Operator’s Manual

AC-225-S & AC/DC 225/125

For use with machines having Code Numbers:
10420, 10421, 10422,
10423, 10424, 11074,
11602, 11603, 11604,
11674, 11675

Register your machine:

www.lincolnelectric.com/register
Authorized Service and Distributor Locator:
www.lincolnelectric.com/locator

Save for future reference

Date Purchased

Code: (ex: 10859)

Serial: (ex: U1060512345)

IM237-M | Issue Date Jul-13

© Lincoln Global, Inc. All Rights Reserved.
 THANK YOU FOR SELECTING
A QUALITY PRODUCT BY KEEP YOUR HEAD OUT OF THE FUMES.
LINCOLN ELECTRIC. DON’T get too close to the arc.
Use corrective lenses if necessary
to stay a reasonable distance
away from the arc.
READ and obey the Safety Data
PLEASE EXAMINE CARTON AND EQUIPMENT FOR Sheet (SDS) and the warning label
DAMAGE IMMEDIATELY that appears on all containers of
When this equipment is shipped, title passes to the purchaser welding materials.
upon receipt by the carrier. Consequently, claims for material USE ENOUGH VENTILATION or
damaged in shipment must be made by the purchaser against the exhaust at the arc, or both, to
transportation company at the time the shipment is received. keep the fumes and gases from
your breathing zone and the general area.
IN A LARGE ROOM OR OUTDOORS, natural ventilation may be
adequate if you keep your head out of the fumes (See below).
SAFETY DEPENDS ON YOU
USE NATURAL DRAFTS or fans to keep the fumes away
Lincoln arc welding and cutting equipment is designed and built
from your face.
with safety in mind. However, your overall safety can be increased
by proper installation ... and thoughtful operation on your part. If you develop unusual symptoms, see your supervisor.
DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT Perhaps the welding atmosphere and ventilation system
WITHOUT READING THIS MANUAL AND THE SAFETY should be checked.
PRECAUTIONS CONTAINED THROUGHOUT. And, most importantly,
think before you act and be careful.
WEAR CORRECT EYE, EAR &
BODY PROTECTION
PROTECT your eyes and face with welding helmet
WARNING properly fitted and with proper grade of filter plate
(See ANSI Z49.1).
This statement appears where the information must be followed
exactly to avoid serious personal injury or loss of life. PROTECT your body from welding spatter and arc
flash with protective clothing including woolen
clothing, flame-proof apron and gloves, leather
CAUTION leggings, and high boots.
PROTECT others from splatter, flash, and glare
This statement appears where the information must be followed with protective screens or barriers.
to avoid minor personal injury or damage to this equipment.
IN SOME AREAS, protection from noise may be appropriate.
BE SURE protective equipment is in good condition.
Also, wear safety glasses in work area
AT ALL TIMES.

SPECIAL SITUATIONS
DO NOT WELD OR CUT containers or materials which previously
had been in contact with hazardous substances unless they are
properly cleaned. This is extremely dangerous.
DO NOT WELD OR CUT painted or plated parts unless special
precautions with ventilation have been taken. They can release
highly toxic fumes or gases.
Additional precautionary measures
PROTECT compressed gas cylinders from excessive heat,
mechanical shocks, and arcs; fasten cylinders so they cannot fall.
BE SURE cylinders are never grounded or part of an
electrical circuit.
REMOVE all potential fire hazards from welding area.
ALWAYS HAVE FIRE FIGHTING EQUIPMENT READY FOR
IMMEDIATE USE AND KNOW HOW TO USE IT.
Safety 01 of 04 - 06/15/2016
 SAFETY

