
material after cutting. A grinder can
also be used to prepare bevels.
30°
Create 30 degree angle of bevel on
materials in V-groove welding.
4
Good for materials thicker than
3/16 in. (5 mm).
4
3
Double V-Groove Weld
S-0062
14-10. Lap Joint
1
2
Electrode
Single-Layer Fillet Weld
Move electrode in circular motion.
3
30°
Or Less
30°
Or Less
1
1
Multi-Layer Fillet Weld
Weld a second layer when a heavier fillet is needed. Remove slag before making another weld pass.
Weld both sides of joint for maximum strength.
3
2
S-0063 / S-0064
14-11. Tee Joint
1
2
Electrode
Fillet Weld
Keep arc short and move at definite rate of speed. Hold electrode
as shown to provide fusion into the
corner. Square edge of the weld
surface.
For maximum strength weld both
sides of upright section.
1
2
45°
Or
Less
1
2
3
3
Multi-Layer Deposits
Weld a second layer when a heavier fillet is needed. Use any of the
weaving patterns shown in Section
14-8. Remove slag before making
another weld pass.
S-0060 / S-0058-A / S-0061
OM-4434 Page 65
14-12. Weld Test
1
2
3
Vise
Weld Joint
Hammer
Strike weld joint in direction shown.
A good weld bends over but does
not break.
3
3
2 To 3 in.
(51-76 mm)
1/4 in.
(6.4 mm)
2
1
2 To 3 in.
(51-76 mm)
2
1
S-0057-B
14-13. Troubleshooting
Porosity − small cavities or holes resulting from gas pockets in weld metal.
Possible Causes
Corrective Actions
Arc length too long.
Reduce arc length.
Damp electrode.
Use dry electrode.
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, coatings, slag, and dirt from work surface before
welding.
Excessive Spatter − scattering of molten metal particles that cool to solid form near weld bead.
Possible Causes
Corrective Actions
Amperage too high for electrode.
Decrease amperage or select larger electrode.
Arc length too long or voltage too high.
Reduce arc length or voltage.
Incomplete Fusion − failure of weld metal to fuse completely with base metal or a preceeding
weld bead.
Possible Causes
Corrective Actions
Insufficient heat input.
Increase amperage. Select larger electrode and increase amperage.
Improper welding technique.
Place stringer bead in proper location(s) at joint during welding.
Adjust work angle or widen groove to access bottom during welding.
Momentarily hold arc on groove side walls when using weaving technique.
Keep arc on leading edge of weld puddle.
Workpiece dirty.
OM-4434 Page 66
Remove all grease, oil, moisture, rust, paint, coatings, slag, and dirt from work surface before
welding.
Lack Of Penetration − shallow fusion between weld metal and base metal.
Lack of Penetration
Good Penetration
Possible Causes
Corrective Actions
Improper joint preparation.
Material too thick. Joint preparation and design must provide access to bottom of groove.
Improper weld technique.
Keep arc on leading edge of weld puddle.
Insufficient heat input.
Increase amperage. Select larger electrode and increase amperage.
Reduce travel speed.
Excessive Penetration − weld metal melting through base metal and hanging underneath weld.
Excessive Penetration Good Penetration
Possible Causes
Corrective Actions
Excessive heat input.
Select lower amperage. Use smaller electrode.
Increase and/or maintain steady travel speed.
Burn-Through − weld metal melting completely through base metal resulting in holes where no
metal remains.
Possible Causes
Corrective Actions
Excessive heat input.
Select lower amperage. Use smaller electrode.
Increase and/or maintain steady travel speed.
Waviness Of Bead − weld metal that is not parallel and does not cover joint formed by base metal.
Possible Causes
Corrective Actions
Unsteady hand.
Use two hands. Practice technique.
Distortion − contraction of weld metal during welding that forces base metal to move.
Base metal moves
in the direction of
the weld bead.
Possible Causes
Corrective Actions
Excessive heat input.
Use restraint (clamp) to hold base metal in position.
Make tack welds along joint before starting welding operation.
Select lower amperage for electrode.
Increase travel speed.
Weld in small segments and allow cooling between welds.
OM-4434 Page 67
SECTION 15 − MIG WELDING (GMAW) GUIDELINES
15-1. Typical MIG Process Connections Using A Voltage-Sensing Wire Feeder
!
Constant
Current (CC)
Or Constant
Voltage (CV)
Power Source
Voltage sensing wire feeders are
used with constant current (CC) or
constant voltage (CV) power
sources (14 pin receptacle not required).
If using a CC or CV welding power
source without a weld output contactor, use optional secondary contactor.