SECTION A: 1.d. Keep all equipment safety guards, covers

and devices in position and in good repair.
Keep hands, hair, clothing and tools away
WARNINGS from V-belts, gears, fans and all other
moving parts when starting, operating or
repairing equipment.
CALIFORNIA PROPOSITION 65 WARNINGS
Diesel Engines 1.e. In some cases it may be necessary to remove safety guards to
perform required maintenance. Remove guards only when
Diesel engine exhaust and some of its constituents are known necessary and replace them when the maintenance requiring
to the State of California to cause cancer, birth defects, and other their removal is complete. Always use the greatest care when
reproductive harm. working near moving parts.
Gasoline Engines 1.f. Do not put your hands near the engine fan. Do not attempt to
The engine exhaust from this product contains chemicals known override the governor or idler by pushing on the throttle control
to the State of California to cause cancer, birth defects, or other rods while the engine is running.
reproductive harm.
1.g. To prevent accidentally starting gasoline engines while turning
the engine or welding generator during maintenance work,
disconnect the spark plug wires, distributor cap or magneto wire
ARC WELDING CAN BE HAZARDOUS. PROTECT as appropriate.
YOURSELF AND OTHERS FROM POSSIBLE SERIOUS
1.h. To avoid scalding, do not remove the radiator
INJURY OR DEATH. KEEP CHILDREN AWAY. pressure cap when the engine is hot.
PACEMAKER WEARERS SHOULD CONSULT WITH
THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For
additional safety information, it is strongly recommended
that you purchase a copy of “Safety in Welding & Cutting -
ANSI Standard Z49.1” from the American Welding Society, ELECTRIC AND
P.O. Box 351040, Miami, Florida 33135 or CSA Standard
W117.2-1974. A Free copy of “Arc Welding Safety” booklet MAGNETIC FIELDS MAY
E205 is available from the Lincoln Electric Company, BE DANGEROUS
22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION, 2.a. Electric current flowing through any conductor
MAINTENANCE AND REPAIR PROCEDURES ARE causes localized Electric and Magnetic Fields (EMF).
PERFORMED ONLY BY QUALIFIED INDIVIDUALS. Welding current creates EMF fields around welding cables
and welding machines

2.b. EMF fields may interfere with some pacemakers, and

welders having a pacemaker should consult their physician
before welding.
FOR ENGINE POWERED 2.c. Exposure to EMF fields in welding may have other health effects
EQUIPMENT. which are now not known.

1.a. Turn the engine off before troubleshooting 2.d. All welders should use the following procedures in order to
and maintenance work unless the minimize exposure to EMF fields from the welding circuit:
maintenance work requires it to be running. 2.d.1. Route the electrode and work cables together - Secure
them with tape when possible.
1.b. Operate engines in open, well-ventilated
2.d.2. Never coil the electrode lead around your body.
areas or vent the engine exhaust fumes outdoors.
2.d.3. Do not place your body between the electrode and work
1.c. Do not add the fuel near an open flame cables. If the electrode cable is on your right side, the
welding arc or when the engine is running. work cable should also be on your right side.
Stop the engine and allow it to cool before 2.d.4. Connect the work cable to the workpiece as close as pos-
refueling to prevent spilled fuel from sible to the area being welded.
vaporizing on contact with hot engine parts
2.d.5. Do not work next to welding power source.
and igniting. Do not spill fuel when filling
tank. If fuel is spilled, wipe it up and do not start engine until
fumes have been eliminated.

Safety 02 of 04 - 06/15/2016
 SAFETY

ELECTRIC SHOCK ARC RAYS CAN BURN.

CAN KILL.
3.a. The electrode and work (or ground) circuits are 4.a. Use a shield with the proper filter and cover plates to protect your
electrically “hot” when the welder is on. Do eyes from sparks and the rays of the arc when welding or
not touch these “hot” parts with your bare skin or wet clothing. observing open arc welding. Headshield and filter lens should
Wear dry, hole-free gloves to insulate hands. conform to ANSI Z87. I standards.

3.b. Insulate yourself from work and ground using dry insulation. 4.b. Use suitable clothing made from durable flame-resistant material
Make certain the insulation is large enough to cover your full area to protect your skin and that of your helpers from the arc rays.
of physical contact with work and ground.
4.c. Protect other nearby personnel with suitable, non-flammable
In addition to the normal safety precautions, if screening and/or warn them not to watch the arc nor expose
welding must be performed under electrically themselves to the arc rays or to hot spatter or metal.
hazardous conditions (in damp locations or while
wearing wet clothing; on metal structures such as
floors, gratings or scaffolds; when in cramped FUMES AND GASES
positions such as sitting, kneeling or lying, if there
is a high risk of unavoidable or accidental contact
CAN BE DANGEROUS.
with the workpiece or ground) use the following
5.a. Welding may produce fumes and gases
equipment:
hazardous to health. Avoid breathing these fumes and gases.
• Semiautomatic DC Constant Voltage (Wire) Welder. When welding, keep your head out of the fume. Use enough
• DC Manual (Stick) Welder. ventilation and/or exhaust at the arc to keep fumes and gases
• AC Welder with Reduced Voltage Control. away from the breathing zone. When welding hardfacing
(see instructions on container or SDS) or on lead
3.c. In semiautomatic or automatic wire welding, the electrode,
or cadmium plated steel and other metals or
electrode reel, welding head, nozzle or semiautomatic welding
coatings which produce highly toxic fumes, keep
gun are also electrically “hot”.
exposure as low as possible and within applicable
3.d. Always be sure the work cable makes a good electrical OSHA PEL and ACGIH TLV limits using local
connection with the metal being welded. The connection should exhaust or mechanical ventilation unless exposure
be as close as possible to the area being welded. assessments indicate otherwise. In confined
spaces or in some circumstances, outdoors, a
3.e. Ground the work or metal to be welded to a good electrical (earth) respirator may also be required. Additional
ground. precautions are also required when welding
on galvanized steel.
3.f. Maintain the electrode holder, work clamp, welding cable and
welding machine in good, safe operating condition. Replace 5. b. The operation of welding fume control equipment is affected by
damaged insulation. various factors including proper use and positioning of the
equipment, maintenance of the equipment and the specific
3.g. Never dip the electrode in water for cooling. welding procedure and application involved. Worker exposure
level should be checked upon installation and periodically
3.h. Never simultaneously touch electrically “hot” parts of electrode thereafter to be certain it is within applicable OSHA PEL and
holders connected to two welders because voltage between the ACGIH TLV limits.
two can be the total of the open circuit voltage of both
welders. 5.c. Do not weld in locations near chlorinated hydrocarbon vapors
coming from degreasing, cleaning or spraying operations. The
3.i. When working above floor level, use a safety belt to protect heat and rays of the arc can react with solvent vapors to form
yourself from a fall should you get a shock. phosgene, a highly toxic gas, and other irritating products.

3.j. Also see Items 6.c. and 8. 5.d. Shielding gases used for arc welding can displace air and cause
injury or death. Always use enough ventilation, especially in
confined areas, to insure breathing air is safe.
5.e. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
Safety Data Sheet (SDS) and follow your employer’s safety
practices. SDS forms are available from your welding
distributor or from the manufacturer.
5.f. Also see item 1.b.

Safety 03 of 04 - 06/15/2016
 SAFETY

WELDING AND CUTTING CYLINDER MAY EXPLODE IF

SPARKS CAN CAUSE DAMAGED.
FIRE OR EXPLOSION. 7.a. Use only compressed gas cylinders containing
6.a. Remove fire hazards from the welding area. If the correct shielding gas for the process used
this is not possible, cover them to prevent the welding sparks and properly operating regulators designed for
from starting a fire. Remember that welding sparks and hot the gas and pressure used. All hoses, fittings,
materials from welding can easily go through small cracks and etc. should be suitable for the application and
openings to adjacent areas. Avoid welding near hydraulic lines. maintained in good condition.
Have a fire extinguisher readily available. 7.b. Always keep cylinders in an upright position securely chained to
6.b. Where compressed gases are to be used at the job site, special an undercarriage or fixed support.
precautions should be used to prevent hazardous situations. 7.c. Cylinders should be located:
Refer to “Safety in Welding and Cutting” (ANSI Standard Z49.1)
and the operating information for the equipment being used. • Away from areas where they may be struck or subjected
to physical damage.
6.c. When not welding, make certain no part of the electrode circuit is • A safe distance from arc welding or cutting operations
touching the work or ground. Accidental contact can cause and any other source of heat, sparks, or flame.
overheating and create a fire hazard.
7.d. Never allow the electrode, electrode holder or any other
6.d. Do not heat, cut or weld tanks, drums or containers until the electrically “hot” parts to touch a cylinder.
proper steps have been taken to insure that such procedures
will not cause flammable or toxic vapors from substances inside. 7.e. Keep your head and face away from the cylinder valve outlet
They can cause an explosion even though they have been when opening the cylinder valve.
“cleaned”. For information, purchase “Recommended Safe
Practices for the Preparation for Welding and Cutting of 7.f. Valve protection caps should always be in place and hand tight
Containers and Piping That Have Held Hazardous Substances”, except when the cylinder is in use or connected for use.
AWS F4.1 from the American Welding Society
7.g. Read and follow the instructions on compressed gas cylinders,
(see address above).
associated equipment, and CGA publication P-l, “Precautions for
6.e. Vent hollow castings or containers before heating, cutting or Safe Handling of Compressed Gases in Cylinders,” available from
welding. They may explode. the Compressed Gas Association, 14501 George Carter Way
Chantilly, VA 20151.
6.f. Sparks and spatter are thrown from the welding arc. Wear oil free
protective garments such as leather gloves, heavy shirt, cuffless
trousers, high shoes and a cap over your hair. Wear ear plugs
when welding out of position or in confined places. Always wear
safety glasses with side shields when in a welding area.
FOR ELECTRICALLY
6.g. Connect the work cable to the work as close to the welding area POWERED EQUIPMENT.
as practical. Work cables connected to the building framework or
other locations away from the welding area increase the 8.a. Turn off input power using the disconnect
possibility of the welding current passing through lifting chains, switch at the fuse box before working on
crane cables or other alternate circuits. This can create fire the equipment.
hazards or overheat lifting chains or cables until they fail.
8.b. Install equipment in accordance with the U.S. National Electrical
6.h. Also see item 1.c. Code, all local codes and the manufacturer’s recommendations.