Gun
Voltage
Sensing Wire
Feeder
Workpiece
Work Clamp
Weld current can damage
electronic parts in vehicles.
Disconnect both battery
cables before welding on a
vehicle. Place work clamp as
close to the weld as possible.
Voltage
Sensing Clamp
For GMAW, use optional gas valve.
Electrode Lead
Work Lead
802 488
15-2. Holding And Positioning Welding Gun
Welding wire is energized when gun trigger is pressed. Before lowering helmet and pressing trigger, be sure wire is no more than 1/2 in (13 mm)
past end of nozzle, and tip of wire is positioned correctly on seam.
1
1
2
2
3
4
3
5
5
Hold Gun and Control Gun
Trigger
Workpiece
Work Clamp
Electrode Extension (Stickout)
1/4 to 1/2 in (6 To 13 mm)
Cradle Gun and Rest Hand on
Workpiece
4
0°-15°
90°
90°
End View Of Work Angle
0°-15°
45°
45°
Side View Of Gun Angle
GROOVE WELDS
End View Of Work Angle
Side View Of Gun Angle
FILLET WELDS
S-0421-A
OM-4434 Page 68
15-3. Conditions That Affect Weld Bead Shape
Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed,
thickness of base metal, wire feed speed
(weld current), and voltage.
10°
Push
Perpendicular
10°
Drag
GUN ANGLES AND WELD BEAD PROFILES
Short
Normal
Long
ELECTRODE EXTENSIONS (STICKOUT)
Short
Normal
Long
FILLET WELD ELECTRODE EXTENSIONS (STICKOUT)
Slow
Normal
GUN TRAVEL SPEED
Fast
S-0634
OM-4434 Page 69
15-4. Gun Movement During Welding
Normally, a single stringer bead is satisfactory for most narrow groove weld joints; however, for wide groove weld joints or bridging across gaps,
a weave bead or multiple stringer beads works better.
1
1
2
2
3
Stringer Bead − Steady
Movement Along Seam
Weave Bead − Side To Side
Movement Along Seam
Weave Patterns
Use weave patterns to cover a wide
area in one pass of the electrode.
3
S-0054-A
15-5. Poor Weld Bead Characteristics
1
2
3
1
2
3
4
5
Large Spatter Deposits
Rough, Uneven Bead
Slight Crater During Welding
Bad Overlap
Poor Penetration
4
5
S-0053-A
15-6. Good Weld Bead Characteristics
1
2
3
1
Fine Spatter
Uniform Bead
Moderate Crater During
Welding
Weld a new bead or layer for each
1/8 in (3.2 mm) thickness in metals
being welded.
4
5
2
3
4
No Overlap
Good Penetration into Base
Metal
5
S-0052-B
OM-4434 Page 70
15-7. Troubleshooting − Excessive Spatter
Excessive Spatter − scattering of molten metal particles that
cool to solid form near weld bead.
S-0636
Possible Causes
Corrective Actions
Wire feed speed too high.
Select lower wire feed speed.
Voltage too high.
Select lower voltage range.
Electrode extension (stickout) too long.
Use shorter electrode extension (stickout).
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before welding.
Insufficient shielding gas at welding arc.
Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.
Dirty welding wire.
Use clean, dry welding wire.
Eliminate pickup of oil or lubricant on welding wire from feeder or liner.
15-8. Troubleshooting − Porosity
Porosity − small cavities or holes resulting from gas pockets
in weld metal.
S-0635
Possible Causes
Insufficient shielding gas at welding arc.
Corrective Actions
Increase flow of shielding gas at regulator/flowmeter and/or prevent drafts near welding arc.
Remove spatter from gun nozzle.
Check gas hoses for leaks.
Place nozzle 1/4 to 1/2 in (6-13 mm) from workpiece.
Hold gun near bead at end of weld until molten metal solidifies.
Wrong gas.
Use welding grade shielding gas; change to different gas.
Dirty welding wire.
Use clean, dry welding wire.
Eliminate pick up of oil or lubricant on welding wire from feeder or liner.
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, coatings, and dirt from work surface before welding.
Use a more highly deoxidizing welding wire (contact supplier).
Welding wire extends too far out of nozzle.
Be sure welding wire extends not more than 1/2 in (13 mm) beyond nozzle.
15-9. Troubleshooting − Excessive Penetration
Excessive Penetration − weld metal melting through base metal
and hanging underneath weld.
Excessive Penetration Good Penetration
Possible Causes
Excessive heat input.
S-0639
Corrective Actions
Select lower voltage range and reduce wire feed speed.
Increase travel speed.
OM-4434 Page 71
15-10. Troubleshooting − Lack Of Penetration
Lack Of Penetration − shallow
fusion between weld metal and
base metal.