6.I. Read and follow NFPA 51B “Standard for Fire Prevention During 8.c. Ground the equipment in accordance with the U.S. National
Welding, Cutting and Other Hot Work”, available from NFPA, 1 Electrical Code and the manufacturer’s recommendations.
Batterymarch Park, PO box 9101, Quincy, MA 022690-9101.

6.j. Do not use a welding power source for pipe thawing.

Refer to
http://www.lincolnelectric.com/safety
for additional safety information.

Safety 04 of 04 - 06/15/2016
AC-225-S & AC/DC 225/125 TABLE OF CONTENTS

Page

Installation .......................................................................................................Section A
Operating Instructions .................................................................................................................A-1
Input Power and Grounding Connections ............................................................................A-1
Attach Electrode Cable to Holder .........................................................................................A-1
Type A Holder with Octagon Shape .....................................................................................A-1
Type B Holder with Round Ribbed Handle...........................................................................A-2
Electrode and Work Replacement........................................................................................A-2

Operation .........................................................................................................Section B
Welding Polarity Selection....................................................................................................B-1
Duty Cycle ............................................................................................................................B-1
Circuit Breakers ....................................................................................................................B-1
How to Learn Stick Welding .................................................................................................B-1
Electrode Selection Guide ....................................................................................................B-1
Electrode Guide....................................................................................................................B-2
Stick Welding Motions A thru G............................................................................................B-2
Cutting and Piercing Holes ..................................................................................................B-3

Maintenance ....................................................................................................Section C
Routine preventative maintenance ...........................................................................................C-1

Parts Pages .......................................................................................P-65, P-140 Series

6
AC-225-S & AC/DC 225/125 INSTALLATION

Attaching Electrode Cable to Holder

OPERATING
INSTRUCTIONS WARNING
Before attaching the electrode cable to the electrode holder
or the work cable to clamp, be certain the welder is turned
off or the input power is disconnected.
WARNING
Identify the holder type before installing.
• Have an electrician install and service this equipment.
• Turn the input power off at the fuse box before working on equipment. Type A - Holder with Octagon shaped handle and Clamp in
• Do not touch electrically hot parts. Jaws

Input Power and Grounding Connections

1. Loosen locking screw and slide handle off holder. Place han-
dle over electrode cable. The longer cable is used for the
Before starting the installation, check with the power company to be Electrode Cable and is located in the front of machine upper
hole as shown in FIGURE 1A.
sure your power supply is adequate for the voltage, amperes, phase
and frequency specified on the welder nameplate. Also, be sure the FIGURE 1A
planned installation will meet the United States National Electrical
Code and local code requirements. This welder may be operated
from a single phase line or from one phase of a two or three phase Upper Hole
line. with Longer Cable
All models designed to operate on less than 250 volt input lines are
Electrode Cable
shipped with the input cable connected to the welder.
Place the welder so there is free circulation of air in through the
louvers in the back and sides of the case and out of the bottom on
all four sides. Mount a NEMA Type 6-50R receptacle in a suitable
location. Be sure it can be reached by the plug on the input cable
attached to the welder. 2. Remove insulation from electrode cable 1” ± 1/16” (25.4mm
± 1.6mm) from end.
Using the following instructions, have a qualified electrician connect
this receptacle (NEMA 6-50R Type) to the power lines at the fuse 3. Back out cable connecting screw until end is flush with inside
box. Three #10 or larger copper wires are required if conduit is surface of jaw body.
used. For long cable runs over 100'(31m), #8 or larger wire in 4. Remove cable connecting clamp from holder jaws. Place
conduit will be needed to prevent excessive voltage drops. Fuse the clamp over bare end of electrode cable and insert into holder
two hot lines with 50 ampere super lag type fuses as shown in the with clamp centered against connecting screw.
following diagram. The center contact in the receptacle is for the
grounding connection. A green wire in the input cable connects this
contact to the frame of the welder. This insures proper grounding of
the welder frame when the welder plug is inserted into the
receptacle. If a separate disconnect switch is used, it should have
two poles for the two hot lines and both should be fused for 50
amperes.

CONNECT TO A SYSTEM
GROUNDING WIRE. SEE THE UNIT-
ED STATES NATIONAL ELECTRI-
CAL CODE AND/OR LOCAL CODES
FOR OTHER DETAILS AND MEANS
FOR PROPER GROUNDING.

} CONNECT TO HOT WIRES

OF A THREE-WIRE, SINGLE
PHASE SYSTEM OR TO
ONE PHASE OF A TWO OR
THREE PHASE SYSTEM.
5. Tighten cable connecting screw securely against clamp.

A-1
AC-225-S & AC/DC 225/125 INSTALLATION

6. Slide handle into position and secure by turning the locking Attaching Work Cable to Clamp
screw in until it is tight. The threaded end of the screw will
then pass against the inside of the handle and the head of the Insert work cable (with 5/16” clearance hole terminal) through strain
screw will be completely inside the handle. relief hole in work clamp and fasten securely with bolt and nut
provided. The shorter cable is used for the Work Cable and is located
in the front of the machine lower hole as shown below.

Important Safety Note: Make sure insulation is secure and that

screws are tight and cannot be touched. If screw can be touched,
Lower Hole
DO NOT USE HOLDER, contact your distributor. with Shorter
Cable
Type B - Holder with Round, Ribbed Handle

1. Remove handle mounting screw and slide handle off Work

holder. Place handle over electrode cable.The longer cable Cable
is used for the Electrode Cable and is located in the front of
machine upper hole as shown in Figure 1A.
2. If electrode cable does not have a terminal on it, remove
insulation from electrode cable 1” ± 1/16” (25.4mm ±
Terminal or Electrode and Work Cable Replacement
bare strands Cable
1/1
6" Substitution of cables with larger sizes requiring connections to be
1" ±
connecting
Electrode clamp made internally is not recommended. Connections for additional
cable lengths or larger sizes should be properly made externally. Lincoln
Handle
Electric QD (Quick Disconnect) connectors are available for this
purpose.
Cable
Handle mounting screw Clamp connecting screw
If either cable requires replacement for other reasons, they should be
1.6mm) from end. replaced with the appropriate Lincoln parts— and only by qualified
3. Back out clamp connecting screw and remove cable personnel.
connecting clamp.
4. If electrode cable has a terminal attached (#10 clearance
hole), place terminal over cable connecting screw.
Otherwise, place bare end of electrode cable into holder
with cable strands divided equally on both sides of clamp
connecting screw.
5. Tighten cable connecting screw securely into clamp so clamp holds
cable in place.
6. Slide handle into position and secure with handle mounting screw.