Lack of Penetration
Good Penetration
S-0638
Possible Causes
Corrective Actions
Improper joint preparation.
Material too thick. Joint preparation and design must provide access to bottom of groove while
maintaining proper welding wire extension and arc characteristics.
Improper weld technique.
Maintain normal gun angle of 0 to 15 degrees to achieve maximum penetration.
Keep arc on leading edge of weld puddle.
Be sure welding wire extends not more than 1/2 in (13 mm) beyond nozzle.
Insufficient heat input.
Select higher wire feed speed and/or select higher voltage range.
Reduce travel speed.
15-11. Troubleshooting − Incomplete Fusion
Incomplete Fusion − failure of weld metal to fuse completely with
base metal or a preceeding weld bead.
S-0637
Possible Causes
Corrective Actions
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and dirt from work surface before
welding.
Insufficient heat input.
Select higher voltage range and/or adjust wire feed speed.
Improper welding technique.
Place stringer bead in proper location(s) at joint during welding.
Adjust work angle or widen groove to access bottom during welding.
Momentarily hold arc on groove side walls when using weaving technique.
Keep arc on leading edge of weld puddle.
Use correct gun angle of 0 to 15 degrees.
15-12. Troubleshooting − Burn-Through
Burn-Through − weld metal melting completely through base metal
resulting in holes where no metal remains.
S-0640
Possible Causes
Excessive heat input.
Corrective Actions
Select lower voltage range and reduce wire feed speed.
Increase and/or maintain steady travel speed.
OM-4434 Page 72
15-13. Troubleshooting − Waviness Of Bead
Waviness Of Bead − weld metal that is not parallel and does not cover
joint formed by base metal.
S-0641
Possible Causes
Corrective Actions
Welding wire extends too far out of nozzle.
Be sure welding wire extends not more than 1/2 in (13 mm) beyond nozzle.
Unsteady hand.
Support hand on solid surface or use two hands.
15-14. Troubleshooting − Distortion
Distortion − contraction of weld metal during welding that forces
base metal to move.
Base metal moves
in the direction of
the weld bead.
Possible Causes
Excessive heat input.
S-0642
Corrective Actions
Use restraint (clamp) to hold base metal in position.
Make tack welds along joint before starting welding operation.
Select lower voltage range and/or reduce wire feed speed.
Increase travel speed.
Weld in small segments and allow cooling between welds.
OM-4434 Page 73
15-15. Common MIG Shielding Gases
This is a general chart for common gases and where they are used. Many different combinations (mixtures) of
shielding gases have been developed over the years. The most commonly used shielding gases are listed in the
following table.
Application
Gas
Spray Arc Steel
Short Circuiting
Steel
Spray Arc
Stainless Steel
Short Circuiting
Stainless Steel
Argon
Argon + 1% O2
Flat & Horizontal5
Fillet
Flat & Horizontal5
Fillet
Argon + 2% O2
Flat & Horizontal5
Fillet
Flat & Horizontal5
Fillet
Argon + 5% O2
Flat & Horizontal5
Fillet
Argon + 8% CO2
Flat & Horizontal5
Fillet
All Positions
Argon + 25%
CO2
Flat & Horizontal1
Fillet
All Positions
Argon + 50%
CO2
CO2
Spray Arc
Aluminum
Short Circuiting
Aluminum
All Positions5
All Positions
All Positions3
All Positions
Flat & Horizontal1
Fillet
All Positions
Helium
All Positions2
Argon + Helium
All Positions2
Tri-Mix4
1
Globular Transfer
2
Heavy Thicknesses
3
Single Pass Welding Only
4
90% HE + 7-1/2% AR + 2-1/2% CO2
5
Also for GMAW-P, All Positions
OM-4434 Page 74
All Positions
Effective January 1, 2008
(Equipment with a serial number preface of LJ or newer)
Warranty Questions?
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LIMITED WARRANTY − Subject to the terms and conditions
* Induction Heating Coils and Blankets, Cables, and
below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to
Non-Electronic Controls
its original retail purchaser that new Miller equipment sold after
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Miller shall honor warranty claims on warranted equipment listed
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periods. All warranty time periods start on the delivery date of the
equipment to the original end-user purchaser, and not to exceed
one year after the equipment is shipped to a North American
distributor or eighteen months after the equipment is shipped to
an International distributor.
1.
2.
3.
4.
5.
5 Years Parts — 3 Years Labor
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3 Years — Parts and Labor
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Miller’s True Blue® Limited Warranty shall not apply to:
1.
Consumable components; such as contact tips,
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2.
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miller_warr 2008-01
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