A-2
AC-225-S & AC/DC 225/125 OPERATION

Welding Current Selection Electrode Selection Guide

Each position on the current selector switch is marked with the See the following Electrode Selection Guide and additional electrode
output amperes for that setting. Turn the switch to the current selection information. Also refer (C2.10) for Stick Electrode Welding
required for each application.
Guide and electrode sizes: www.lincolnelectric.com.
There is a slight amount of play in each switch position. It is good
practice to move the switch back and forth once within this play Selecting Electrodes
after switching to a new position. This wiping action keeps the
contacts free from dirt and oxides. Which electrode is best for the particular job . . . how do you use it?
These are important questions because the cost, quality, and
CAUTION appearance of your work depends on proper electrode selection and
application. MILD STEEL ELECTRODES may be classified into the
Do not turn the selector switch while welding as this will following groups:
damage the contacts.
Out-of-Position Group (E6011)
Welding Polarity Selection
This group includes electrodes which have a snappy, deep
To get the best results with today’s arc welding electrodes, it is penetrating arc and fast freezing deposits.
important to use the proper polarity. The AC/DC Arc Welder permits
the choice of AC, DC(+) or DC(-), giving additional versatility. These electrodes are used for general purpose all-position fabrication
and repair welding; also the best choice for pipe welding and sheet
Lincoln Electrodes are listed in the chart at the end of this manual. metal butt, corner and edge welds. They can be used for repair work
Each electrode is designed to work best on either DC(+), DC(-) or AC.
when dirt, grease, plating or paint cannot be completely cleaned from
In this electrode chart the preferred polarity is listed first. This is the
polarity which should be used - when available - for best results. the steel. Typically used with motions “A’’ and “B’’ (below) for the
first pass on vertical-up welds.
Duty Cycle
(For Codes 11604 and below). The 60 Hz welders are rated 20% duty High-Deposit Group (E6027, E7024)
cycle and the 50 Hz welders are rated 15% duty cycle for the welding
current shown on each switch position. This group includes the heavy coated, iron powder electrodes with
their soft arc and fast deposit rates. These electrodes have a heavy
slag and produce exceptionally smooth beads. They are generally
(For Codes 11674 and above). The 60 Hz welders are rated 20% duty
used for production welding where all work can be positioned for
cycle and the 50 Hz welders are rated 13% duty cycle for the welding
current shown on each switch position. downhand welding. Stringer beads, with drag technique, are always
preferred over weave passes with these electrodes.

Duty cycle is based on a ten minute period. This means that the arc High-Speed Group (E6012, E6013, E7014)
can be drawn for 2 minutes out of each ten minute period (with a
20% duty cycle unit) without any danger of overheating. If the welder This group includes electrodes which have a moderately forceful arc
is used for more than 2 minutes during several successive ten minute and deposit rates between those of the out-off position and high-
periods, it may overheat. Be sure to leave the unit “on” during each
deposit electrodes. They are primarily general purpose production
10 minute period to let the fan motor run for adequate cooling.
Overheating reduces welder life. electrodes especially for downhill fillets and laps or short and irregular
welds that change direction or position. Also widely used in
maintenance and recommended for sheet metal fillet and lap welds.
Circuit Breakers Motion “D’’ (below) is generally used for vertical-up welding, but
motions “A” and “B” are also suitable.
AC/DC models above Code 8800 have an internal circuit breaker to
prevent overheating when welding on DC. The breaker will trip and Low Hydrogen Group (E7018, E7028)
shut off the DC welding output if the duty cycle is exceeded or if the
cooling air flow is blocked. The cooling fan will continue to run and These electrodes are generally called “low hydrogen.” The name
the DC welding output will automatically come on when the breaker comes from the fact that their coating contains little hydrogen in
has cooled and resets. either moisture or chemical form. Low hydrogen electrodes offer
these benefits: outstanding crack resistance, lowest porosity on
How to Learn Stick Welding sulphur bearing steels, and capable of X-ray quality deposits. Thus,
they are the first choice when welding “problem” steels. E7018 can
be used in all positions, with Motion “C” recommended for the first
Refer to “Learning to Stick Weld” (LTW2) in the operator manual pass on vertical-up welds. NEVER use a whipping technique or a long
section of www.lincolnelectric.com
arc with these electrodes. ALWAYS fill craters by drawing electrodes
away slowly. ALWAYS keep these electrodes dry. Electrodes not used
within a few hours after a container is opened must be stored in heat
cabinets. LH-73 is recommended with the AC-225. Normally, DC(+) is
preferred for these electrodes.

B-1
 AC-225-S & AC/DC 225/125 OPERATION

In Addition to the Electrodes Listed Above the ones listed below may also be used. To determine the correct electrode
diameter and current settings to use please consult the Lincoln Weldirectory (Bulletin #C2.10)
• Fleetweld® 35 • Blue Max® 2100 • Wearshield® ME • Ferroweld®
• Wearshield® MI
• Wearshield® BU • Softweld® 99 Ni
• Jetweld® 1 • Red Baron® 309/309L MR • Wearshield® Mangjet®
• Red Baron® 308L MR • Wearshield® ABR

Stick Welding Motions Motion “A” is a straight whipping motion used with fastfreeze
electrodes to make stringer beads in all positions and on all types of
Manipulation depends on the joint. Some of the common motions are joints. It keeps the molten pool small and lets it freeze quickly so the
shown below. weld metal doesn’t spill down or through the joint. Keep arc short
when in the crater and longer during whip out from the crater.

Motion “B” is a whipping motion combined with a slight weave in the

crater. It is used with fast-freeze electrodes as the first pass on
vertical fillets and V-butts.

Motion “C” is a simple side-to-side weave used with all types of

electrodes to make fill passes on vertical fillets and V-butts. Also
sometimes used with fill-freeze and low hydrogen electrodes to make
the first pass on these joints.

Motion “D” is a triangular weave used with fill-freeze and low

hydrogen electrodes to make one pass vertical fillets and V-butts. It
results in a larger weld than Motion “C’’.

Motion “E” is a box weave used with all types of electrodes to make
fill passes on vertical fillets and V-butts. It is similar to Motion “C,’’
but with a distinct pause and slight upward motion at each edge of
the weld to assure complete crater filling and elimination of undercut.

Motion “F” is a circular motion used with all types of electrodes to

make overhead welds. Sometimes accompanied by a slight whip after
each oscillation in the crater. Always use a series of stringer beads
overhead; do not weave.

Motion “G” is a simple side-to-side weave used with all electrodes on

wide fillets or butts in the flat position.

B-2
AC-225-S & AC/DC 225/125 OPERATION

Cutting (Do not exceed the Duty Cycle — At the beginnig of this
Operation Section)
The arc welder and the electrode can be used for cutting steel and cast
iron. Follow this procedure:
1. Use 1/8” (3.2mm) or 5/32" (4.0mm) Fleetweld 180 electrode.
2. Set welder on maximum (225 amps).
3. Hold long arc on edge of metal, melting it.
4. Push the arc through the molten metal, forcing it to fall away.
5. Raise the electrode, and start over again.
The important thing is to continue this up-and-down, sawing motion,
melting the metal and pushing it away.

Piercing Holes
1. Welder setting: Maximum (225
amps).
2. Electrode: 1/8” (3.2mm) or 5/32"
(4.0mm) Fleetweld 180.
3. Hold the electrode with a long arc
perpendicular over the spot
where the hole is to be made.
4. When the metal is molten, push
the electrode through the molten
puddle.
5. Give the molten metal a chance
to fall through the hole.
6. Circle with a long arc around the
edge of the hole until the desired
diameter hole has been made.
If the electrode is pushed through too soon it will stick in the puddle. Be
sure the metal is molten before pushing through .
NOTE: On heavy metal (5/16" (7.9mm) or thicker), position the plate to be
pierced vertically, and the electrode horizontally. This allows the molten
metal to drip away freely as you are boring through.

B-3
AC-225-S & AC/DC 225/125 MAINTENANCE

MAINTENANCE

Routine preventative maintenance is not required. See your

local Lincoln Electric Authorized Field Service Shop for neces-
sary repairs.

D-1
AC-225-S & AC/DC 225/125 NOTES
 • Do not touch electrically live parts or • Keep flammable materials away. • Wear eye, ear and body protection.
WARNING •
electrode with skin or wet clothing.
Insulate yourself from work and
ground.
Spanish
• No toque las partes o los electrodos • Mantenga el material combustible • Protéjase los ojos, los oídos y el
AVISO DE bajo carga con la piel o ropa mojada. fuera del área de trabajo. cuerpo.
• Aislese del trabajo y de la tierra.
PRECAUCION
French
Ne laissez ni la peau ni des vêtements • Gardez à l’écart de tout matériel • Protégez vos yeux, vos oreilles et
• inflammable. votre corps.
mouillés entrer en contact avec des
ATTENTION pièces sous tension.
• Isolez-vous du travail et de la terre.
German
• Berühren Sie keine stromführenden • Entfernen Sie brennbarres Material! • Tragen Sie Augen-, Ohren- und Kör-
Teile oder Elektroden mit Ihrem perschutz!
WARNUNG Körper oder feuchter Kleidung!
Isolieren Sie sich von den Elektroden
•
und dem Erdboden!
Portuguese
• Não toque partes elétricas e electro- • Mantenha inflamáveis bem guarda- • Use proteção para a vista, ouvido e
dos com a pele ou roupa molhada. dos. corpo.
ATENÇÃO • Isole-se da peça e terra.

Japanese

Chinese

Korean

Arabic

READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CON-
SUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.

SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE
EQUIPO Y LOS CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPER-
VISOR.

LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET

LES PRODUITS A ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE
EMPLOYEUR.

LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEIN-
SATZ DES HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBEN-
FALLS ZU BEACHTEN.
• Keep your head out of fumes. • Turn power off before servicing. • Do not operate with panel open or
• Use ventilation or exhaust to remove
fumes from breathing zone.
guards off. WARNING
Spanish
• Los humos fuera de la zona de res- Desconectar el cable de alimentación No operar con panel abierto o
piración.
• • AVISO DE
de poder de la máquina antes de ini- guardas quitadas.
• Mantenga la cabeza fuera de los ciar cualquier servicio.
humos. Utilice ventilación o
aspiración para gases.
PRECAUCION
French
• Gardez la tête à l’écart des fumées. • Débranchez le courant avant l’entre- • N’opérez pas avec les panneaux
• Utilisez un ventilateur ou un aspira- tien. ouverts ou avec les dispositifs de
teur pour ôter les fumées des zones protection enlevés. ATTENTION
de travail.
German
• Vermeiden Sie das Einatmen von • Strom vor Wartungsarbeiten abschal- • Anlage nie ohne Schutzgehäuse oder
Schweibrauch! ten! (Netzstrom völlig öffnen; Innenschutzverkleidung in Betrieb
• Sorgen Sie für gute Be- und Maschine anhalten!) setzen! WARNUNG
Entlüftung des Arbeitsplatzes!
Portuguese
• Mantenha seu rosto da fumaça. • Não opere com as tampas removidas. • Mantenha-se afastado das partes
Use ventilação e exhaustão para • Desligue a corrente antes de fazer moventes.
•
remover fumo da zona respiratória. serviço. • Não opere com os paineis abertos ou ATENÇÃO
• Não toque as partes elétricas nuas. guardas removidas.
Japanese

Chinese

Korean

Arabic

LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE

USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR.
CUSTOMER ASSISTANCE POLICY
The business of The Lincoln Electric Company is manufacturing and
selling high quality welding equipment, consumables, and cutting
equipment. Our challenge is to meet the needs of our customers and
to exceed their expectations. On occasion, purchasers may ask
Lincoln Electric for advice or information about their use of our
products. We respond to our customers based on the best information
in our possession at that time. Lincoln Electric is not in a position to
warrant or guarantee such advice, and assumes no liability, with
respect to such information or advice. We expressly disclaim any
warranty of any kind, including any warranty of fitness for any
customer’s particular purpose, with respect to such information or
advice. As a matter of practical consideration, we also cannot assume
any responsibility for updating or correcting any such information or
advice once it has been given, nor does the provision of information
or advice create, expand or alter any warranty with respect to the sale
of our products.
Lincoln Electric is a responsive manufacturer, but the selection and
use of specific products sold by Lincoln Electric is solely within the
control of, and remains the sole responsibility of the customer. Many
variables beyond the control of Lincoln Electric affect the results
obtained in applying these types of fabrication methods and service
requirements.
Subject to Change – This information is accurate to the best of our
knowledge at the time of printing. Please refer to
www.lincolnelectric.com for any updated information.